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Wenjing Shi
University of New Mexico
2Publications
Publications 2
Newest
Published on Oct 1, 2018
Wenjing Shi (UNM: University of New Mexico), Marios S. Pattichis25
Estimated H-index: 25
(UNM: University of New Mexico)
+ 1 AuthorsCarlos LopezLeiva2
Estimated H-index: 2
(UNM: University of New Mexico)
We introduce a new method to detect student group interactions in collaborative learning videos. We consider the following video activities: (i) human to human, (ii) human to others, and (iii) lack of any interaction. The system uses multidimensional AM-FM methods to detect student faces, hair, and then use the results to detect possible interactions. We use dynamic graphs to represent group interactions within each video. We tested our methods with 15 videos and achieved an 84% accuracy for stu...
Published on Apr 1, 2018
Wenjing Shi (UNM: University of New Mexico), Marios S. Pattichis25
Estimated H-index: 25
(UNM: University of New Mexico)
+ 1 AuthorsCarlos LopezLeiva2
Estimated H-index: 2
(UNM: University of New Mexico)
The paper introduces the problem of robust head detection in collaborative learning environments. In such environments, the camera remains fixed while the students are allowed to sit at different parts of a table. Example challenges include the fact that students may be facing away from the camera or exposing different parts of their face to the camera. To address these issues, the paper proposes the development of two new methods based on Amplitude Modulation-Frequency Modulation (AM-FM) models...
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