Virtual micro-classroom performance broadcasting system and device

Abstract

The invention discloses a virtual micro-classroom performance broadcasting system, and relates to the technical field of performance broadcasting. The system comprises an intelligent blackboard, a high-definition camera, a reverse viewing system, an audio acquisition device, a virtual and real performance recording and broadcasting system and a resource management platform, wherein the intelligentblackboard is used for a teacher to play teaching PPT for teaching explanation; the high-definition camera is used for recording PPT played by the intelligent blackboard and teacher images; the audioacquisition device is used for acquiring the voice of teachers; the audio acquisition device is used for being connected with a wireless audio system; and the output end of the wireless audio systemis connected with the virtual and real performance recording and broadcasting system. The virtual and real performance recording and broadcasting system comprises a screen recording and image mattingmodule and an image matting synthesis module; and the virtual and real performance recording and broadcasting system is connected with the resource management platform. According to the invention, bydesigning a set of true three-dimensional micro-class MOOC system, high-quality recording and packaging are completed quickly, heavy class recording tasks are greatly reduced, and the quality and appreciation of video courseware are improved.

Description

technical field [0001] The invention belongs to the technical field of broadcasting, and in particular relates to a virtual micro-classroom broadcasting system and device. Background technique [0002] With the continuous development of the field of electronic communication, this new teaching mode with micro-video as the core has attracted widespread attention from educational researchers and front-line teachers. The main carrier records the whole process of wonderful teaching and learning activities carried out by teachers around a certain knowledge point (key, difficult and doubtful points) or teaching links in the process of education and teaching inside and outside the classroom. [0003] Educational authorities in various places have organized teachers to carry out teaching and research activities on the theme of micro-class construction and review, but most teachers are faced with "difficult shooting, difficult post-editing and processing technology, difficult formatio...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a virtual micro-classroom broadcasting system, by using the courseware content as the background signal and the camera content as the foreground signal, and sending the teaching video synthesized by the foreground and the background to the resource management platform for students to browse and learn. In the existing virtual recording and broadcasting, the brightness of the electronic whiteboard and the characters are inconsistent, the course recording process is cumbersome, and the effect is not good.

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