Conformance Test for MPEG-4 Shape Decoders

MPEG-4 Shape Decoder의 적합성 검사

  • 황혜전 (이화여자대학교 정보통신학과) ;
  • 박인수 (서강대학교 전자공학과) ;
  • 박수현 (이화여자대학교 정보통신학과) ;
  • 이병욱 (이화여자대학교 정보통신학과)
  • Published : 2000.06.01


MPEG-4 visual coding is an object-based system. The current video coding standards, H.261, MPEG-1, and MPEG-2 encode frame by frame. On the other hand, MPEG-4 separately encodes several objects, such as video objects and audio objects, in the same frame. Each transmitted object is decoded and composed in one frame. Shape coding is a process of coding visual objects in a frame. In this paper we present conformance test method for MPEG-4 shape decoders. This paper reviews the basic shape decoding standard, and proposes conformance test methods for BAB type decoder, and CAE decoder for intra and inter VOPs. Our test generates all possible cases of shape motion vector difference and context.



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  3. Audio-Visual Coding: Conformance ISO/IEC 14496-4 Committee Draft. Information technology-Very Low Bitrate ISO/IEC JTC1/SC29/WG11 N2550
  4. Information Technology-Generic Coding of Audio-visual Objects(part2:visul) ISO/IEC 14496-2
  5. JTC1/SC29/WG11 MPEG99/N2687 Coding of Moving Pictures and associated ISO/IEC
  6. JTC1/SC29/WG11 MPEG99/M4973 MPEG-4 Visual Core Profile Verification ISO/IEC
  7. JTC1/SC29/WG11 N2883 Information Technology-Generic coding of Moving ISO/IEC