81 results on '"Hao, Hua"'
Search Results
2. Position: Smart KT Tape -- A Bendable Wearable System for Muscle Fatigue Sensing
- Author
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Hao-Hua Chu, Cynthia Yun-Shin Liu, Yu-Chia Huang, Jun-An Chen, Hsea-Ching Hsueh, Hsin-Yuan Chen, Polly Huang, Hong Jhih Chen, and Koji Yatani
- Subjects
Position statement ,Muscle fatigue ,Computer science ,business.industry ,Position (vector) ,Skin surface ,Electrical engineering ,Wearable computer ,Systems design ,business ,Flexible electronics - Abstract
We see a major hurdle, as well as a window of opportunity, in wearable system design - making the system soft and bendable for skin surface sensing. In this position statement, we present our design of an FPCB (flexible printed circuit board) based wearable system for muscle fatigue sensing, referred to as the Smart KT Tape.
- Published
- 2019
3. Position: Smart KT Tape -- A Bendable Wearable System for Muscle Fatigue Sensing
- Author
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Chen, Jun-An, primary, Liu, Cynthia Yun-Shin, additional, Chen, Hong Jhih, additional, Chen, Hsin-Yuan, additional, Hsueh, Hsea-Ching, additional, Huang, Yu-Chia, additional, Yatani, Koji, additional, Chu, Hao-Hua, additional, and Huang, Polly, additional
- Published
- 2019
- Full Text
- View/download PDF
4. Case Study of Adapting a Phone-based Support System to Enable Drug-dependent Patients to Develop Coping Skills
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Yanina Kalinicheva, Chao-Hui Lee, Hao-Hua Chu, Ya-Fang Avon Lin, Cheng-Yuan Kelvin Li, Hao-Chuan Wang, and Ming-Chyi Huang
- Subjects
User testing ,Medical education ,media_common.quotation_subject ,05 social sciences ,030508 substance abuse ,Abstinence ,Skills management ,03 medical and health sciences ,Drug dependent ,Phone ,0501 psychology and cognitive sciences ,Support system ,0305 other medical science ,Psychology ,050107 human factors ,media_common - Abstract
This paper describes a case study of adapting a phone-based support system (CopeDiary) to help drug-dependent patients obtain, maintain, and practice coping skills for dealing with high-risk situations, thereby preventing drug relapse. We designed and implemented CopeDiary and conducted real-world user testing on three recovering drug-dependent patients receiving outpatient abstinence treatment at a hospital. CopeDiary was designed to be an assistive tool for therapists to educate drug-dependent patients about coping skills. Follow-up interviews revealed design-related challenges regarding how to engage drug-dependent patients and therapists about learning and teaching coping strategies for daily life.
- Published
- 2017
5. Improving NIC algorithm using different binary structure elements for multi-modal foreground detection
- Author
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Cam-Hao Hua, Sungyoung Lee, and Thien Huynh-The
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Background subtraction ,Foreground detection ,Computer science ,business.industry ,020208 electrical & electronic engineering ,Frame (networking) ,Binary number ,02 engineering and technology ,Standard deviation ,Modal ,Metric (mathematics) ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,Computer vision ,Artificial intelligence ,business ,Algorithm ,Jitter - Abstract
This paper improves a remarkable background estimation algorithm, namely Neighbor-based Intensity Correction (NIC) which is used in the background subtraction technique for foreground detection. The algorithm has an efficient intensity correction scheme to update the current background based on calculating the standard deviation of two windows captured from the background and the input frame in which the windows are constructed by a squared-structure binary mask. Although the NIC algorithm achieved the comparative results with existing approaches on the foreground detection accuracy and processing speed, its performance in the multi-modal background including high-speed motion and camera jitter should be improved. In the original algorithm, we recognize that the shape of a binary mask further affects the updating performance besides the window size which was already analyzed. Various shapes are therefore recommended for the multi-modal background adaptation. Moreover, an adaptive threshold identified by referring several previous Otsu thresholds to cope with the high-speed motion challenge is proposed. Experimental results on some standard datasets such CAVIAR 2004, AVSS2007, PETS 2009, and CDNET 2014, demonstrate that the foreground detection accuracy is significantly boosted with 2.6--6.7% of the F-measure metric.
- Published
- 2017
6. Challenges and opportunities for designing new technology to reveal early warning signs in acute psychiatric units
- Author
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Hao-Hua Chu, Yaliang Chuang, Chuang-Wen You, Cheng-Yuan Li, Ming-Chyi Huang, Ya-Fang Lin, Lin-Lin Chen, and Ya-Han Lee
- Subjects
Remote patient monitoring ,Computer science ,020204 information systems ,0202 electrical engineering, electronic engineering, information engineering ,medicine ,Early warning signs ,Early warning system ,Psychiatric units ,020206 networking & telecommunications ,02 engineering and technology ,Medical emergency ,medicine.disease - Abstract
This paper describes the challenges and lessons learned in the design of a patient monitoring and early warning system for patients in acute psychiatric centers. We began by conducting contextual inquiries and a focus group to identify the challenges and opportunities for the application of new technologies. The resulting themes were then used in the development of wearable sensing and environment monitoring devices that can be configured for individual patients and the specifics of the facility.
