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    • 26. 发明申请
    • MERGING ENCODED BITSTREAMS
    • 合并编码的BITSTREAMS
    • WO2011081643A2
    • 2011-07-07
    • PCT/US2010/003141
    • 2010-12-10
    • THOMSON LICENSINGWU, ZhenyuVALLDOSERA, FerranGOLIKERI, Adarsh
    • WU, ZhenyuVALLDOSERA, FerranGOLIKERI, Adarsh
    • H04W12/04
    • H04N21/8451H04N19/30H04N19/40H04N19/513H04N19/70
    • At least one implementation provides a transcoder for merging two AVC (including, for example, the SVC annex) bitstreams. Various implementations provide advantages such as, for example, avoiding full decoding of at least one bitstream and/or avoiding motion compensation during the coding of an enhancement layer block. One particular implementation includes accessing a first and a second AVC encoding of a sequence of data. The second AVC encoding differs from the first AVC encoding in quality. The particular implementation further includes merging the first AVC encoding and the second AVC encoding into a third AVC encoding that uses the SVC extension of AVC. The merging is performed such that the first and second AVC encodings occupy different layers, and the first layer is a reference layer for the second layer.
    • 至少一个实现提供了用于合并两个AVC(包括例如SVC附件)比特流的代码转换器。 各种实施方式提供了诸如例如在增强层块的编码期间避免至少一个比特流的完全解码和/或避免运动补偿的优点。 一个特定实现包括访问数据序列的第一和第二AVC编码。 第二AVC编码与质量上的第一AVC编码不同。 具体实现还包括将第一AVC编码和第二AVC编码合并为使用AVC的SVC扩展的第三AVC编码。 执行合并使得第一和第二AVC编码占据不同的层,并且第一层是第二层的参考层。
    • 30. 发明申请
    • METHODS FOR DECODING CORRUPT JPEG2000 CODESTREAMS
    • 解码破坏JPEG2000 CODESTREAMS的方法
    • WO2004047010A1
    • 2004-06-03
    • PCT/US2003/036213
    • 2003-11-15
    • THE ARIZONA BOARD OF REGENTS on behalf of THE UNIVERSITY OF ARIZONAMARCELLIN, Michael, W.BILGIN, AliWU, Zhenyu
    • MARCELLIN, Michael, W.BILGIN, AliWU, Zhenyu
    • G06K9/36
    • H04N19/66H04N19/63H04N19/645H04N19/65H04N19/89
    • The present invention provides a method for decoding corrupt codestreams for encoded digital imagery and video and, in particular, JPEG2000 codestreams with improved error resilience properties. The decoding techniques apply to a class of coding algorithms in which the data from underlying images are partitioned, typically to allow decoding of different spatial sections of the image, and the rules governing the dependencies within and perhaps between partitioned sets are known. Corrupt codestreams are decoded with improved image quality by observing the partitions imposed by the underlying algorithm (200), detecting an error in a partition set (202), analyzing the dependencies within and perhaps between the partitions (204), determining what sections of encoded data that follow the error in the partition set can be salvaged (206), and decoding those sections (208). Even though there might be errors in a particular partition, portions of that partition might still be completely or partially decodable, depending on certain modes or "switches" used during the creation of the codestream.
    • 本发明提供一种用于解码用于编码数字图像和视频的损坏码流的方法,特别是具有改进的误差弹性属性的JPEG2000码流。 解码技术适用于一类编码算法,其中来自底层图像的数据被分割,通常允许对图像的不同空间部分进行解码,并且在已分配的集合之内以及也可能在分区集之间的依赖性的规则是已知的。 通过观察底层算法(200)施加的分区,检测分区集(202)中的错误,分析分区(204)内部的可能性,并且可能在分区(204)之间确定哪些部分被编码 跟踪分区集中的错误的数据可以被消除(206),并对这些部分进行解码(208)。 即使特定分区中可能存在错误,根据在创建码流期间使用的某些模式或“开关”,该分区的部分仍然可能是完全或部分可解码的。