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Online invigilation remote video cheating determination system and method

A remote video, research and judgment technology, applied in the field of video recognition, can solve problems such as the inability to accurately judge students’ cheating behaviors and the waste of invigilation resources, and achieve the effects of real-time and accurate invigilation, reduced labor costs, and fast image processing

Inactive Publication Date: 2020-12-15
哈尔滨二进制信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the fact that it is impossible to accurately judge whether there is cheating in the examination process of students in the prior art, and the waste of invigilation resources, the present invention proposes an online invigilation remote video cheating research and judgment system and method. The specific invention scheme is as follows:

Method used

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  • Online invigilation remote video cheating determination system and method

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specific Embodiment approach 1

[0035] Specific implementation mode 1: In conjunction with the description of Figure 1-2, an online invigilation remote video cheating research and judgment system of the present invention, the specific implementation process is as follows:

[0036] The system includes a video acquisition module, a video stream synthesis module, a video push module, a judgment center server, and an invigilator terminal. The judgment center server includes a video analysis module, a video stream judgment cheating module, and a suspected cheating notification module. Each module is in the above logical order. Submit to further levels of implementation;

[0037] Among them, the video acquisition module is connected with the video stream synthesis module through wireless signals; the video stream synthesis module establishes a connection with the research and judgment center server through remote data transmission; the research and judgment center server is wirelessly connected with the invigilator...

specific Embodiment approach 2

[0040] Specific implementation mode 2: In combination with the description of Figure 1-2, the specific implementation process of an online invigilation remote video cheating research and judgment method is as follows:

[0041] Step 1: The server of the research and judgment center obtains and stores the synthesized multi-screen video stream transmitted remotely in real time. The video stream comes from the video data obtained from the examinee's main station and multiple auxiliary station devices;

[0042] Step 2: Filter the image (action, posture, line of sight) feature points for each picture in the video stream;

[0043] Step 3: Determine and mark the stored feature points as suspected cheating;

[0044] Step 4: Push the video equipment terminal corresponding to the video stream marked as suspected cheating to the invigilator terminal.

specific Embodiment approach 3

[0045] Embodiment 3: In addition to the online invigilation remote video cheating method described in Step 1 of Embodiment 2, it also includes performing image output and storage of the video stream in the form of video frames, and then extracting single-screen images from the output multi-screen images. Finally, the extracted image is subjected to feature classification, including main position and auxiliary position, and image data;

[0046] Use ffmpeg to realize the video splicing task, and use the demuxer in ffmpeg to splice the input multi-channel video. The splicing based on the demuxer requires exactly the same video and audio attributes. This method will not cause decode->encode to the video and audio streams. influences;

[0047] Use opencv's built-in face recognizer to judge the authenticity of candidates, and use opencv's classic visual tracking algorithm camshift algorithm to track the vision to judge whether the eyes are focused on the test paper.

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Abstract

The invention discloses an online invigilation remote video cheating determination system and method, particularly relates to remote video cheating determination, belongs to the field of video recognition, and aims to solve the problems that in the prior art, whether cheating behaviors exist in the examination process of students or not cannot be accurately determined, and invigilation resources are wasted. The method comprises the steps that a plurality of cameras at a main position and an auxiliary position collect video streams and input the video streams into the same processing device; the processing device synthesizes the video streams and transmits the synthesized video stream to an Internet cheating determination center server of the Internet through the Internet; and the determination center server recognizes the video stream according to video content acquired on site, determines whether cheating occurs or not according to actions, postures and sight ranges of students in thevideo in the recognition process, and finally pushes the information of suspected students to an invigilation teacher terminal. Through video remote recognition, whether cheating behaviors exist in the student examination process or not is effectively determined, and due to remote image processing and system reminding, invigilation resources are saved, and the invigilation process is real-time and accurate.

Description

technical field [0001] The invention relates to an online invigilation remote video cheating research and judgment system and method, in particular to remote video cheat research and judgment, and belongs to the field of video recognition. Background technique [0002] The present invention is a method for researching and judging whether examinees have suspected cheating actions in a video under the scene of invigilation. In the processing equipment, the video is synthesized and transmitted to the cheating research and judgment center server on the Internet through the network. The research and judgment center server then performs video stream recognition based on the video content collected on the spot. The recognition process is carried out according to the examinee's actions, postures and sight range Judgment of whether cheating, and finally push the information of students who are suspected of cheating to the invigilator. [0003] With the rise of online learning and va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00H04N7/18
CPCH04N7/18G06V40/172G06V20/52
Inventor 徐福龙鞠辰
Owner 哈尔滨二进制信息技术有限公司
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