- Published
- 2016
7. KeDiary
- Author
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Ya-Fang Lin, Hao-Hua Chu, Ming-Chyi Huang, Chao-Hui Lee, Chuang-Wen You, Hao-Chuan Wang, Yu-Lun Tsai, and Cheng-Yuan Li
- Subjects
Drug ,medicine.medical_specialty ,business.industry ,media_common.quotation_subject ,Addiction ,05 social sciences ,020207 software engineering ,02 engineering and technology ,Southeast asia ,Phone ,0202 electrical engineering, electronic engineering, information engineering ,Medicine ,0501 psychology and cognitive sciences ,Ketamine ,Support system ,Club drug ,Young adult ,business ,Psychiatry ,050107 human factors ,media_common ,medicine.drug - Abstract
Ketamine is an addictive drug that has been shown to inflict considerable physical and mental damage on users. Due in part to its low cost, ketamine has become one of the most popular club drugs among young adults and teenagers in Southeast Asia. This paper proposes a phone-based support system (KeDiary) with Bluetooth-enabled device for the screening of saliva, as a means of assisting ketamine-dependent patients to self-monitor their ketamine use following acute withdrawal treatment. We also conducted a practical experiment to evaluate the feasibility of the proposed system, wherein three ketamine-dependent patients self-administered tests at least once per day over a period of three weeks. Follow-up interviews with the same users helped in the further refinement of the proposed self-monitoring system.
- Published
- 2016
8. Case Study of Adapting a Phone-based Support System to Enable Drug-dependent Patients to Develop Coping Skills
- Author
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Lin, Ya-Fang Avon, primary, Li, Cheng-Yuan Kelvin, additional, Kalinicheva, Yanina, additional, Huang, Ming-Chyi, additional, Lee, Chao-Hui, additional, Wang, Hao-Chuan, additional, and Chu, Hao-Hua, additional
- Published
- 2017
- Full Text
- View/download PDF
9. Adaptive Drone Sensing with Always Return-To-Home Guaranteed
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Yao Hua Ho, Yu-Te Huang, Hao-Hua Chu, and Ling-Jyh Chen
- Subjects
Scheme (programming language) ,Engineering ,business.industry ,Real-time computing ,Environmental sensing ,business ,Sensing system ,computer ,Energy (signal processing) ,Drone ,Simulation ,computer.programming_language - Abstract
In this paper, we proposed an Adaptive Return-to-Home Sensing (ARS) algorithm for a drone sensing system deployed in an open area with missions to conduct periodic environmental sensing. ARS scheme is able to conduct as many rounds of environmental sensing without drastic oscillation between consecutive sensing attempts while reserve sufficient energy for the drone to fly back home. We evaluate the ARS scheme under environmental difficulties. The results demonstrate the proposed scheme can conduct as many rounds of environmental sensing as possible without drastic oscillation while preserve enough energy for the done to return home.
- Published
- 2015
10. Session details: Sports Tracking & Training
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Hao-Hua Chu
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Multimedia ,Computer science ,Training (meteorology) ,Tracking (education) ,Session (computer science) ,computer.software_genre ,computer - Published
- 2015
11. SoberDiary
- Author
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Hao-Chuan Wang, Hao-Hua Chu, Polly Huang, Ming-Chyi Huang, Chuang-Wen You, Cheng-Lin Lin, Yen-Chang Chen, Kuo-Cheng Wang, and Po-Shiun Ho
- Subjects
medicine.medical_specialty ,Heavy drinking ,business.industry ,Computer science ,Standard treatment ,Alcohol dependence ,Alcohol ,Chronic disorders ,chemistry.chemical_compound ,Harm ,Sobriety ,chemistry ,Phone ,Intervention (counseling) ,medicine ,Support system ,business ,Psychiatry ,Alcohol consumption - Abstract
Alcohol dependence is a chronic disorder associated with severe harm in multiple areas, and relapsing is easy, despite treatment. This study proposes SoberDiary, a phone-based support system that enables alcohol-dependent patients to self-monitor and -manage their own alcohol behavior, and remain sober in their daily lives. We tested SoberDiary in a real-life 12-week user study involving 27 clinical patients. The quantitative and qualitative results revealed that SoberDiary helped patients self-monitor and -manage their alcohol-use behavior, and reduced their total alcohol consumption as well as the number of heavy drinking days. Compared with patients who received standard treatment alone, this study demonstrated SoberDiary successfully complemented current alcohol treatment in reducing patients' alcoholic cravings and dropout rate over 3-month study period. Follow-up interviews further revealed the sophisticated use practices and value of SoberDiary.
- Published
- 2014
12. Session details: Children's therapy
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Hao-Hua Chu
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Medical education ,Computer science ,Session (computer science) - Published
- 2014
13. Persuasive technology to improve eating behavior using a sensor-embedded fork
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Hao-Hua Chu, Cheng-Yuan Li, Azusa Kadomura, Koji Tsukada, and Itiro Siio
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Ubiquitous computing ,Young child ,InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI) ,Computer science ,ComputingMilieux_PERSONALCOMPUTING ,Persuasive technology ,GeneralLiterature_MISCELLANEOUS ,Human nutrition ,Human–computer interaction ,Fork (system call) ,Eating behavior ,Eating problems ,Simulation ,Picky eater - Abstract
This paper describes the design of a digital fork and a mobile interactive and persuasive game for a young child who is a picky eater and/or easily distracted during mealtime. The system employs Ubicomp technology to educate children on the importance of a balanced diet while motivating proper eating behavior. To sense a child's eating behavior, we have designed and prototyped a sensor-embedded digital fork, called the Sensing Fork. Furthermore, we have developed a story-book and persuasive game, called the Hungry Panda, on a smartphone. This capitalizes on the capabilities of the Sensing Fork to interact with and modify children's eating behavior during mealtime. We report the results of a real-life study that involves mother-child subjects and tested the effectiveness of the Sensing Fork and Hungry Panda game in addressing children's eating problems. Our findings exhibit positive effects for changing children's eating behavior.
