Motion-compensated prediction of inter-layer residuals
    61.
    发明申请
    Motion-compensated prediction of inter-layer residuals 有权
    层间残差运动补偿预测

    公开(公告)号:US20090238279A1

    公开(公告)日:2009-09-24

    申请号:US12077768

    申请日:2008-03-21

    IPC分类号: H04N7/34 H04N7/26

    摘要: Techniques and tools are described for scalable video encoding and decoding. In some embodiments, an encoding tool encodes base layer video and outputs encoded base layer video in a base layer bit stream. The encoding tool encodes inter-layer residual video (representing differences between input video and reconstructed base layer video) using motion compensation relative to previously reconstructed inter-layer residual video. For the inter-layer residual video, the encoding tool outputs motion information and motion-compensated prediction residuals in an enhancement layer bit stream. A decoding tool receives the base layer bit stream and enhancement layer bit stream, reconstructs base layer video, reconstructs inter-layer residual video, and combines the reconstructed base layer video and reconstructed inter-layer residual video. Using motion compensation for the inter-layer residual video facilitates the use of separate motion vectors and separate codecs for the base layer video and inter-layer residual video.

    摘要翻译: 描述了可扩展视频编码和解码的技术和工具。 在一些实施例中,编码工具对基层视频进行编码并在基层比特流中输出经编码的基层视频。 编码工具使用相对于先前重建的层间残留视频的运动补偿来编码层间残差视频(表示输入视频和重建的基本层视频之间的差异)。 对于层间残差视频,编码工具在增强层比特流中输出运动信息和运动补偿预测残差。 解码工具接收基层比特流和增强层比特流,重构基层视频,重建层间残留视频,并组合重建的基层视频和重建层间残留视频。 对于层间残留视频使用运动补偿有助于使用单独的运动矢量和单独的编解码器用于基本层视频和层间残留视频。

    Scan patterns for progressive video content
    62.
    发明申请
    Scan patterns for progressive video content 有权
    逐行视频内容的扫描模式

    公开(公告)号:US20050068208A1

    公开(公告)日:2005-03-31

    申请号:US10989594

    申请日:2004-11-15

    摘要: Tools and techniques for applying scan patterns during encoding and decoding of progressive video are described. For example, a video decoder entropy decodes transform coefficients in a one-dimensional array and scans the transform coefficients into a block according to a scan pattern. The block is 8×4, and the scan pattern biases the vertical direction for at least the lowest frequency AC coefficients in the horizontal and vertical directions. Or, the block is 4×8, and the scan pattern biases the horizontal direction for at least the lowest frequency AC coefficients in the horizontal and vertical directions. A corresponding video encoder applies the scan patterns to scan transform coefficients from blocks to one-dimensional arrays.

    摘要翻译: 描述了在逐行视频的编码和解码期间应用扫描模式的工具和技术。 例如,视频解码器熵解码一维阵列中的变换系数,并根据扫描模式将变换系数扫描成块。 该块为8×4,并且扫描图案偏置垂直方向至少在水平和垂直方向上的最低频率AC系数。 或者,块是4×8,并且扫描图案在水平和垂直方向上至少对最低频率AC系数偏置水平方向。 相应的视频编码器应用扫描图案来扫描从块到一维阵列的变换系数。

    Skip macroblock coding
    69.
    发明授权
    Skip macroblock coding 有权
    跳过宏块编码

    公开(公告)号:US07555167B2

    公开(公告)日:2009-06-30

    申请号:US11495354

    申请日:2006-07-27

    IPC分类号: G06K9/36 G06K9/46

    摘要: Various techniques and tools for encoding and decoding (e.g., in a video encoder/decoder) binary information (e.g., skipped macroblock information) are described. In some embodiments, the binary information is arranged in a bit plane, and the bit plane is coded at the picture/frame layer. The encoder and decoder process the binary information and, in some embodiments, switch coding modes. For example, the encoder and decoder use normal, row-skip, column-skip, or differential modes, or other and/or additional modes. In some embodiments, the encoder and decoder define a skipped macroblock as a predicted macroblock whose motion is equal to its causally predicted motion and which has zero residual error. In some embodiments, the encoder and decoder use a raw coding mode to allow for low-latency applications.

    摘要翻译: 描述用于编码和解码(例如,在视频编码器/解码器)二进制信息(例如,跳过的宏块信息)中的各种技术和工具。 在一些实施例中,二进制信息被布置在位平面中,并且位平面在图像/帧层被编码。 编码器和解码器处理二进制信息,并且在一些实施例中处理切换编码模式。 例如,编码器和解码器使用正常,行跳跃,列跳过或差分模式,或其他和/或附加模式。 在一些实施例中,编码器和解码器将跳过的宏块定义为其运动等于其因果预测运动并且具有零残差的预测宏块。 在一些实施例中,编码器和解码器使用原始编码模式来允许低延迟应用。