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An online education method, system, device and storage medium

A technology of teachers and connected areas, applied in the field of computer vision, can solve the problems of ineffective use of transmission data, large amount of video data transmission, and high cost

Active Publication Date: 2021-09-14
深圳市中鹏教育科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional online education video data transmission efficiency is low, the video data transmission volume is large, and the cost is high, which cannot meet the needs of a large number of students; and the fast, convenient and efficient transmission of remote video information is currently very necessary
Moreover, the traditional video transmission is to transmit all the data, and cannot effectively utilize the structural characteristics of the transmitted data; therefore, a real-time, fast, and reduced invalid data transmission has become an urgent need, thereby improving the user experience.

Method used

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  • An online education method, system, device and storage medium
  • An online education method, system, device and storage medium
  • An online education method, system, device and storage medium

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Experimental program
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Embodiment 1

[0039] The present invention provides an online education method, system, equipment and storage medium. According to the structural characteristics of the course video, the present invention only transmits the image data in the significant change area, and retains the original image in the area without significant change, which greatly reduces the transmission cost. The amount of data, and significantly improve the efficiency of data transmission;

[0040] refer to figure 1 , which shows a flowchart of an online education method provided by an embodiment of the present application, including steps:

[0041] S100, the camera collects the teacher's lecture video stream data in real time;

[0042] S200, starting from the second frame, calculate the difference degree matrix H between the nth frame and the previous frame of video images in real time n ,

[0043]

[0044] in, Represents the difference between the R value matrix of the R channel of the nth frame and the n-1th...

Embodiment 2

[0055] The invention also discloses an online education system, including:

[0056] The acquisition module is used for the camera to collect the teacher's lecture video stream data in real time; starting from the second frame, the difference matrix H between the nth frame and the previous frame video image is calculated in real time n ,

[0057]

[0058] in, Represents the difference between the R value matrix of the R channel of the nth frame and the n-1th frame of the video RGB image, Represents the difference between the G value matrix of the G channel of the nth frame and the n-1th frame of the video RGB image, Represents the difference between the B value matrix of the B channel of the nth frame and the n-1th frame of the video RGB image, , , are the matrix scale coefficients of R channel, G channel and B channel respectively;

[0059] The traversal module is used to traverse the matrix H n , record the area position information set S1 whose elements in th...

Embodiment 3

[0072] refer to figure 2 , showing a computer device for an online education method of the present application, which may specifically include the following:

[0073] The above-mentioned computer device 12 is in the form of a general-purpose computing device. The components of the computer device 12 may include, but are not limited to: one or more processors or processing units 16, memory 28, and connections to different system components (including memory 28 and processing unit 16) bus 18.

[0074] The bus 18 represents one or more of several types of bus 18 structures, including a memory bus 18 or memory controller, a peripheral bus 18, an accelerated graphics port, a processor, or a bureau using any of a variety of bus 18 structures. domain bus 18. These architectures include, by way of example, but are not limited to Industry Standard Architecture (ISA) bus 18, Micro Channel Architecture (MAC) bus 18, Enhanced ISA bus 18, Video Electronics Standards Association (VESA) l...

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Abstract

The application provides an online education method, system, device and storage medium, comprising the steps of: the camera collects the video stream data of the teacher's lecture in real time; starting from the second frame, the difference matrix between the nth frame and the previous frame video image is calculated in real time Hn; traverse matrix Hn; select the RGB video image information corresponding to the area position information set S1 of the nth frame image as the data subset set S2; use the RGB video image information of the nth frame video image change degree greater than the threshold value W as the data subset Set S3: Perform MPS encoding on the data subset set S3, and transmit the obtained structured data to the client. The present invention realizes the data transmission only for the area where the video image changes significantly, and retains the original image in the area where no significant change occurs, which greatly reduces the amount of transmitted data, and significantly improves the data transmission efficiency. The calculation method of the area greatly speeds up the speed of image data selection.

Description

technical field [0001] The application relates to the technical field of computer vision, and specifically relates to an online education method, system, equipment and storage medium. Background technique [0002] At present, with the increasing scale of online education short video or real-time video, higher requirements are put forward for data transmission bandwidth. Real-time video or short video can allow users to conduct relevant course training in real time anytime and anywhere. The smoothness of video playback is closely related to the speed of network transmission and the amount of transmitted data. Especially during the epidemic, online education has become more popular in distance education and has played an important role in distance learning. [0003] However, the traditional online education video data transmission is inefficient, the video data transmission volume is large, and the cost is high, which cannot meet the needs of a large number of students; and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/137H04N19/186H04N19/503
CPCH04N19/137H04N19/186H04N19/503
Inventor 高德平
Owner 深圳市中鹏教育科技股份有限公司