- Published
- 2014
14. BioScope
- Author
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Seng-Yong Lau, Hao-Hua Chu, Chi-Hsien Yen, Chuang-Wen You, Cheryl Chia-Hui Chen, Kuo-Cheng Wang, Cheng-Yuan Li, and Polly Huang
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Data collection ,Nursing ,Computer science ,Human–computer interaction ,Nursing assessment ,Extensibility ,Bandage - Abstract
To facilitate the collection of patient biosignals, designing extensible sensing devices in which sensor management is simplified is essential. This paper presents BioScope, an extensible sensing system that facilitates collecting data used in nursing assessments. We conducted experiments to demonstrate the potential of the system. The results obtained in this study can be applied in improving the design, thus enabling BioScope to facilitate data collection in numerous potential applications.
- Published
- 2014
15. Lab experiment vs. crowdsourcing
- Author
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Polly Huang, Cing-Yu Chu, Su-Ling Yeh, Hao-Hua Chu, and Yu-Chuan Yen
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Voice over IP ,Multimedia ,Computer science ,business.industry ,Provisioning ,Voice over ,computer.software_genre ,Crowdsourcing ,User studies ,User experience design ,Robustness (computer science) ,The Internet ,business ,computer - Abstract
To deliver voice over the Internet in a cost-effective way, it is essential to quantify the quality of user experience (i.e., QoE) of a voice service at various provisioning levels. Conducting user studies is an inevitable step facilitating quantitative studies of QoE. The two experimental methods -- lab experiment vs. crowdsourcing via Amazon Mechanical Turk [1] -- are compared in this study. We find that, for the study of Skype call quality, the crowdsourcing approach stands out in terms of efficiency and user diversity, which in turn strengthens the robustness and the depth of the analysis.
- Published
- 2013
16. Challenges and opportunities for designing new technology to reveal early warning signs in acute psychiatric units
- Author
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Li, Cheng-Yuan, primary, You, Chuang-Wen, additional, Chuang, Yaliang, additional, Lin, Ya-Fang, additional, Lee, Ya-Han, additional, Huang, Ming-Chyi, additional, Chu, Hao-Hua, additional, and Chen, Lin-Lin, additional
- Published
- 2016
- Full Text
- View/download PDF
17. KeDiary
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You, Chuang-Wen, primary, Lin, Ya-Fang, additional, Li, Cheng-Yuan, additional, Tsai, Yu-Lun, additional, Huang, Ming-Chyi, additional, Lee, Chao-Hui, additional, Wang, Hao-Chuan, additional, and Chu, Hao-Hua, additional
- Published
- 2016
- Full Text
- View/download PDF
18. Sensor-embedded teeth for oral activity recognition
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Wei-Ju Chen, Hao-Hua Chu, Yen-Chang Chen, Polly Huang, and Cheng-Yuan Li
- Subjects
Activity recognition ,stomatognathic diseases ,Embedded teeth ,Computer science ,Speech recognition ,Wearable computer ,Sensory system ,Laboratory experiment ,Classifier (UML) - Abstract
This paper presents the design and implementation of a wearable oral sensory system that recognizes human oral activities, such as chewing, drinking, speaking, and coughing. We conducted an evaluation of this oral sensory system in a laboratory experiment involving 8 participants. The results show 93.8% oral activity recognition accuracy when using a person-dependent classifier and 59.8% accuracy when using a person-independent classifier.
- Published
- 2013
19. Sensing fork and persuasive game for improving eating behavior
- Author
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Yen-Chang Chen, Koji Tsukada, Azusa Kadomura, Hao-Hua Chu, Cheng-Yuan Li, and Itiro Siio
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Ubiquitous computing ,InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI) ,Computer science ,InformationSystems_INFORMATIONSYSTEMSAPPLICATIONS ,digestive, oral, and skin physiology ,ComputingMilieux_PERSONALCOMPUTING ,GeneralLiterature_MISCELLANEOUS ,Human–computer interaction ,Food choice ,Fork (system call) ,Table (database) ,Eating behavior ,human activities ,Eating problems ,Simulation - Abstract
We present a fork-type sensing device called the Sensing Fork that detects the eating behavior of children (food choice and eating actions), and a smartphone game to address children's eating problems based on their eating behavior. This paper describes the design and implementation of the Sensing Fork prototype and a play-based eating game called Hungry Panda 2, which works with the Sensing Fork. This game focuses on motivating children to eat all kinds of food on their table.
