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    Generalized differentiation methods and arrangements for adaptive multimedia communications
    53.
    发明授权
    Generalized differentiation methods and arrangements for adaptive multimedia communications 有权
    广义差分方法和自适应多媒体通信的安排

    公开(公告)号：US07389356B2

    公开(公告)日：2008-06-17

    申请号：US09862410

    申请日：2001-05-21

    申请人： Huai-Rong Shao ,  Wenwu Zhu ,  Ya-Qin Zhang

    发明人： Huai-Rong Shao ,  Wenwu Zhu ,  Ya-Qin Zhang

    IPC分类号： G06F15/16 ,  G06F15/173 ,  G06T15/00 ,  H04N7/15

    CPC分类号： H04L47/10 ,  H04L29/06 ,  H04L29/06027 ,  H04L47/2408 ,  H04L47/2441 ,  H04L47/326 ,  H04L47/50 ,  H04L47/521 ,  H04L47/564 ,  H04L47/6215 ,  H04L65/607

    摘要： Various methods and arrangements are provided for transmitting adaptive multimedia content over networks that provide differential services. By way of example, one method includes compressing video objects, generating at least one corresponding elementary stream containing the compressed video objects, classifying information within each elementary stream based on importance, and assembling the classified information into packets associated with different classes of network packets. In classifying the information within each elementary stream based on importance, different priority levels can be assigned to shape, motion, and texture information. Methods and arrangements are also provided for use with multimedia content information that includes audio information, image information, textual information, and the like.

    摘要翻译： 提供各种方法和装置用于通过提供差分服务的网络传输自适应多媒体内容。 作为示例，一种方法包括压缩视频对象，生成包含压缩视频对象的至少一个对应基本流，基于重要性对每个基本流内的信息进行分类，以及将分类信息组合成与不同类别的网络分组相关联的分组。 在基于重要性对每个基本流中的信息进行分类时，可以将不同的优先级分配给形状，运动和纹理信息。 还提供了与包括音频信息，图像信息，文本信息等的多媒体内容信息一起使用的方法和装置。

    Methods and arrangements for compressing image-based rendering (IBR) data using alignment and 3D wavelet transform techniques
    58.
    发明授权
    Methods and arrangements for compressing image-based rendering (IBR) data using alignment and 3D wavelet transform techniques 有权
    使用对准和3D小波变换技术压缩基于图像的渲染（IBR）数据的方法和布置

    公开(公告)号：US06567081B1

    公开(公告)日：2003-05-20

    申请号：US09598189

    申请日：2000-06-20

    申请人： Jin Li ,  Ya-Qin Zhang ,  Yunnan Wu ,  Lin Luo

    发明人： Jin Li ,  Ya-Qin Zhang ,  Yunnan Wu ,  Lin Luo

    IPC分类号： G06T1700

    CPC分类号： G06T9/007

    摘要： Methods and arrangement are provided for compressing and transporting image-based rendering (IBR) data using alignment and three-dimensional (3D) wavelet transform techniques, and selectively decompressing portions of the resulting compressed data to render various two-dimensional (2D) views of a 3D scene. A compression engine compresses the IBR data using a 3D wavelet transform and outputs a compressed bitstream comprising encoded frequency coefficients associated with the IBR data. This compressed bitstream can then be provided to a separate decompression engine that selectively decodes portions of the compressed bitstream based on an access request for image data associated with a desired view from a rendering engine. Through a mixed cache, the progressive inverse wavelet synthesis (PIWS) engine decompresses the decoded portions with minimum calculation, and provides the decompressed IBR data to the rendering engine. The rendering engine is therefore able to render the decompressed IBR data without having to have the entire IBR bitstream decoded and decompressed at any one time.

    摘要翻译： 提供了使用对准和三维（3D）小波变换技术来压缩和传送基于图像的渲染（IBR）数据的方法和布置，并且选择性地解压缩所得到的压缩数据的部分以呈现各种二维（2D）视图 一个3D场景。 压缩引擎使用3D小波变换来压缩IBR数据，并且输出包含与IBR数据相关联的编码频率系数的压缩比特流。 然后，可以将该压缩比特流提供给单独的解压缩引擎，该解压缩引擎基于对来自呈现引擎的期望视图相关联的图像数据的访问请求来选择性地解码压缩比特流的部分。 通过混合高速缓存，逐行逆小波合成（PIWS）引擎以最小的计算解压缩解码部分，并将解压后的IBR数据提供给渲染引擎。 因此，渲染引擎能够呈现解压缩的IBR数据，而不必在任何一个时间都对整个IBR比特流进行解码和解压缩。

    Apparatus and method for encoding zerotrees generated by a wavelet-based coding technique
    59.
    发明授权
    Apparatus and method for encoding zerotrees generated by a wavelet-based coding technique 失效
    用于编码通过基于小波的编码技术产生的零点的装置和方法

    公开(公告)号：US06483946B1

    公开(公告)日：2002-11-19

    申请号：US08736114

    申请日：1996-10-24

    申请人： Stephen A. Martucci ,  Iraj Sodagar ,  Ya-Qin Zhang

    发明人： Stephen A. Martucci ,  Iraj Sodagar ,  Ya-Qin Zhang

    IPC分类号： G06K936

    CPC分类号： H04N19/94 ,  H04N19/64 ,  H04N19/645 ,  H04N19/647

    摘要： Apparatus and method for encoding zerotrees in a wavelet-based coding technique. The method uses a depth-first pattern for traversing the zerotree, i.e., each branch of the tree, from parent to child to grandchild and so on, is fully traversed before a next branch is traversed. The depth-first tree traversal pattern is used to quantize the coefficients of the tree as well as to assign symbols to the quantized coefficients. The method assigns one of three symbols to each node: ZEROTREE ROOT, VALUED ZEROTREE ROOT, and VALUE. By using three symbols and the efficient tree traversal pattern, the method is substantially more efficient at encoding a zerotree than the prior art. Additionally, this concept is applied to the encoding of “vector” zerotrees.

    摘要翻译： 在基于小波的编码技术中编码零点的装置和方法。 该方法使用深度优先模式遍历零树，即树的每个分支，从父到子到孙，等等，在遍历下一个分支之前，完全遍历。 深度优先树遍历模式用于对树的系数进行量化，并将符号分配给量化系数。 该方法为每个节点分配三个符号之一：ZEROTREE ROOT，VALUED ZEROTREE ROOT和VALUE。 通过使用三个符号和有效的树遍历模式，该方法比现有技术在编码零树方面显着更有效率。 另外，这个概念被应用于“矢量”零点的编码。