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Online examination system anti-cheating method based on pupil tracking

An examination system and pupil tracking technology, applied in the field of image processing, can solve the problems of cumbersome and unrealistic candidates, and achieve the effect of saving human resources and preventing cheating methods flexibly and effectively

Pending Publication Date: 2021-10-19
XIAN UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires candidates to be equipped with panoramic smart devices, which is not realistic for most candidates
Moreover, this method requires a series of inspections such as the adjustment of the equipment angle by the inspectors before the examination, which is relatively cumbersome.

Method used

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  • Online examination system anti-cheating method based on pupil tracking
  • Online examination system anti-cheating method based on pupil tracking
  • Online examination system anti-cheating method based on pupil tracking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] In this example, a simulation experiment of system anti-cheating is carried out, and pupil monitoring analysis is performed on cheating behavior and non-cheating behavior in the experiment. The specific process is as follows:

[0080] The head is 30 cm away from the screen horizontally. While keeping still, click the gaze points in the upper left corner, upper right corner, lower left corner, and lower right corner of the screen to mark them. The time difference between the two points is more than 1s. After clicking, the fixation point disappears, indicating that the point mark is completed. During the marking process, according to the change of the pupil position, the midpoint C of the line connecting the pupils of both eyes is taken as the sight point, and the coordinate positions of the sight point when gazing at the four corners of the screen are obtained. by draw lines, where (i=1, 2, 3, 4) represent the coordinate values ​​of the fixation point when the upper...

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Abstract

The invention discloses an online examination system anti-cheating method based on pupil tracking, and belongs to the field of image processing. The invention provides a pupil tracking invigilation method, which aims at solving the problem that online invigilation is not in place by an existing examination anti-cheating method in an online system, and comprises the following steps of: 1, acquiring pupil positions; 2, calibrating a screen range; 3, constructing a vector relation between a screen range and a binocular focus position range; and 4, tracking pupils and judging whether cheating behaviors exist or not. According to the method, whether cheating behaviors exist or not is judged by tracking the pupils and utilizing the image frame difference information, waste of human resources is reduced, and meanwhile the method is more accurate.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an anti-cheating method based on pupil tracking technology. Background technique [0002] Aiming at the problem of anti-cheating in the online examination system, many online examination platforms have proposed various methods to deal with it. For example, methods such as locking the screen and shielding hotkeys are commonly used to prevent students from cheating by switching search engines during the exam; moreover, by setting up dual-camera positions in front and behind the students, through the dual-camera positions, different Observe student behavior from different angles, and teachers invigilate the whole process to prevent students from cheating. [0003] In 2008, Tao Xia and Chen Hongliang proposed an algorithm to prevent cheating. In order to solve the problem that candidates can easily see other people's answers due to their close seats, starting from changing the tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/40G06K9/46G06Q50/20
CPCG06Q50/205
Inventor 曹小鹏燕霞
Owner XIAN UNIV OF POSTS & TELECOMM
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