- Published
- 2013
20. Exponential quantization
- Author
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Chien-nan Chen, Hao-Hua Chu, Cing-Yu Chu, Polly Huang, Su-Ling Yeh, and Yu-Chuan Yen
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Voice over IP ,Computer Networks and Communications ,business.industry ,Computer science ,InformationSystems_INFORMATIONSYSTEMSAPPLICATIONS ,Quantization (signal processing) ,Rate control ,Data_CODINGANDINFORMATIONTHEORY ,business ,Software ,Computer network ,User-centered design - Abstract
As Skype has become popular and a profitable business, the long-standing problem of how to deliver Skype calls deserves a serious revisit from an economic viewpoint. This study proposes a rate control mechanism for Skype calls that satisfies more users and satisfies users more than the greedy-naïve mechanism, as well as the mechanism implemented in Skype.
- Published
- 2013
21. Sensing fork
- Author
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Hao-Hua Chu, Itiro Siio, Yen-Chang Chen, Azusa Kadomura, Cheng-Yuan Li, and Koji Tsukada
- Subjects
InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI) ,Human–computer interaction ,Computer science ,InformationSystems_INFORMATIONSYSTEMSAPPLICATIONS ,Fork (system call) ,ComputingMilieux_PERSONALCOMPUTING ,Mobile computing ,Eating behavior ,Eating problems ,GeneralLiterature_MISCELLANEOUS ,Simulation - Abstract
We propose a fork-type sensing device, Sensing Fork, which detects children's eating behavior (eating actions and chosen food) and a smartphone game to address children's eating problems. This paper describes the design and implementation of the Sensing Fork prototype and the play-based eating game called Hungry Panda.
- Published
- 2013
22. A phone-based support system to assist alcohol recovery
- Author
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Cindy Hsin-Liu Kao, Chun-Hung Pan, Ming-Chyi Huang, Kuo-Chen Wang, Allan C. Lin, Chun-Mao Liang, Chi-An Wang, Hao-Hua Chu, Ming-Tung Hong, and Chuang-Wen You
- Subjects
Rehabilitation ,Multimedia ,Remote patient monitoring ,medicine.medical_treatment ,Addiction ,media_common.quotation_subject ,computer.software_genre ,Persuasive technology ,medicine.disease ,Physiatrists ,Phone ,medicine ,Support system ,Medical emergency ,Psychology ,computer ,Storytelling ,media_common - Abstract
This study explores the use of mobile phones as a normal life support system that connects alcohol addict patients to their addiction physiatrists after they leave a rehabilitation center. This paper presents the design and implementation of this phone-based support system that enables continuous patient monitoring and provides feedback support to the patients.
- Published
- 2013
23. Listen-to-nose
- Author
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Nan-Chen Chen, Kuo-Cheng Wang, and Hao-Hua Chu
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Reference data ,medicine.anatomical_structure ,Computer science ,otorhinolaryngologic diseases ,medicine ,Medical emergency ,medicine.disease ,Nose ,Nasal symptoms - Abstract
This paper proposes Listen-to-Nose, a phone-based system that detects and records when and where a person's nose-related symptoms, such as sneezing and runny nose, occur in everyday settings. It is hoped that this system can be used to collect reference data for doctors to diagnose the cause of these symptoms.
- Published
- 2012
24. BlimpProbe
- Author
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Hao-Hua Chu and Cheng-Yuan Li
- Subjects
Above ground ,Atmosphere (unit) ,Blimp ,Computer science ,Environmental monitoring ,Sensing system ,Remote sensing - Abstract
This paper proposes a blimp-based vehicular sensing system, called BlimpProbe, which travels above ground to perform environmental monitoring. We describe an application in atmosphere science that is suitable for this blimp-based sensing system.
- Published
- 2012
25. TriopusNet
- Author
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Kuei-Han Li, Hao-Hua Chu, Ted Tsung-Te Lai, Polly Huang, and Wei-Ju Chen
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Key distribution in wireless sensor networks ,Brooks–Iyengar algorithm ,Wireless network ,Computer science ,business.industry ,Sensor node ,Node (networking) ,Real-time computing ,Mobile wireless sensor network ,business ,Wireless sensor network ,Sensor web ,Computer network - Abstract
This study presents TriopusNet, a mobile wireless sensor network system for autonomous sensor deployment in pipeline monitoring. TriopusNet works by automatically releasing sensor nodes from a centralized repository located at the source of the water pipeline. During automated deployment, TriopusNet runs a sensor deployment algorithm to determine node placement. While a node is flowing inside the pipeline, it performs placement by extending its mechanical arms to latch itself onto the pipe's inner surface. By continuously releasing nodes into pipes, the TriopusNet system builds a wireless network of interconnected sensor nodes. When a node runs at a low battery level or experiences a fault, the TriopusNet system releases a fresh node from the repository and performs a node replacement algorithm to replace the failed node with the fresh one. We have evaluated the TriopusNet system by creating and collecting real data from an experimental pipeline testbed. Comparing with the nonautomated static deployment, TriopusNet is able to use less sensor nodes to cover a sensing area in the pipes while maintaining network connectivity among nodes with high data collection rate. Experimental results also show that TriopusNet can recover from the network disconnection caused by a battery-depleted node and successfully replace the battery-depleted node with a fresh node.
