Proceedings of the 2022 3rd International Conference on Big Data and Informatization Education (ICBDIE 2022)

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Teacher Attention Analysis Method Based on Face Three-Dimensional Feature Point Coordinate Transformation and Viewpoint Visualization and Applications

Authors
Bing Gong1, *
1Information Engineering School, Eurasia University, Xi’an, People’s Republic of China
*Corresponding author. Email: gongbing@eurasia.edu
Corresponding Author
Bing Gong
Available Online 23 December 2022.
DOI
10.2991/978-94-6463-034-3_55How to use a DOI?
Keywords
classroom teaching; face three-dimensional feature point; coordinate transformation; viewpoint visualization; teacher attention analysis
Abstract

In the process of quantitative analysis of classroom teaching, it is often necessary to evaluate individual indicators related to attention such as “whether teachers’ teaching attracts students, whether they stimulate learning enthusiasm” and “whether there is eye contact between teachers and students”. The teacher’s attention to the students reflects the teacher’s teaching state and teaching psychology, and meets the requirements of observability, repeatability and interpretability of quantitative analysis of the classroom teaching process. In this paper, the method of mutual conversion and mapping between natural coordinates and classroom coordinates is used to project the face normal of the student’s nose tip to the teacher’s teaching video shot by the rear camera. The intersection of the rays in the classroom coordinate system on the camera plane must be calculated first, and then calculate the mapping point coordinates of the intersection in the teacher coordinate system. Finally, the viewpoint visualization in classroom teaching is realized.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2022 3rd International Conference on Big Data and Informatization Education (ICBDIE 2022)
Series
Atlantis Highlights in Computer Sciences
Publication Date
23 December 2022
ISBN
978-94-6463-034-3
ISSN
2589-4900
DOI
10.2991/978-94-6463-034-3_55How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Bing Gong
PY  - 2022
DA  - 2022/12/23
TI  - Teacher Attention Analysis Method Based on Face Three-Dimensional Feature Point Coordinate Transformation and Viewpoint Visualization and Applications
BT  - Proceedings of the 2022 3rd International Conference on Big Data and Informatization Education (ICBDIE 2022)
PB  - Atlantis Press
SP  - 536
EP  - 545
SN  - 2589-4900
UR  - https://doi.org/10.2991/978-94-6463-034-3_55
DO  - 10.2991/978-94-6463-034-3_55
ID  - Gong2022
ER  -