A Classroom Population Counting Method

Abstract

The invention relates to a method for counting the number of people in a classroom, which includes: establishing a background model in the state of no one in the classroom, and establishing a binary model of the upper body edge of a human body; performing an expansion operation on the binary foreground image to obtain a possible human body activity area; searching for the The binary peak point in the binary foreground image is added to the head detection set; the binary model of the upper body edge of the human body is compared with the edge image in the window after each sliding, and the upper body area of ​​the human body greater than the threshold is added to the human body detection set ; Combining the overhead detection set and the human body detection set, the cluster analysis method is used to count the number of people, that is, to realize the counting of the number of people in the current frame. The invention has a small amount of computation and high accuracy of counting the number of people, and can have a statistical effect on people who are sitting quietly or walking in the classroom, which is beneficial to the rational distribution of classroom resources and the intelligent management of electrical equipment, and has a wide range of advantages. application prospects.

Description

technical field [0001] The present invention relates to the field of image processing and pattern recognition, in particular to a method and system for counting the number of people in a classroom that is processed by collecting classroom images through a classroom camera. Background technique [0002] In college classrooms or self-study rooms, there is generally a camera monitoring system. The classroom pictures collected by the camera are used to count the number of people in the classroom, which is beneficial for students to understand the status of the classroom, facilitates students to choose a self-study room, and improves efficiency. ; It is conducive to the centralized control of classroom teaching electrical equipment and reduces the waste of resources. [0003] Chinese patent application CN 102184241 discloses a classroom status query system and its statistical method. The people counting method used in this system mainly uses the dynamic recognition method to coun...

AI Technical Summary

Problems solved by technology

[0004] First, it does not involve the classroom template update method, which will affect the subsequent process of counting people;

[0005] Second, the camera shooting picture moves with the gimbal, which will have an impact on the process of counting the moving human body by the dynamic recognition method;

[0006] Third, the people counting method is more complicated, because the image information of multiple classrooms needs to be processed at the same time, and the complicated method will affect the real-time performance

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