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Algorithm for judging degree of concentration of students in class

A technology of concentration and students, applied in the field of image processing, can solve problems affecting teaching quality, lag in recording process, unable to correct problems in teaching in time, etc., to achieve the effect of improving teaching quality, timely detection, and saving teaching time

Inactive Publication Date: 2018-05-11
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] d) There is a lag in the recording process, and it is impossible to correct the problems in the teaching in time, which seriously affects the teaching quality

Method used

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  • Algorithm for judging degree of concentration of students in class
  • Algorithm for judging degree of concentration of students in class
  • Algorithm for judging degree of concentration of students in class

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Embodiment Construction

[0044] specific implementation

[0045] In order to simplify the calculation amount and improve the operation speed, this patent adopts a method of converting the three-dimensional stereo image of the concentration of the class into a two-dimensional plane. In the innovative part of this patent, three algorithms are used to judge the concentration of students. They are the algorithm for judging the concentration of the student's side face, the algorithm for judging the concentration of the student's low (raised) head, and the algorithm for judging the concentration of the student by the degree of eye opening and closing.

[0046] a) Device structure

[0047] like figure 1 As shown in the schematic diagram of the hardware device, the device adopts the scene commonly used by students in classroom photography.

[0048] b) Software algorithm

[0049] The software algorithm module is mainly composed of three parts: image acquisition, face recognition and facial feature recognit...

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Abstract

The invention relates to an algorithm for judging the degree of concentration of students in class. In the invention, an image is firstly taken by a camera commonly used in a classroom, human face detection is performed using the existing Matlab based on a Viola-Jones algorithm to obtain human facial features, and eyes are the facial features that most directly reflect the degree of concentrationof students in class. In the invention, the use of a nose as an auxiliary reference area takes into account that centers of the two eyes and the position of tip of nose can be approximated as a triangle. The human facial features are selected as reference objects to convert a three-dimensional space of a human face into a two-dimensional plane, so that the degree of concentration of the students can be judged faster. Finally, according to various statuses of the students in class, the degree of concentration of the students in class is determined by using three methods which are an algorithm for judging the degree of concentration of the students via side faces, an algorithm for judging the degree of concentration of the students with the head lowered (lifted), and an algorithm for judgingthe degree of concentration of the students through the opening degree of eyes.

Description

technical field [0001] The invention belongs to the technical field of image processing and a software algorithm module, and relates to a method for judging students' concentration in class. Background technique [0002] In the teaching process, the concentration of students in class is an important factor affecting students' performance and teaching effect, so it is the focus of many parents. At present, most schools use teachers' naked eyes to subjectively judge students' concentration in class. This method not only occupies teachers' class time and distracts teachers' attention, but also for students, the accuracy of naked-eye judgment is low, which leads to the effect of class. The evaluation results are not good. In particular, it is impossible to count and analyze the concentration of students in class in real time, resulting in considerable lag. Aiming at a series of classroom problems such as the problems that the students have in the course of class cannot be corr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06Q50/20
CPCG06Q50/20G06V40/165G06V40/171G06V40/18
Inventor 段巨力方子璇杨礼总
Owner ZHEJIANG GONGSHANG UNIVERSITY
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