Mode decision based adaptive GOP (group of pictures) distributed video coding and decoding method
A technology of distributed video, coding method, applied in the direction of digital video signal modification, television, electrical components, etc.
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[0067] The present invention will be further described below in conjunction with the accompanying drawings.
[0068] The self-adaptive frame group DVC system based on mode decision proposed by the present invention can be realized by software or embedded hardware system. figure 1 Provided the structural block diagram that the present invention proposes DVC system, wherein camera can be the video input terminal of some low-energy equipments such as mobile phone camera, sensing network camera; Encoder can be realized with software, general situation is DSP or other embedded parallel machine; the decoder is generally a high-performance PC, which can be a DSP or other embedded parallel machines; the network can be wired or wireless.
[0069] Encoder block diagram as figure 2 As shown, the encoder judges the frame mode of the input image, divides the frame into key frame, quasi-key frame, and WZ frame for adaptive frame group coding. Four block-based encoding modes are adopted: ...
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