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Method and system for synthesizing teaching video

A synthesis method and technology for teaching video, applied in the field of teaching, can solve problems such as lack of focus, unsightly video, and cluttered shooting pictures, and achieve the effect of reducing hardware costs

Active Publication Date: 2022-03-01
浙江蓝鸽科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only the cost is high, but also the pictures captured by each camera are messy, the key points are not prominent, and the synthesized video is not beautiful, etc.

Method used

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  • Method and system for synthesizing teaching video
  • Method and system for synthesizing teaching video
  • Method and system for synthesizing teaching video

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Embodiment Construction

[0086] In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that the technical solutions claimed in this application can be realized even without these technical details and various changes and modifications based on the following implementation modes.

[0087] Explanation of some concepts:

[0088] Valid area: A closed area with a complete sub-blackboard in the blackboard area.

[0089] Invalid area: In the blackboard area, a sub-blackboard is partially or completely blocked by other sub-blackboards, resulting in incomplete writing on the blackboard and a closed area that cannot be recognized.

[0090] Non-blackboard area: In the blackboard area, the area exposed after the factor blackboard is pulled apart.

[0091] Effective frame: The updated image frame of the blackboard writing is generated in the online classroom video.

[0092] In order to ma...

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PUM

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Abstract

This application relates to the teaching field, and discloses a teaching video synthesis method and system. The method includes: acquiring a first camera video and a computer screen video, the shooting range of the first camera covers the blackboard area and the teacher's activity area on the podium, and the computer screen is used for playing teaching courseware; determining the picture of blackboard writing on the blackboard according to the first camera video ; Synthesize the first camera video, the computer screen video and the blackboard writing picture into a synthetic video comprising a large picture and a first small picture, wherein the large picture is used to switch and play the blackboard writing picture and the teaching according to preset rules In the courseware screen, the first small screen is used to play the first camera video. The synthesized video in the embodiment of the present application highlights the teaching content to a greater extent while recording the teaching process, and can better meet the learning needs of users.

Description

technical field [0001] This application relates to the field of teaching, in particular to the synthesis technology of teaching videos. Background technique [0002] The core function of online classroom, recording and broadcasting products is to synthesize multiple original videos collected by cameras and teacher teaching computer screens into one video according to the needs of users. [0003] At present, the existing synthetic video focuses on recording the teaching process; moreover, it is common to record teaching behavior videos in different shooting areas through multiple camera positions, and then perform composite processing. Not only the cost is high, but also the pictures taken by each camera are messy, the focus is not prominent, and the synthesized video is not beautiful. Contents of the invention [0004] The purpose of this application is to provide a teaching video synthesis method and system, so that the synthesized video can record the teaching process w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/265H04N5/268G09B5/02
CPCH04N5/265H04N5/268G09B5/02
Inventor 张新华王朝选申会强吴高峰
Owner 浙江蓝鸽科技有限公司