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528 results on '"Li, Guofang"'

3. A Lightweight Recurrent Grouping Attention Network for Video Super-Resolution

Author

Zhu, Yonggui and Li, Guofang

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Effective aggregation of temporal information of consecutive frames is the core of achieving video super-resolution. Many scholars have utilized structures such as sliding windows and recurrent to gather spatio-temporal information of frames. However, although the performance of the constructed VSR models is improving, the size of the models is also increasing, exacerbating the demand on the equipment. Thus, to reduce the stress on the device, we propose a novel lightweight recurrent grouping attention network. The parameters of this model are only 0.878M, which is much lower than the current mainstream model for studying video super-resolution. We design forward feature extraction module and backward feature extraction module to collect temporal information between consecutive frames from two directions. Moreover, a new grouping mechanism is proposed to efficiently collect spatio-temporal information of the reference frame and its neighboring frames. The attention supplementation module is presented to further enhance the information gathering range of the model. The feature reconstruction module aims to aggregate information from different directions to reconstruct high-resolution features. Experiments demonstrate that our model achieves state-of-the-art performance on multiple datasets.

Published
2023

12. Cover

Author

Li, Guofang

Published
2006

13. Index

Author

Li, Guofang

Published
2006

14. References

Author

Li, Guofang

Published
2006

37. A Novel Dual Dense Connection Network for Video Super-resolution

Author

Li, Guofang and Zhu, Yonggui

Subjects
Electrical Engineering and Systems Science - Image and Video Processing, Computer Science - Computer Vision and Pattern Recognition, Computer Science - Machine Learning
Abstract

Video super-resolution (VSR) refers to the reconstruction of high-resolution (HR) video from the corresponding low-resolution (LR) video. Recently, VSR has received increasing attention. In this paper, we propose a novel dual dense connection network that can generate high-quality super-resolution (SR) results. The input frames are creatively divided into reference frame, pre-temporal group and post-temporal group, representing information in different time periods. This grouping method provides accurate information of different time periods without causing time information disorder. Meanwhile, we produce a new loss function, which is beneficial to enhance the convergence ability of the model. Experiments show that our model is superior to other advanced models in Vid4 datasets and SPMCS-11 datasets.

Published
2022

38. Introduction

Author

Li, Guofang, primary, Marom, Lilach, additional, Anderson, Jim, additional, Hare, Jan, additional, and McTavish, Marianne, additional

Published
2021
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40. In and Out of the Unknown: Lessons from Immigrant Families Promoting Multiliteracies during the COVID-19 Pandemic

Author

Li, Guofang and Lin, Zhen

Abstract

How has the COVID-19 pandemic changed the home literacy environment, parental engagement, and home-school communications for children and families from culturally and linguistically diverse backgrounds? Data on the experiences of 231 Chinese-Canadian immigrant families with K-2 children revealed that emergency remote learning affected the home literacy environment in complex ways. While some experienced a decrease in mainstream language exposure, others also witnessed a decline in home language use and literacy engagement due to the closure of heritage language schools and absence of grandparents. Parents also differed in their ability, resources, and confidence level in supporting multiliteracies development at home during the pandemic. Moreover, there existed persistent barriers to effective home-school communications despite the affordances of remote learning. The findings have important implications for both immigrant families and mainstream teachers in working collaboratively to support the children's needs in multiliteracies development.

Published
2023
Full Text
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48. In and Out of the Unknown: Lessons from Immigrant Families Promoting Multiliteracies During the COVID-19 Pandemic

Author

Li, Guofang and Lin, Zhen

Subjects
Epidemics -- Influence -- Educational aspects -- United States, Intercultural education -- Methods, Literacy programs -- Demographic aspects, Education, Languages and linguistics
Abstract

How has the COVID-19 pandemic changed the home literacy environment, parental engagement, and home-school communications for children and families from culturally and linguistically diverse backgrounds? Data on the experiences of 231 Chinese-Canadian immigrant families with K-2 children revealed that emergency remote learning affected the home literacy environment in complex ways. While some experienced a decrease in mainstream language exposure, others also witnessed a decline in home language use and literacy engagement due to the closure of heritage language schools and absence of grandparents. Parents also differed in their ability, resources, and confidence level in supporting multiliteracies development at home during the pandemic. Moreover, there existed persistent barriers to effective home-school communications despite the affordances of remote learning. The findings have important implications for both immigrant families and mainstream teachers in working collaboratively to support the children's needs in multiliteracies development. Byline: Guofang Li, Zhen Lin

Published
2023

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