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171 results on '"Chen, Yanqin"'

5. ACFNet: Attentional Class Feature Network for Semantic Segmentation

Author

Zhang, Fan, Chen, Yanqin, Li, Zhihang, Hong, Zhibin, Liu, Jingtuo, Ma, Feifei, Han, Junyu, and Ding, Errui

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Recent works have made great progress in semantic segmentation by exploiting richer context, most of which are designed from a spatial perspective. In contrast to previous works, we present the concept of class center which extracts the global context from a categorical perspective. This class-level context describes the overall representation of each class in an image. We further propose a novel module, named Attentional Class Feature (ACF) module, to calculate and adaptively combine different class centers according to each pixel. Based on the ACF module, we introduce a coarse-to-fine segmentation network, called Attentional Class Feature Network (ACFNet), which can be composed of an ACF module and any off-the-shell segmentation network (base network). In this paper, we use two types of base networks to evaluate the effectiveness of ACFNet. We achieve new state-of-the-art performance of 81.85% mIoU on Cityscapes dataset with only finely annotated data used for training., Comment: Accepted to ICCV 2019

Published
2019

6. Grand Challenge of 106-Point Facial Landmark Localization

Author

Liu, Yinglu, Shen, Hao, Si, Yue, Wang, Xiaobo, Zhu, Xiangyu, Shi, Hailin, Hong, Zhibin, Guo, Hanqi, Guo, Ziyuan, Chen, Yanqin, Li, Bi, Xi, Teng, Yu, Jun, Xie, Haonian, Xie, Guochen, Li, Mengyan, Lu, Qing, Wang, Zengfu, Lai, Shenqi, Chai, Zhenhua, and Wei, Xiaoming

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Facial landmark localization is a very crucial step in numerous face related applications, such as face recognition, facial pose estimation, face image synthesis, etc. However, previous competitions on facial landmark localization (i.e., the 300-W, 300-VW and Menpo challenges) aim to predict 68-point landmarks, which are incompetent to depict the structure of facial components. In order to overcome this problem, we construct a challenging dataset, named JD-landmark. Each image is manually annotated with 106-point landmarks. This dataset covers large variations on pose and expression, which brings a lot of difficulties to predict accurate landmarks. We hold a 106-point facial landmark localization competition1 on this dataset in conjunction with IEEE International Conference on Multimedia and Expo (ICME) 2019. The purpose of this competition is to discover effective and robust facial landmark localization approaches., Comment: This paper is accepted at ICME2019 Grand Challenge. The JD-landmark dataset has been released and can be downloaded from https://sites.google.com/view/hailin-shi

Published
2019

22. Diverse CMT2 neuropathies are linked to aberrant G3BP interactions in stress granules

Author

Cui, Qinqin, primary, Bi, Hongyun, additional, Lv, Zhanyun, additional, Wu, Qigui, additional, Hua, Jianfeng, additional, Gu, Bokai, additional, Huo, Chanjuan, additional, Tang, Mingmin, additional, Chen, Yanqin, additional, Chen, Chongjiu, additional, Chen, Sihan, additional, Zhang, Xinrui, additional, Wu, Zhangrui, additional, Lao, Zhengkai, additional, Sheng, Nengyin, additional, Shen, Chengyong, additional, Zhang, Yongdeng, additional, Wu, Zhi-Ying, additional, Jin, Zhigang, additional, Yang, Peiguo, additional, Liu, Huaqing, additional, Li, Jinsong, additional, and Bai, Ge, additional

Published
2023
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25. Selective doping of a single ambipolar organic semiconductor to obtain P- and N-type semiconductors

Author

Chen, Yanqin, primary, Zhao, Lingli, additional, Chen, Ping-An, additional, Li, Yuhao, additional, Guo, Jing, additional, Liu, Yu, additional, Qiu, Xincan, additional, Xia, Jiangnan, additional, Chen, Kaixuan, additional, Chen, Huajie, additional, Lu, Xinhui, additional, Jiang, Lang, additional, Liao, Lei, additional, Nguyen, Thuc-Quyen, additional, and Hu, Yuanyuan, additional

Published
2022
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28. A self-blinking DNA probe for 3D superresolution imaging of native chromatin

Author

Zheng, Yang, primary, Ye, Sen, additional, Li, Shumin, additional, Liu, Cuifang, additional, Luo, Shihang, additional, Xia, Ruiqin, additional, Chen, Yanqin, additional, Li, Yunsheng, additional, Zhu, Zhenni, additional, Huang, Lingyi, additional, Deng, Shan, additional, Yuen, Karen Wing Yee, additional, Chen, Ping, additional, Zhang, Yongdeng, additional, Ji, Wei, additional, Luo, Ruibang, additional, Li, Guohong, additional, and Yang, Dan, additional

