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Teaching video system

A video recording system and video recording technology, applied in signal transmission systems, TV system components, image communication, etc., can solve problems such as prone to misjudgment, single judgment conditions, and inability to cover key points of knowledge, so as to save hardware costs and be universal Strong performance and labor cost saving effect

Active Publication Date: 2016-05-11
STATE GRID FUJIAN ELECTRIC POWER CO LTD +3
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  • Claims
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Problems solved by technology

The disadvantage is that the judgment conditions are single, and misjudgment is prone to occur. For example, the teacher is standing in area B where the whiteboard is located, but is using a laser pointer to point out the knowledge points on the screen in area A. However, judging by the face tracking conditions, only the area is recorded at this time B, the recorded video cannot cover the knowledge points being displayed in area A

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  • Teaching video system

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Embodiment Construction

[0024] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0025] The present invention provides a teaching video system, which provides a contact-sensing teaching whiteboard and a projection screen, and the area where the projection screen is located is recorded as the first area, and the area where the contact-sensing teaching whiteboard is located is recorded as the second area , recording the area including the projection screen and the touch-sensitive teaching whiteboard as the third area, including: a video recording module, an image recognition module, and a system control module; the system control module is connected to the The video recording unit, the image recognition module and the control unit of the touch-sensitive teaching whiteboard are connected; the video recording unit is connected to the image recognition module; the video recording unit performs image acquisition on the proje...

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Abstract

The invention relates to a teaching video system, comprising a video recording module, an image recognition module and a system control module, wherein the system control module is respectively connected with the video recording unit, the image recognition module and a control unit of a contact induction type teaching whiteboard; a video recording unit is connected with the image recognition module; the video recording unit collects an image from a projection curtain and transmits the information of the collected image to the image recognition module; the image recognition module processes and calculates the information of the collected image, detects whether a laser spot signal exists on the projection curtain or whether a teacher is front of the projection curtain, correspondingly generates a laser spot trigger signal or a projection curtain shielding trigger signal and sends the same to the system control module; and the system control module communicates with the control unit of the contact induction teaching whiteboard to obtain a contact induction signal uploaded by the contact induction teaching whiteboard in real time, and judges the two signals to determine or switch a camera area.

Description

technical field [0001] The invention relates to a teaching video recording system. Background technique [0002] When traditionally recording teaching videos, there are two teaching areas that need to be taken into account. One is area A where the curtain is located, which displays multimedia courseware, videos and other materials used in teaching through projection; the other is area B where the teaching whiteboard is located. and other forms of auxiliary teaching. Therefore, when recording a teaching video, it is necessary to switch among 3 scenes: area A, area B, and area C including A and B. [0003] The schemes and deficiencies currently adopted to solve this problem are: [0004] 1. Equipped with multiple cameras, record 3 scenes at the same time. After the lecture, manually analyze the 3 videos and edit them according to the lecture content. The disadvantage is that the cost of equipment investment is high, each classroom needs to install multiple cameras, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/76G08C17/02
CPCG08C17/02H04N5/76
Inventor 林宇谢秋平陈铭沈喜木
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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