- Published
- 2012
26. HeatProbe
- Author
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Nan-Chen Chen, Bo-Jhang Ho, Chuang-Wen You, Hao-Hua Chu, Ming-Syan Chen, and Hsin-Liu Cindy Kao
- Subjects
Computer science ,business.industry ,Electricity meter ,Thermal ,Accounting ,Electricity ,business ,Track (rail transport) ,Energy (signal processing) ,Power (physics) - Abstract
To promote energy-saving behavior, disaggregating electricity usage is critical for increasing consumer awareness of energy usage behavior. This study proposes HeatProbe, a thermal-based power meter system that uses thermal imaging to track disaggregated appliance usage. We have designed, prototyped, and tested the HeatProbe system. Results show that HeatProbe successfully senses individual appliance operating durations with an average error of 125.03 seconds, achieving 80.2% appliance power accounting accuracy in different appliance usage scenarios.
- Published
- 2011
27. PipeProbe
- Author
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Tsung-Te Lai, Hao-Hua Chu, Polly Huang, and Yu-Han Chen
- Subjects
Pipeline transport ,Computer science ,business.industry ,Acoustics ,Embedded system ,Testbed ,Mobile wireless sensor network ,Wireless ,Topology (electrical circuits) ,Angular velocity ,business ,Wireless sensor network ,Pipeline (software) - Abstract
This paper presents PipeProbe, a mobile sensor system for determining the spatial topology of hidden water pipelines behind walls. PipeProbe works by dropping a tiny wireless sensor capsule into the source of the water pipelines. As the PipeProbe capsule traverses the pipelines, it gathers and transmits pressure and angular velocity readings. Through spatio-temporal analysis on the sensor readings, our algorithm locates all turning points in the pipelines and maps their 3D spatial topology. We evaluated the PipeProbe system by developing a prototype and using data collected in our experimental testbed. Results show that the PipeProbe system successfully located and estimated 90% of all pipe tube lengths within 8-cm accuracy on average tube lengths of 76 cm. PipeProbe also successfully located 90% of all turning points within 15-cm accuracy on average length paths of 335cm.
- Published
- 2010
28. Convenience probe
- Author
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Chih-Chiang Wei, Lien-Ti Bei, Chuang-Wen You, Hao-Hua Chu, Wei-Fehng Wang, Ming-Syan Chen, Jya-Cheng Hu, and Yu-Han Chen
- Subjects
Participatory sensing ,Ubiquitous computing ,Scale (ratio) ,Flow (mathematics) ,Computer science ,business.industry ,Internet privacy ,Telecommunications equipment ,business ,Data science - Abstract
This paper proposes Convenience Probe, a participatory sensing tool to collect large-scale consumer flow behaviors from everyday mobile phones. We hope to use Convenience Probe to collect real consumer flow data that will help convenience store chains in store location assessment.
- Published
- 2010
29. Adaptive Drone Sensing with Always Return-To-Home Guaranteed
- Author
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Huang, Yu-Te, primary, Ho, Yao-Hua, additional, Chu, Hao-hua, additional, and Chen, Ling-Jyh, additional
- Published
- 2015
- Full Text
- View/download PDF
30. User-centric radio power control for opportunistic mountain hiking networks
- Author
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Seng-Yong Lau, Po-Yen Lin, Hao-Hua Chu, Yu-Te Huang, Kun-chan Lan, Ling-Jyh Chen, Jyh-How Huang, and Polly Huang
- Subjects
Scheme (programming language) ,business.industry ,Computer science ,ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS ,Time division multiple access ,Accelerometer ,business ,Protocol (object-oriented programming) ,computer ,Wireless sensor network ,computer.programming_language ,User-centered design ,Computer network ,Efficient energy use ,Power control - Abstract
Saving DTNs' battery power to prolong the system life time has been an important research topic which scientists try to optimize. Most researches fall into two categories - Time Division Multiple Access based ones, and Low Power Listening ones by turning the listener's radio on/off intermittenly with long sending preambles. In this paper we propose solving the problem from a whole new angle - by using the motes' physical behavior, which is detectable by relatively energy-cheap accelerometer, as the judgment for turning the radio on/off. This scheme can be used in combination with any energy efficient DTN MAC protocols. We evaluate the protocol by running simulations with real hikers' traces and the result is shown in the evaluation section.
- Published
- 2010
31. SoberDiary
- Author
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You, Chuang-wen, primary, Wang, Kuo-Cheng, additional, Huang, Ming-Chyi, additional, Chen, Yen-Chang, additional, Lin, Cheng-Lin, additional, Ho, Po-Shiun, additional, Wang, Hao-Chuan, additional, Huang, Polly, additional, and Chu, Hao-Hua, additional
- Published
- 2015
- Full Text
- View/download PDF
32. Session details: Sports Tracking & Training
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Chu, Hao-Hua, primary
- Published
- 2015
- Full Text
- View/download PDF
33. MemoIcon
- Author
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Bing-Yu Chen, Hao-Hua Chu, Ming-Yang Yu, Rung-Huei Liang, Yu-Ming Chu, Kai-Yin Cheng, Sy-Yen Kuo, Hung-Jung Lin, and Rong-Hao Liang
- Subjects
Multimedia ,InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI) ,Computer science ,Pattern recognition (psychology) ,computer.software_genre ,Productivity ,computer - Abstract
MemoIcon increases productivity with a new interaction method based on pattern recognition and multi-touch techniques. It easily binds virtual information to everyday real objects and transforms them into physical icons that embody virtual tasks as tangible items. Virtual information becomes tangible and physically present.