Published
2022
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31. Solution‐Processed CsPbBr 3 Quantum Dots/Organic Semiconductor Planar Heterojunctions for High‐Performance Photodetectors

Author

Chen, Kaixuan, primary, Zhang, Xuliang, additional, Chen, Ping‐An, additional, Guo, Jing, additional, He, Mai, additional, Chen, Yanqin, additional, Qiu, Xincan, additional, Liu, Yu, additional, Chen, Huajie, additional, Zeng, Zebing, additional, Wang, Xiao, additional, Yuan, Jianyu, additional, Ma, Wanli, additional, Liao, Lei, additional, Nguyen, Thuc‐Quyen, additional, and Hu, Yuanyuan, additional

Published
2022
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40. Stroke-associated pneumonia

Author

Chen, Yuanyuan, Yang, Hongyan, Wei, Hui, Chen, Yanqin, and Lan, Meijuan

Subjects
Stroke, bibliometric analysis, acute stroke, Bibliometrics, stroke-associated pneumonia, Observational Study, Humans, Pneumonia, worldwide trends, Research Article, Retrospective Studies
Abstract

Stroke-associated pneumonia (SAP) is a spectrum of pulmonary infections in patients within 7 days of stroke. Which is one of the most common complications after stroke and is significantly associated with a poor prognosis of stroke. To the best of our knowledge, a bibliometric method was not previously used to analyze the topic of SAP; we aim to describe the situation and evolution of SAP from 2003 to 2020, and to discuss the research hotspots and frontiers. A total of 151 articles were retrieved from the Scopus database. Bibliometric analysis was used to explore the dynamic trends of articles and the top subject areas, journals, institutes, citations, and co-keywords. VOS viewer software (version 1.6.15) was used to graphically map the hot topics of SAP based on the co-keywords. A total of 151 articles were identified. Articles have increased over the recent years and faster in the last 2 years (55 articles, 36.4%), the majority of subject areas are medicine (124 articles, 82.1%) and neuroscience (38 articles, 25.2%). The “Journal Of Stroke And Cerebrovascular Diseases” with 15 articles has been scored as the first rank followed by “Plos One.” Regarding the geographical distribution of articles, China is the most productive country with 50 articles (33.1%), others are more prominent in Europe, and most institutes are universities. Citations have increased over time, the main country of the top five highly cited published articles are Germany and before 2008. The co-keywords are mainly divided into four aspects: risk factors, predictive scores, preventions, and outcomes. This study could provide practical sources for researchers to find the top subject areas, journals, institutes, citations, and co-keywords. Moreover, the study could pave the way for researchers to be engaged in studies potentially lead to more articles in this field.

Published
2021

42. An Earlier Predictive Rollover Index Designed for Bus Rollover Detection and Prevention

Author

Tian, Shun, Wei, Lang, Schwarz, Chris, Zhou, WenCai, Jiao, Yuan, and Chen, YanQin

Subjects
Control systems, Accidents, Transportation industry
Abstract

As vehicle rollovers annually cause a great deal of traffic-related deaths, an increasing number of vehicles are being equipped with rollover prevention systems with the aim of avoiding such accidents. To improve the functionality of active rollover prevention systems, this study provided a potential enhanced method with the intention to predict the tendency of the lateral load transfer ratio (LTR), which is the most common rollover index. This will help provide a certain amount of lead time for the control system to respond more effectively. Before the prediction process, an estimation equation was proposed to better estimate the LTR; the equation was validated using Simulink and TruckSim. Further, to eliminate the influence of drawbacks and make this method practical, a buffer operator was added. Simulation results showed that grey LTR (GLTR) was able to roundly predict the future trend of the LTR based on current and previous data. Under the tests of 'Sine with Dwell' (Sindwell) and double lane change (DLC), the GLTR could provide the control system with sufficient time beforehand. Additionally, to further examine the performance of the GLTR, a differential system model was adopted to verify its effectiveness. Through the Sindwell maneuver, it was demonstrated that the GLTR index could improve the performance of the rollover prevention systems by achieving the expected response., 1. Introduction Among traffic issues, bus rollover is a huge problem for bus manufacturing enterprises and traffic administration. To solve this problem, researchers and engineers have developed many kinds of [...]

