Real-time Key Frame Selection Method in Mine Wireless Distributed Video Coding
A distributed video and key frame technology, applied in the fields of digital video signal modification, electrical components, image communication, etc., can solve the problems of loss of video content, large content changes, redundancy, etc., to improve selection quality, avoid missed selection, Satisfy the effect of image content changes
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[0024]The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0025] Such as figure 1 As shown, aiming at the physical environment of low illumination, severe electromagnetic interference, and inflammable and explosive mines, the present invention provides a method for real-time selection of key frames in mine wireless distributed video coding, which includes the following steps:
[0026] 1) Construct the incremental change curve of inter-frame characteristics, describe the degree of difference between video image frames, and provide a calculation model for the selection of key frames: calculate the comprehensive characteristic similarity measure of adjacent frames in the video sequence, and then construct the inter-frame characteristic incremental change curve. volume change curve.
[0027] 2) After obtaining the inter-frame feature difference incremental change curve, use the key frame real-time selection algo...
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