Video optimized method and video optimizer is perceived for quality

Video optimized method and video optimizer is perceived for quality

  • CN 102,450,014 B
  • Filed: 03/31/2010
  • Issued: 07/14/2017
  • Est. Priority Date: 03/31/2009
  • Status: Active Grant
First Claim
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1. a kind of method video optimized for quality perception, including:

  • Receive encoded video frame;

    The encoded video frame received is decompressed;

    The first quantization parameter is extracted from decompressed video frame, wherein, the first quantization parameter is with being used primarily for encoded video frameThe quantization being compressed sets corresponding;


    quantization parameter is obtained based on first quantization parameter;

    Based on prior decompression contract frame total byte size and prior compression after frame total byte size between comparison comeObtain to expand and adjust, wherein the expansion adjustment, which is used to compensate, the byte of period introducing is being optimized to decompressed video frameExpanded in size, wherein, the frame of encoded video frame and the prior decompression contracting received is one of the sequence for including multiple frame of videoPoint;

    Second quantization parameter is obtained based on the Δ

    quantization parameter, first quantization parameter and the expansion adjustment, whereinSecond quantization parameter is corresponding with the quantization setting for being compressed to decompressed video frame, and wherein described secondQuantization parameter is different from the Δ

    quantization parameter;

    Decompressed video frame is compressed based on second quantization parameter;

    AndCompressed frame of video is provided.

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