- Published
- 2009
34. Playful bottle
- Author
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Meng-Chieh Chiu, Cheryl Chia-Hui Chen, Shih-Ping Chang, Yu-Chen Chang, Fei-Hsiu Hsiao, Ju-Chun Ko, and Hao-Hua Chu
- Subjects
Persuasion ,Multimedia ,Computer science ,media_common.quotation_subject ,ComputingMilieux_PERSONALCOMPUTING ,Mobile computing ,Social persuasion ,Persuasive technology ,computer.software_genre ,Motion (physics) ,Human–computer interaction ,Mobile phone ,Water intake ,human activities ,computer ,media_common - Abstract
This study of mobile persuasion system explores the use of a mobile phone, when attached to an everyday object used by an everyday behavior, becomes a tool to sense and influence that behavior. This mobile persuasion system, called Playful Bottle system, makes use of a mobile phone attached to an everyday drinking mug and motivates office workers to drink healthy quantities of water. A camera and accelerometer sensors in the phone are used to build a vision/motion-based water intake tracker to detect the amount and regularity of water consumed by the user. Additionally, the phone includes hydration games in which natural drinking actions are used as game input. Two hydration games are developed: a single-user TreeGame with automated computer reminders and a multi-user ForestGame with computer-mediated social reminders from members of the group playing the game. Results from 7-week user study with 16 test subjects suggest that both hydration games are effective for encouraging adequate and regular water intake by users. Additionally, results of this study suggest that adding social reminders to the hydration game is more effective than system reminders alone.
- Published
- 2009
35. Double-side multi-touch input for mobile devices
- Author
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Hao-Hua Chu, Yung-jen Jane Hsu, Chi-wen Euro Chen, Erh-li Early Shen, and Sung-sheng Daniel Tsai
- Subjects
InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI) ,business.industry ,Computer science ,Human–computer interaction ,Multi-touch ,User interface ,business ,Mobile device ,Mobile interaction ,Computer hardware ,Gesture ,Front (military) - Abstract
We present a new mobile interaction model, called double-side multi-touch, based on a mobile device that receives simultaneous multi-touch input from both the front and the back of the device. This new double-sided multi-touch mobile interaction model enables intuitive finger gestures for manipulating 3D objects and user interfaces on a 2D screen.
- Published
- 2009
36. SmartPlayer
- Author
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Hao-Hua Chu, Sheng-Jie Luo, Kai-Yin Cheng, and Bing-Yu Chen
- Subjects
Multimedia ,Event (computing) ,Computer science ,computer.software_genre ,computer ,User-centered design - Abstract
In this paper we propose a new video interaction model called adaptive fast-forwarding to help people quickly browse videos with predefined semantic rules. This model is designed around the metaphor of scenic car driving, in which the driver slows down near areas of interest and speeds through unexciting areas. Results from a preliminary user study of our video player suggest the following: (1) the player should adaptively adjust the current playback speed based on the complexity of the present scene and predefined semantic events; (2) the player should learn user preferences about predefined event types as well as a suitable playback speed; (3) the player should fast-forward the video continuously with a playback rate acceptable to the user to avoid missing any undefined events or areas of interest. Furthermore, our user study results suggest that for certain types of video, our SmartPlayer yields better user experiences in browsing and fast-forwarding videos than existing video players' interaction models.
- Published
- 2009
37. Spinning beacons for precise indoor localization
- Author
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Tsung-Te Lai, Hao-Hua Chu, Polly Huang, Jr-ben Tian, and Ho-lin Chang
- Subjects
Orientation (computer vision) ,Computer science ,business.industry ,Beacon ,symbols.namesake ,Doppler frequency ,symbols ,Computer vision ,Artificial intelligence ,business ,Telecommunications ,Doppler effect ,Spinning ,Wireless sensor network - Abstract
This work proposes the novel use of spinning beacons for precise indoor localization. The proposed "SpinLoc" (Spinning Indoor Localization) system uses "spinning" (i.e., rotating) beacons to create and detect predictable and highly distinguishable Doppler signals for sub-meter localization accuracy. The system analyzes Doppler frequency shifts of signals from spinning beacons, which are then used to calculate orientation angles to a target. By obtaining orientation angles from two or more beacons, SpinLoc can precisely locate stationary or slow-moving targets. After designing and implementing the system using MICA2 motes, its performance was tested in an indoor garage environment. The experimental results revealed a median error of 40~50 centimeters and a 90% error of 70~90 centimeters.
- Published
- 2008
38. Modeling and simulation comparison of two time synchronization protocols
- Author
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Polly Huang, Hao-Hua Chu, Keng-hao Chang, Jr-ben Tian, and Tsung-Han Lin
- Subjects
Modeling and simulation ,Protocol (science) ,Computer science ,Distributed computing ,Real-time computing ,Data synchronization ,Node (circuits) ,Measure (mathematics) ,Wireless sensor network ,GeneralLiterature_MISCELLANEOUS ,Clock synchronization ,Domain (software engineering) - Abstract
To infer correctly application semantics, sensor network applications often need accurate times on observations that are reported from distributed sensor nodes. Since the nodes' local clocks can go out-of-sync due to clock drifts, a networked time synchronization protocol is needed to synchronize their clocks to a reference clock. This paper provides performance modeling and comparison between two time synchronization protocols: TPSN clock synchronization (clock-sync) and TSS event synchronization (event-sync). Their main difference is that the TPSN clock-sync synchronizes all nodes' local clocks to a global reference clock, whereas TSS event-sync synchronizes events' generation times from different local nodes to their sink nodes' clocks. Although these two time synchronization protocols have their respective limitations in application scenarios, they are comparable in that they also share a large domain with none of these limitations. This paper evaluates these two protocols by considering different ad-hoc network sizes, node mobility levels, and traffic volumes. In order to fully understand the tradeoffs between these two time synchronization protocols, we have derived analytical models on their performances and conducted simulations to measure the impact of these variables. Both the simulation results and analytical models show that (1) event-sync provides much better accuracy than clock-sync, (2) under very high node mobility level, clock-sync may achieve better accuracy than event-sync, and (3) under increasing traffic volume clock-sync scales better.
