METHOD FOR CODING A SEQUENCE OF IMAGES
    1.
    发明申请
    METHOD FOR CODING A SEQUENCE OF IMAGES 审中-公开
    用于编码图像序列的方法

    公开(公告)号:US20120269260A1

    公开(公告)日:2012-10-25

    申请号:US13392644

    申请日:2010-08-17

    IPC分类号: H04N7/30

    摘要: The invention relates to a method for coding a sequence of images divided into blocks, comprising the following steps for a current block:—selecting, for the current block, a coding mode in a set of coding modes that comprises at least two coding modes, and a transform in a set of transforms that comprises at least a first transform and a second transform; and—coding the current block according to the coding mode and the transform selected. The coding mode and the transform, themselves, are selected according to the following steps:—selecting the coding mode in the set of coding modes while using the first transform, and—selecting the transform in the set of transforms while using the coding mode selected.

    摘要翻译: 本发明涉及一种对划分成块的图像序列进行编码的方法,包括对当前块的以下步骤: - 针对当前块,选择包括至少两种编码模式的一组编码模式中的编码模式, 以及包括至少第一变换和第二变换的一组变换中的变换; 并根据编码模式和选择的变换对当前块进行编码。 根据以下步骤选择编码模式和变换本身: - 在使用第一变换时选择编码模式集合中的编码模式,并且在使用所选择的编码模式的同时选择变换集合中的变换 。

    Method and device for coding a video picture in inter or intra mode
    2.
    发明申请
    Method and device for coding a video picture in inter or intra mode 有权
    用于在帧间或帧内模式下编码视频图像的方法和装置

    公开(公告)号:US20060176956A1

    公开(公告)日:2006-08-10

    申请号:US11345108

    申请日:2006-01-31

    IPC分类号: H04N11/04

    摘要: The method is characterized in that the step for selecting a coding mode from the inter modes and from the intra modes is broken down into two sequential steps, a step for preselecting the intra coding mode for preselecting an intra mode for the current macroblock from the intra coding modes, and a coding decision step, part of the effective coding of the current macroblock for selecting the mode of coding the current macroblock from the inter modes and the preselected intra mode and in that the preselection step for the current macroblock is carried out during the coding decision step for a preceding macroblock.

    摘要翻译: 该方法的特征在于,从帧间模式和帧内模式中选择编码模式的步骤分为两个顺序步骤:用于从帧内预选当前宏块的帧内编码模式的步骤 编码模式和编码决定步骤,用于从帧间模式和预选帧内模式中选择当前宏块的编码模式的当前宏块的有效编码的一部分,以及当前宏块的预选步骤在 用于前一个宏块的编码决定步骤。

    Method and device for coding a video picture in inter or intra mode
    3.
    发明授权
    Method and device for coding a video picture in inter or intra mode 有权
    用于在帧间或帧内模式下编码视频图像的方法和装置

    公开(公告)号:US08000389B2

    公开(公告)日:2011-08-16

    申请号:US11345108

    申请日:2006-01-31

    摘要: The method is characterized in that the step for selecting a coding mode from the inter modes and from the intra modes is broken down into two sequential steps, a step for preselecting the intra coding mode for preselecting an intra mode for the current macroblock from the intra coding modes, and a coding decision step, part of the effective coding of the current macroblock for selecting the mode of coding the current macroblock from the inter modes and the preselected intra mode and in that the preselection step for the current macroblock is carried out during the coding decision step for a preceding macroblock.

    摘要翻译: 该方法的特征在于,从帧间模式和帧内模式中选择编码模式的步骤分为两个顺序步骤:用于从帧内预选当前宏块的帧内编码模式的步骤 编码模式和编码决定步骤,用于从帧间模式和预选帧内模式中选择当前宏块的编码模式的当前宏块的有效编码的一部分,以及当前宏块的预选步骤在 前一宏块的编码决定步骤。

    MACROBLOCK-BASED DUAL-PASS CODING METHOD
    4.
    发明申请
    MACROBLOCK-BASED DUAL-PASS CODING METHOD 审中-公开
    基于MACROBLOCK的双通道编码方法

    公开(公告)号:US20100303148A1

    公开(公告)日:2010-12-02

    申请号:US12735102

    申请日:2008-12-02

    IPC分类号: H04N7/26

    摘要: The method comprises the following steps: during the first pass, a memorization of the M best coding modes and their coding parameters per image macroblock, during the second pass, a calculation, according to the new quantization step determined by the regulating algorithm according to the parameters memorized, among the M coding modes memorized, of the coding mode minimising the bitrate-distortion criterion, to select it, a coding according to the selected coding mode. The applications relate to the compression of data.

    摘要翻译: 该方法包括以下步骤:在第一次通过期间,根据由根据调制算法确定的新量化步长,在第二次通过期间,对每个图像宏块的M个最佳编码模式及其编码参数进行记忆 在存储的M个编码模式的存储的M个编码模式中,存储最小化比特率失真准则的编码模式的参数,以选择它,根据所选择的编码模式的编码。 这些应用涉及数据的压缩。

    Compressed video data stream switching method
    5.
    发明授权
    Compressed video data stream switching method 失效
    压缩视频数据流切换方式

    公开(公告)号:US08743958B2

    公开(公告)日:2014-06-03

    申请号:US12316248

    申请日:2008-12-10

    IPC分类号: H04N7/12 H04N11/02 H04N11/04

    摘要: According to the compressed video data stream switching method for the transmission of a first data stream corresponding to a first video sequence, followed by, in a given switching point of this first stream, a second data stream corresponding to a second video sequence, the second data stream is modified prior to transmission, by a replacement of the bidirectional pictures with bidirectional commutation pictures of which the pictures blocks have a null residue and a null motion vector which is either forward or backward, according to the position of the blocks in the picture.

