Student class attending rate detection method
A detection method and student technology, applied in the field of teaching management, can solve the problems of unable to detect and count students' learning status, affecting the uncertainty of classroom teaching progress, and unsatisfactory monitoring video
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[0026] The present invention will be further described below in conjunction with the accompanying drawings.
[0027] First, the personal attendance rate is the response to the status of a student in the class during classroom teaching and other activities. It is obtained by the ratio of the total time of the student in the head-up state to the total time of teaching activities.
[0028] Second, the attendance rate of the whole class refers to the proportion of all students in a class who pay attention to the class in the classroom teaching activities. The ratio to the total number of people is obtained.
[0029] Third, the state of raising the head, that is, by processing the image, the ratio p of the area covered by the human hair in the image to the total area of the head area is calculated and judged by its relationship with the preset threshold to determine whether the student is looking up state. In the same way, there is a head-down state opposite to it, which is pr...
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