Objective To develop video analysis subsystem for analyzing the food processing violations, in order to improve the food safety risk prevention ability of university restaurants. Methods The composition of the video analysis subsystem and the main working process of the violation analysis process were introduced. The basic principle, main formula and algorithm flow of video analysis algorithm for detecting 2 typical violations (non-working clothes and raw meat processed on vegetarian chopping board) were elaborated. A large number of tests were conducted on 2 typical irregularities. Results The video analysis system established in this study was 99% accurate in detecting the behaviors of employees without working clothes, and 98% accurate in detecting the behaviors of employees processing raw meat on the vegetarian chopping board. Conclusion The developed video analysis subsystem can improve the ability to prevent food safety risks.
标题：高校餐厅食品加工违规行为视频分析算法与系统设计
英文标题：Algorithm and system design of video analysis for the violations in food processing in university restaurants