    摘要翻译: 根据用于发送对应于第一视频序列的第一数据流的压缩视频数据流切换方法,其次是在该第一流的给定切换点中与第二视频序列对应的第二数据流,第二数据流 数据流在传输之前通过根据图像中的块的位置替换具有图像块具有空余数的双向换向图像和向前或向后的零运动矢量的双向图像来修改 。

    Method for coding an image sequence
    7.
    发明授权
    Method for coding an image sequence 有权
    图像序列编码方法

    公开(公告)号:US07983339B2

    公开(公告)日:2011-07-19

    申请号:US10585488

    申请日:2005-01-03

    IPC分类号: H04N7/12 H04N11/02 H04N11/04

    摘要: The method comprises the steps for the: calculation of a rate of potential use of an entity of the picture k for a backward predictive coding of the picture k−s, according to the number of vectors of the backward motion vector field of the picture k−s pointing to the entity of the picture k or in its near surroundings and/or calculation of a rate of potential use of an entity of the picture k for a forward predictive coding of the picture k+p, according to the number of vectors of the forward motion vector field of the picture k+p pointing to the entity of the picture k or in its near surroundings, coding of the picture entity or the picture comprising the entity according to the rate of use of the picture entity. The applications concern the hybrid type compression diagrams.

    摘要翻译: 该方法包括以下步骤:根据图像k的向后运动矢量场的向量的数量,计算图像k的实体的潜在利用率用于图像k-s的反向预测编码 -s指向图像k的实体或其附近的周围和/或根据矢量的数量来计算图像k的实体的潜在使用率用于图像k + p的正向预测编码 指向图像k的实体的图像k + p的前向运动矢量场的编码,或者根据图像实体的使用速率对图像实体或包括实体的图像进行编码。 这些应用涉及混合型压缩图。

    Derivation of Frame/Field Encoding Mode for a Pair of Video Macroblocks
    9.
    发明申请
    Derivation of Frame/Field Encoding Mode for a Pair of Video Macroblocks 失效
    推导一对视频宏块的帧/场编码模式

    公开(公告)号:US20090016439A1

    公开(公告)日:2009-01-15

    申请号:US12223434

    申请日:2007-01-31

    IPC分类号: H04N7/26

    摘要: The method wherein the field or frame mode is selected according to the following steps: determination of a motion vector associated with a co-located macroblock of a macroblock to be coded and finding in the next reference picture, a predefined macroblock to be coded, for the selection, in field or frame mode, scaling of the motion vector according to the temporal distances between the reference pictures corresponding to this motion vector and between the current picture, field or frame, according to a predefined mode and a reference picture chosen from among the reference pictures corresponding to this motion vector, determination of the temporal macroblock in the chosen reference picture, designated by the motion vector scale attributed to the macroblock to be coded, and its field or frame coding mode, selection of field or frame coding mode of the temporal macroblock for the coding of the current macroblock. The applications relate to the compression of data using for example the MPEG4 part 10 standard.

    摘要翻译: 根据以下步骤选择场或帧模式的方法:确定与要编码的宏块的同位置宏块相关联的运动矢量,并在下一个参考图像中查找要编码的预定义宏块,用于 在场或帧模式中,根据预定义的模式和从以下的参考图像中选择的参考图像,根据与该运动矢量对应的参考图像与当前图像,场或帧之间的时间距离,运动矢量的缩放 对应于该运动矢量的参考图像,由归因于要编码的宏块的运动矢量标度指定的所选参考图像中的时间宏块的确定及其场或帧编码模式,场或帧编码模式的选择 用于当前宏块的编码的时间宏块。 这些应用涉及使用例如MPEG4第10部分的数据压缩数据。

    Device and method for coding a sequence of images in scalable format and corresponding decoding device and method
    10.
    发明申请
    Device and method for coding a sequence of images in scalable format and corresponding decoding device and method 审中-公开
    用于以可缩放格式编码图像序列的装置和方法及相应的解码装置和方法

    公开(公告)号:US20080260043A1

    公开(公告)日:2008-10-23

    申请号:US11974734

    申请日:2007-10-16

    IPC分类号: H04N7/26

    摘要: The invention relates to a method for coding an image data macroblock of a sequence of images presented in the form of a base layer and at least one enhancement layer. The image data macroblock to which corresponds an image data block in the base layer, called a corresponding block, belongs to the enhancement layer. The method comprises the following steps: generate, for the said image data macroblock, a prediction macroblock of image data from one block or several blocks of image data blocks of the said base layer previously coded and reconstructed, generate a macroblock of residues from the prediction macroblock and from the image data macroblock MBEL of the enhancement layer, and code the said macroblock of residues. According to the invention, the image data blocks of the said base layer are different from the corresponding block.

    摘要翻译: 本发明涉及一种用于编码以基层和至少一个增强层形式呈现的图像序列的图像数据宏块的方法。 被称为对应块的基础层中对应于图像数据块的图像数据宏块属于增强层。 该方法包括以下步骤:为所述图像数据宏块生成来自预先编码和重建的所述基本层的一个块或多个图像数据块的图像数据的预测宏块,从预测生成残差宏块 宏块和来自增强层的图像数据宏块MB EL EL,并对所述宏块进行编码。 根据本发明,所述基础层的图像数据块与相应的块不同。