摘 要：微格教室专门用于教师的微格教学。微格教室中视频技术的辅助应用设计，主要包括两个方面：其一是采用视频跟随技术锁定老师在画面中的位置，进而实时调整摄像头跟踪拍摄老师授课；其二是利用人工智能技术分析教师的授课表情。借助视频处理技术，可在微格教室录制并分析教师的教学情况，便于后续回溯和分析，对提高教师的授课技能和水平有重要意义。
关键词：目标检测；目标跟踪；表情识别；人工智能
DOI:10.19850/j.cnki.2096-4706.2021.10.021
中图分类号：TP391.4 文献标识码：A 文章编号：2096-4706（2021）10-0084-04
Design of Video Aided System for Micro-classroom
HE Shan
（Chengdu Jincheng College，Chengdu 611731，China）
Abstract：Micro-classroom is specially used for microteaching of teachers. The auxiliary application design of video technology in micro-classroom mainly includes two aspects：one is to use video following technology to lock the teacher’s position in the picture，and then adjust the camera to track and shoot the teacher’s teaching in real time；the second is to use artificial intelligence technology to analyze teachers’teaching expression. With the help of video processing technology，teachers’teaching can be recorded and analyzed in microclassroom，which is convenient for follow-up tracing and analysis，and is of great significance to improve teachers’teaching skill and level.
Keywords：object detection；object tracking；expression recognition；artificial intelligence
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作者简介：何山（1987—），女，汉族，四川成都人，教师， 硕士，研究方向：图像处理、嵌入式开发。