Video image decoding device, video image coding device, video image decoding method and video image coding method

Video image decoding device, video image coding device, video image decoding method and video image coding method

  • CN 104,067,623 A
  • Filed: 01/09/2013
  • Published: 09/24/2014
  • Est. Priority Date: 01/19/2012
  • Status: Active Application
First Claim
Patent Images

1. a moving image decoding apparatus, is characterized in that, possesses:

  • Variable-length decoding unit, from coded data multiplexing bit stream, to with level the relevant packed data of each encoding block of having cut apart carry out variable-length decoding, and from described coded data, to representing the index of grade separation method of maximum sized encoding block unit and the bias of each grade of maximum sized each encoding block to carry out variable-length decoding as filtering parameter;

    Predicting unit, implements to generate predicted picture for the prediction processing of described encoding block;

    Difference image generation unit, from by described variable-length decoding unit variable-length decoding the relevant packed data of encoding block, generate the difference image before compression;

    Decoded picture generation unit, is added to generate decoded picture by the difference image that generated by described difference image generation unit with by the predicted picture that described predicting unit has generated;

    AndFilter unit, implements filtering processing to the decoded picture having been generated by described decoded picture generation unit, decoded picture after treatment filtering exported as reproduced picture,Described filter unit implements to use described grade separation method, according to maximum sized encoding block unit, the grade classification of the each pixel in the decoded picture of implementing to have been generated by described decoded picture generation unit, is added to the bias of each grade the adaptive-biased processing of pixel of the pixel value of the pixel that belongs to this grade.

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