- Published
- 2008
39. Playful toothbrush
- Author
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Pei-Yu Chi, Nan-Yi Hsu, Hao-Hua Chu, Hsin-Yen Wang, Ya-Lin Hsieh, Chao-Ju Huang, Jin-Ling Lo, and Yu-Chen Chang
- Subjects
Ubiquitous computing ,Teeth cleaning ,business.industry ,education ,Dentistry ,Persuasive technology ,digestive system ,law.invention ,Tooth brushing ,stomatognathic diseases ,stomatognathic system ,law ,Toothbrush ,business ,Psychology - Abstract
This case study in UbiComp technology and design presents a "Playful Toothbrush" system for assisting parents and teachers to motivate kindergarten children to learn proper and thorough brushing skills. The system includes a vision-based motion tracker that recognizes different tooth brushing strokes and a tooth brushing game in which the child cleans a virtual, mirror picture of his/her dirty teeth by physically brushing his/her own teeth. The user study results suggest that Playful Toothbrush enhances the effectiveness of kindergarten children in brushing their teeth, as measured by number of brushing strokes, duration of brushing and thoroughness of teeth cleaning.
- Published
- 2008
40. Chromirror
- Author
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Hao-Hua Chu, Chueh-Min Cheng, Yung-Yu Chuang, Ming Ouhyoung, Ming-Yang Yu, and Meng-Fang Chung
- Subjects
Mirror image ,business.industry ,Computer science ,Computer graphics (images) ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Computer vision ,Chromatic scale ,Artificial intelligence ,business ,ComputingMethodologies_COMPUTERGRAPHICS ,Rendering (computer graphics) - Abstract
This study presents the "ChroMirror" system, a digital mirror imaging system which helps users select appropriate clothing color combinations. By digitally rendering a mirror image of the user wearing clothing in different color-harmonic combinations, this system enables users to easily and playfully explore a wide variety of chromatic and color-harmonic clothing combinations (i.e., without having to physically change clothing). A long-term goal of the ChroMirror system is to encourage users to experiment with colorful and color-harmonic clothes.
- Published
- 2008
41. Enabling nutrition-aware cooking in a smart kitchen
- Author
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Bing-Yu Chen, Jen-Hao Chen, Hao-Hua Chu, and Pei-Yu Chi
- Subjects
Meal ,Ubiquitous computing ,Cooking process ,Multimedia ,InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI) ,Computer science ,digestive, oral, and skin physiology ,technology, industry, and agriculture ,food and beverages ,ComputerApplications_COMPUTERSINOTHERSYSTEMS ,Interaction design ,computer.software_genre ,Smart kitchen ,population characteristics ,Smart environment ,Meal preparation ,InformationSystems_MISCELLANEOUS ,computer - Abstract
We present a smart kitchen that can enhance the traditional meal preparation and cooking process by raising awareness of the nutrition facts in food ingredients that go into a meal. The goal is to promote healthy cooking. Our smart kitchen is augmented with sensors to detect cooking activities and provides digital feedbacks to users about nutritional information on the used food ingredients. We have created a preliminary prototype for evaluation, and the result is promising.
- Published
- 2007
42. A hybrid routing approach for opportunistic networks
- Author
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Hao-Hua Chu, Chen-Hung Yu, Ling-Jyh Chen, Tony Sun, and Yung Chih Chen
- Subjects
Key distribution in wireless sensor networks ,Robustness (computer science) ,business.industry ,Wireless network ,Computer science ,Underwater sensor networks ,Erasure code ,business ,Wireless sensor network ,Hybrid routing ,Coding (social sciences) ,Computer network - Abstract
With wireless networking technologies extending into the fabrics of our working and operating environments, proper handling of intermittent wireless connectivity and network disruptions is of significance. As the sheer number of potential opportunistic application continues to surge (i.e. wireless sensor networks, underwater sensor networks, pocket switched networks, transportation networks, and etc.), the design for an effective routing scheme that considers and accommodates the various intricate behaviors observed in an opportunistic network is of interest and remained desirable. While previous solutions use either replication or coding techniques to address the challenges in opportunistic networks, the tradeoff of these two techniques only make them ideal under certain network scenarios. In this paper, we propose a hybrid scheme, named H-EC, to deal with a wide variety of opportunistic network cases. H-EC is designed to fully combine the robustness of erasure coding based routing techniques, while preserving the performance advantages of replication techniques. We evaluate H-EC against other similar strategies in terms of delivery ratio and latency, and find that H-EC offers robustness in worst-case delay performance cases while achieving good performance in small delay performance cases. We also discuss the traffic overhead issues associated with H-EC as compared to other schemes, and present several strategies that can potentially alleviate the traffic overhead of H-EC schemes.
