METHOD OF AND APPARATUS FOR COMPRESSION ENCODING A PICTURE IN A PICTURE SEQUENCE

摘要

The present invention relates to a method of and apparatus for compression encoding of a picture in a picture sequence. In particular, the invention relates to a method of and apparatus for compression encoding of a picture in a picture sequence so as to maintain a good picture quality while providing compression coding and decoding with low latency. The invention provides a method of compression encoding a picture in a picture sequence in which the pictures in the picture sequence are coded as prediction coded pictures with a single reference picture and have at least two macroblock sets. One set is a refresh set in which the macroblocks are intra-picture coded. The decoded compression coded picture information used for compression coding picture information is decoded without use of a de-blocking filter.

主权项

1. A method of compression encoding a picture in a picture sequence comprising, for each macroblock of a plurality of macroblocks of picture information in the picture, the steps of:
determining whether the macroblock belongs to a refresh set for the picture; selecting first macroblock encoding processing or second macroblock encoding processing for the macroblock, wherein the second macroblock encoding processing is selected for all macroblocks determined to be in the refresh set; compression encoding picture information of the macroblock according to the selected first macroblock encoding processing or second macroblock encoding processing to form compressed picture information, using decoded picture information that has been decoded from previously compressed picture information without application of deblocking, wherein decoded picture information from a previous reference picture in the picture sequence is used during first macroblock encoding processing and decoded picture information from the current picture is used during second macro block encoding processing; and associating with compressed picture information of the picture: a de-blocking parameter indicating no de-blocking applied during compression decoding of compressed picture information; and reference picture parameter indicating use of a single reference picture in second macro block encoding processing.