Guaranteed-rate tiled image data compression
    1.
    发明授权
    Guaranteed-rate tiled image data compression 有权
    保证速率的平铺图像数据压缩

    公开(公告)号:US08588536B2

    公开(公告)日:2013-11-19

    申请号:US13024989

    申请日:2011-02-10

    IPC分类号: G06K9/36

    摘要: A method of compressing digital image data is provided that includes, for each image data block in a plurality of image data blocks in the digital image data, transforming image data in the image data block to convert the image data to a low-frequency coefficient and a plurality of high-frequency coefficients, computing a predicted low-frequency coefficient for the image data block based on at least one neighboring image data block in the plurality of image data blocks, computing a residual low-frequency coefficient based on the predicted low-frequency coefficient and the low-frequency coefficient, quantizing the plurality of high-frequency coefficients, and entropy coding the residual low-frequency coefficient and the quantized high-frequency coefficients.

    摘要翻译: 提供一种压缩数字图像数据的方法,包括对于数字图像数据中的多个图像数据块中的每个图像数据块,对图像数据块中的图像数据进行变换以将图像数据转换为低频系数, 多个高频系数,基于所述多个图像数据块中的至少一个相邻图像数据块计算所述图像数据块的预测低频系数,基于所述预测低频系数计算残留低频系数, 频率系数和低频系数,对多个高频系数进行量化,对剩余低频系数和量化高频系数进行熵编码。

    Guaranteed-Rate Tiled Image Data Compression
    2.
    发明申请
    Guaranteed-Rate Tiled Image Data Compression 有权
    保证速率的平铺图像数据压缩

    公开(公告)号:US20110206289A1

    公开(公告)日:2011-08-25

    申请号:US13024989

    申请日:2011-02-10

    IPC分类号: G06K9/36

    摘要: A method of compressing digital image data is provided that includes, for each image data block in a plurality of image data blocks in the digital image data, transforming image data in the image data block to convert the image data to a low-frequency coefficient and a plurality of high-frequency coefficients, computing a predicted low-frequency coefficient for the image data block based on at least one neighboring image data block in the plurality of image data blocks, computing a residual low-frequency coefficient based on the predicted low-frequency coefficient and the low-frequency coefficient, quantizing the plurality of high-frequency coefficients, and entropy coding the residual low-frequency coefficient and the quantized high-frequency coefficients.

    摘要翻译: 提供一种压缩数字图像数据的方法,包括对于数字图像数据中的多个图像数据块中的每个图像数据块,对图像数据块中的图像数据进行变换以将图像数据转换为低频系数, 多个高频系数,基于所述多个图像数据块中的至少一个相邻图像数据块计算所述图像数据块的预测低频系数,基于所述预测低频系数计算残留低频系数, 频率系数和低频系数,对多个高频系数进行量化,对剩余低频系数和量化高频系数进行熵编码。

    Inter-Prediction Candidate Index Coding Independent of Inter-Prediction Candidate List Construction in Video Coding
    8.
    发明申请
    Inter-Prediction Candidate Index Coding Independent of Inter-Prediction Candidate List Construction in Video Coding 有权
    预测候选索引编码独立于视频编码中的预测候选列表构造

    公开(公告)号:US20120320984A1

    公开(公告)日:2012-12-20

    申请号:US13523772

    申请日:2012-06-14

    申请人: Minhua Zhou

    发明人: Minhua Zhou

    IPC分类号: H04N7/32

    摘要: Methods are provided for inter-prediction candidate index coding independent of the construction of the corresponding inter-prediction candidate list, i.e., a merging candidate list or an advanced motion vector predictor list. A maximum allowed number of inter-prediction candidates for an inter-prediction candidate list is used for encoding the inter-prediction candidate index in an encoded bit stream. The maximum allowed number may be pre-determined or may be selected by the encoder and encoded in the bit stream. A decoder may then decode the index using the maximum allowed number of inter-prediction candidates independent of the construction of the corresponding inter-prediction candidate list.

    摘要翻译: 提供与预测间候选索引编码无关的方法,该编码独立于对应的预测间候选列表的构造,即合并候选列表或高级运动向量预测器列表。 使用用于帧间预测候选列表的帧间预测候选的最大允许数量来编码编码比特流中的预测间候选索引。 最大允许数量可以是预先确定的,或者可以由编码器选择并在比特流中编码。 然后,解码器可以使用独立于对应的帧间预测候选列表的构造的最大允许数量的帧间预测候选来对索引进行解码。

    Method and Apparatus for Sub-Picture Based Raster Scanning Coding Order
    9.
    发明申请
    Method and Apparatus for Sub-Picture Based Raster Scanning Coding Order 有权
    基于子图片的栅格扫描编码顺序的方法和装置

    公开(公告)号:US20120007992A1

    公开(公告)日:2012-01-12

    申请号:US13179174

    申请日:2011-07-08

    申请人: Minhua Zhou

    发明人: Minhua Zhou

    IPC分类号: H04N3/30 H04N7/26

    摘要: A method and apparatus for sub-picture based raster scanning coding order. The method includes dividing an image into even sub-pictures, and encoding parallel sub-pictures on multi-cores in raster scanning order within sub-pictures, wherein from core to core, coding of the sub-picture is independent around sub-picture boundaries, and wherein within a core, coding of a sub-picture is at least one of dependent or independent around sub-picture boundaries.

    摘要翻译: 一种基于子图像的光栅扫描编码顺序的方法和装置。 该方法包括将图像划分为偶数子图像,并且在子图像内以光栅扫描顺序在多核上编码并行子图像,其中从核心到核心,子图像的编码在子图像边界周围是独立的 并且其中在核心内,子图像的编码是关于子图像边界的从属或独立的至少一个。

    8×8 transform and quantization
    10.
    发明授权
    8×8 transform and quantization 有权
    8×8变换和量化

    公开(公告)号:US08069201B2

    公开(公告)日:2011-11-29

    申请号:US10990917

    申请日:2004-11-16

    申请人: Minhua Zhou

    发明人: Minhua Zhou

    IPC分类号: G06F7/32

    CPC分类号: H04N19/126 H04N19/60

    摘要: Low complexity (16 bit arithmetic) video compression has 8×8 block with transforms using 8×8 integer matrices and quantization with look up table scalar plus constant right shift for all quantization steps. Inverse quantization also a look up table scalar plus right shift dependent upon the quantization step and inverse transform using the 8×8 integer matrices.

    摘要翻译: 低复杂度(16位算术)视频压缩具有8×8块,具有使用8×8整数矩阵的变换和具有查找表标量的量化以及用于所有量化步长的常量右移。 反向量化也是查找表标量加上右移取决于量化步长和使用8×8整数矩阵的逆变换。