- Published
- 2006
43. Sensor-assisted wi-fi indoor location system for adapting to environmental dynamics
- Author
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Yi-Chao Chen, Polly Huang, Hao-Hua Chu, Ji-Rung Chiang, and Arvin Wen Tsui
- Subjects
Environmental dynamics ,Reduction (complexity) ,Wireless site survey ,Calibration (statistics) ,Computer science ,Adaptive system ,Real-time computing ,Doors ,Location systems ,Adaptation method ,Simulation - Abstract
Wi-Fi based indoor location systems have been shown to be both cost-effective and accurate, since they can attain meter-level positioning accuracy by using existing Wi-Fi infrastructure in the environment. However, two major technical challenges persist for current Wi-Fi based location systems, instability in positioning accuracy due to changing environmental dynamics, and the need for manual offline calibration during site survey. To address these two challenges, three environmental factors (people, doors, and humidity) that can interfere with radio signals and cause positioning inaccuracy are identified. Then, we have proposed a sensor-assisted adaptation method that employs RFID sensors and environment sensors to adapt the location systems automatically to the changing environmental dynamics. The proposed adaptation method performs online calibration to build multiple context-aware radio maps under various environmental conditions. Experiments were performed on the sensor-assisted adaptation method. The experimental results show that the proposed adaptive method can avoid adverse reduction in positioning accuracy under changing environmental dynamics.
- Published
- 2005
44. Design and evaluation of mProducer
- Author
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Hao-Hua Chu, Jane Yung-jen Hsu, Yi-Chao Chen, Chon-In Wu, and Chao-Ming Teng
- Subjects
Multimedia ,Computer science ,business.industry ,Interface (computing) ,computer.software_genre ,User interface design ,Human–computer interaction ,Server ,Mobile database ,Mobile search ,User interface ,business ,computer ,Mobile device ,Content management - Abstract
Personal experience computing is about computing support for recording, storing, retrieving, editing, analyzing, and sharing of personal experiences. In this paper, we present our design, implementation and evaluation of a mobile authoring tool called mProducer. mProducer enables a user to generate personal experience content using a mobile device anytime, anywhere. To address challenges in both limited system resources and user interface constraints on a mobile device, mProducer provides several innovative system techniques and UI designs. (1) The Storage Constrained Uploading (SCU) algorithm uploads large multimedia data to remote servers, in order to alleviate the problem of limited storage on a mobile device. (2) Sensor-Assisted Automated Editing utilizes a tilt sensor on the mobile device to automate the detection and removal of blurry frames resulting from excessive amount of camera shaking. This sensor-based solution requires small processing overhead, and it is considered a good alternative to computational-expensive image processing techniques for detecting shaking artifacts. (3) Map-based content management interface incorporates a GPS receiver on a mobile device to record location meta-data for each recording captured by a user, and enables easy, intuitive content navigation on a small screen. (4) Keyframe-based editing enables a user to edit content using only keyframes. We have conducted user studies to evaluate overall editing experience, user satisfaction in the editing quality, task performance time, ease-of-use, and learnability. The results of user studies have shown that keyframe-based editing works best with a storyboard interface. In general, users have found mProducer to be both fun and easy to use on a mobile device.
- Published
- 2004
45. SoberDiary
- Author
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Wang, Kuo-Cheng, primary, Hsieh, Yi-Hsuan, additional, Yen, Chi-Hsien, additional, You, Chuang-Wen, additional, Chen, Yen-Chang, additional, Huang, Ming-Chyi, additional, Lau, Seng-Yong, additional, Kao, Hsin-Liu (Cindy), additional, and Chu, Hao-Hua, additional
- Published
- 2014
- Full Text
- View/download PDF
46. BioScope
- Author
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Li, Cheng-Yuan, primary, Yen, Chi-Hsien, additional, Wang, Kuo-Cheng, additional, You, Chuang-Wen, additional, Lau, Seng-Yong, additional, Chen, Cheryl Chia-Hui, additional, Huang, Polly, additional, and Chu, Hao-Hua, additional
- Published
- 2014
- Full Text
- View/download PDF
47. Persuasive technology to improve eating behavior using a sensor-embedded fork
- Author
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Kadomura, Azusa, primary, Li, Cheng-Yuan, additional, Tsukada, Koji, additional, Chu, Hao-Hua, additional, and Siio, Itiro, additional
- Published
- 2014
- Full Text
- View/download PDF
48. Session details: Children's therapy
- Author
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Chu, Hao-Hua, primary
- Published
- 2014
- Full Text
- View/download PDF
49. Lab experiment vs. crowdsourcing
- Author
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Yen, Yu-Chuan, primary, Chu, Cing-Yu, additional, Yeh, Su-Ling, additional, Chu, Hao-Hua, additional, and Huang, Polly, additional
- Published
- 2013
- Full Text
- View/download PDF
50. Sensor-embedded teeth for oral activity recognition
- Author
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Li, Cheng-Yuan, primary, Chen, Yen-Chang, additional, Chen, Wei-Ju, additional, Huang, Polly, additional, and Chu, Hao-hua, additional
- Published
- 2013
- Full Text
- View/download PDF
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