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多码率JPEG2000的感兴趣区域编码 被引量:4

Multi-rate Coding of Region of Interest for JPEG2000
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摘要 提出了一种支持多个JPEG2000感兴趣区域(ROI)编码的算法,利用JPEG2000率失真函数为凸函数的特性,在每层对ROI和背景(BG)分配不同的码率,对应不同的截止门限,最终生成的包将不同截止门限的码块流连接在一起。该方法支持动态定义多优先级ROI,生成码流与标准完全兼容。 A method is proposed to encode multiple regions of interest(ROI) in JPEG2000 image. According to the convex character of rate-distortion(R-D) function, it assigns different bit rate to ROI and background(BG). As a result, in each layer, more ROI information is coded than BG. The proposed strategy produces a fully compliant JPEG2000 code stream. It allows transmission of different ROIs with different priorities and supports dynamic delineation and prioritization of them.
出处 《计算机工程》 CAS CSCD 北大核心 2007年第5期200-201,共2页 Computer Engineering
关键词 JPEG2000 感兴趣区域 多码率 动态编码 JPEG2000 Region of interest (ROI) Multi-rate Dynamic coding
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参考文献8

  • 1Taubman D,Marcellin M W.JPEG2000:Image Compression Fundamentals,Standards,and Practice[M].Boston:Kluwer Academic Publishers.2002.
  • 2Christopoulos C,Akelf J,Larsson M.Efficient Methods for Encoding Regions of Interest in the Upcoming JPEG2000 Still Image Coding Standard[J].IEEE Signal Processing Letter,2000,7(9):247-249.
  • 3Wand Z,Bovik A C.Bitplane-by-bitplane Shift(BbBshift)--A Suggestion for JPEG2000 Region If Interest Coding[J].IEEE Signal Processing Letter,2002,9(5):160-162.
  • 4Liu L,Fan G.A New JPEG2000 Region of Interest Image Coding Method:Partial Significant Bitplanes Shift[J].IEEE Signal Processing Letter,2003,10(2):35-38.
  • 5Sanchez V,Basu A,Mandal M K.Prioritized Region of Interest Coding in JPEG2000[J].IEEE Trans.on Ciucuits and Systems for Video Tech.,2004,14(9):1149-1155.
  • 6Rosenbaum R,Schumann H.Flexible,Dynamic and Compliant Region of Interest Coding in JPEG2000[C]//Proc.of IEEE Int.Conf.on Image Processing.Rochester,New York.2002-09:101-104.
  • 7Tillo T,Olmo G.A Novel Multiple Description Coding Scheme Compatible with the JPEG2000 Decoder[J].IEEE Signal Processing Letter,2004.11(11):908-911.
  • 8Nguyen A,Chandran V,Sridharan S.Important Prioritization Coding in JPEG2000 for Interpretability with Applications to Surveillance Image[C]//Proc.of SPIE Visual Communication and Image Processing.2003.5150:806-817.

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