Published
2018
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43. Activities of daily living measurement after ischemic stroke

Author

Yang, Hongyan, Chen, Yuanyuan, Wang, Jianmiao, Wei, Hui, Chen, Yanqin, and Jin, Jingfen

Subjects
Male, applicability, Psychometrics, Observational Study, Rasch analysis, Reproducibility of Results, Middle Aged, Disability Evaluation, Surveys and Questionnaires, Activities of Daily Living, ischemic stroke, Humans, Female, modified Barthel Index, Prospective Studies, activities of daily living, Research Article, Ischemic Stroke
Abstract

In patients with ischemic stroke, activities of daily living were used as an outcome indicator, and correct assessment is very important. We sought to examine the reliability and validity of the modified Barthel Index as an evaluation tool of activities of daily living in ischemic stroke patients by applying the Rasch analysis. We used a prospectively collected cohort of ischemic stroke patients in the department of neurology. Rasch analysis was used for evaluating the reliability and validity of the modified Barthel Index. A total of 231 patients were included in the analysis. The average of modified Barthel Index was 36.2 ± 17.8. The modified Barthel Index had high reliability of 0.88. There were no extremely mismatched items, and considered unidimensional, but the Point-Measure of bowels and bladder were 0.27, extremely lower than other items. The scale was stable in different sex and age, but had notable differential item functioning in muscle strength of the limbs. Rating categories were not functioning adequately in items. The item difficulty and patient ability were not matched, with a difference of 1.17 logics. 29.4% patients, no easy items could match their ability. The modified Barthel Index had high reliability but a relatively bad matching degree between item difficulty and patient ability. It still needs further improvement to reflect the activities of daily living in ischemic stroke patients.

Published
2021

44. Solution‐Processed CsPbBr3 Quantum Dots/Organic Semiconductor Planar Heterojunctions for High‐Performance Photodetectors.

Author

Chen, Kaixuan, Zhang, Xuliang, Chen, Ping‐An, Guo, Jing, He, Mai, Chen, Yanqin, Qiu, Xincan, Liu, Yu, Chen, Huajie, Zeng, Zebing, Wang, Xiao, Yuan, Jianyu, Ma, Wanli, Liao, Lei, Nguyen, Thuc‐Quyen, and Hu, Yuanyuan

Subjects
ORGANIC semiconductors, QUANTUM dots, SEMICONDUCTOR devices, HETEROJUNCTIONS, PHOTODETECTORS, MANUFACTURING processes
Abstract

Planar heterojunctions (PHJs) are fundamental building blocks for construction of semiconductor devices. However, fabricating PHJs with solution‐processable semiconductors such as organic semiconductors (OSCs) is a challenge. Herein, utilizing the orthogonal solubility and good wettability between CsPbBr3 perovskite quantum dots (PQDs) and OSCs, fabrication of solution‐processed PQD/OSC PHJs are reported. The phototransistors based on bilayer PQD/PDVT‐10 PHJs show responsivity up to 1.64 × 104 A W−1, specific detectivity of 3.17 × 1012 Jones, and photosensitivity of 5.33 × 106 when illuminated by 450 nm light. Such high photodetection performance is attributed to efficient charge dissociation and transport, as well as the photogating effect in the PHJs. Furthermore, the tri‐layer PDVT‐10/PQD/Y6 PHJs are used to construct photodiodes working in self‐powered mode, which exhibit broad range photoresponse from ultraviolet to near‐infrared, with responsivity approaching 10−1 A W−1 and detectivity over 106 Jones. These results present a convenient and scalable production processes for solution‐processed PHJs and show their great potential for optoelectronic applications. [ABSTRACT FROM AUTHOR]

Published
2022
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45. 15-Lipoxygenase-2 Deficiency Induces a Dysfunction in Macrophages That Can Be Restored by Salidroside

Author

Huang, Rong Huang, primary, Li, Tingting Li, additional, Yong, Xi Yong, additional, Wen, Huling Wen, additional, Zhou, Xing Zhou, additional, Liao, Yichen Liao, additional, You, Jun You, additional, Yu, Chunlei Yu, additional, Xu, Peng Xu, additional, Wang, Yuquan Wang, additional, Wen, Dan Wen, additional, Xia, Tianqin Xia, additional, Yang, Hao Yang, additional, Chen, Yanqin Chen, additional, Xu, Lei Xu, additional, Zhong, Xiaorong Zhong, additional, Li, Xianfu Li, additional, Zhou, Chunyang Zhou, additional, and Xu, Zhengmin Xu, additional

Published
2021
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