Adaptive coding method or device
    1.
    发明申请
    Adaptive coding method or device 审中-公开
    自适应编码方法或装置

    公开(公告)号:US20060008007A1

    公开(公告)日:2006-01-12

    申请号:US11175130

    申请日:2005-07-05

    摘要: The method containing a pre-analysis phase with pel-recursive type motion estimation and an actual coding phase with block matching motion estimation for picture blocks constituted by one or more sub-blocks, wherein the coding phase also comprises a motion vector selection stage for the picture sub-blocks based on the motion vectors calculated by matching for the block containing the sub-block and based on the motion vectors calculated by the pel-recursive type estimation for the pixels or the pixel groups belonging to the sub-block, and a calculation stage of the best partition of a picture block into sub-blocks based on the correlation calculations taking into account the motion vectors selected from the sub-blocks constituting a block.

    摘要翻译: 该方法包含具有像素递归类型运动估计的预分析阶段和由一个或多个子块构成的图像块的块匹配运动估计的实际编码相位,其中编码阶段还包括用于 基于通过对包含子块的块进行匹配而计算出的运动矢量的图像子块,并且基于通过对于属于子块的像素或像素组的像素递归类型估计计算出的运动矢量,以及 考虑到从构成块的子块中选择的运动矢量,基于相关计算将图块的最佳分区划分成子块的计算阶段。

    Method for coding an image sequence
    2.
    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。

    Device and method for coding a sequence of images in scalable format and corresponding decoding device and method
    3.
    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。

    Method or device for coding a sequence of source pictures
    4.
    发明授权
    Method or device for coding a sequence of source pictures 有权
    用于编码源图像序列的方法或装置

    公开(公告)号:US07801218B2

    公开(公告)日:2010-09-21

    申请号:US11170574

    申请日:2005-06-29

    IPC分类号: H04N7/12 H04N5/14

    摘要: The method is characterized in that the pre-analysis phase performs correlation level calculations of the even and odd field blocks of the current picture with the even and odd blocks of the current picture with the even and odd field blocks of the reference picture based on motion vectors calculated during this phase and corresponding to the blocks to impose, during the coding mode decision stage and among the inter coding modes, the inter coding between fields of the same parity or of opposing parity or the inter coding between frames, according to the correlation levels.

    摘要翻译: 该方法的特征在于,预分析阶段使用当前图像的偶数和奇数块,利用基于运动的参考图像的偶数和奇数场块来执行当前图像的偶数和奇数场块的相关电平计算 在该阶段期间计算的矢量对应于在编码模式判定阶段期间和在帧间编码模式中,根据相关性在相同奇偶校验或相对奇偶校验的场之间或帧之间的帧间编码之间进行帧间编码的块 水平。

    METHOD FOR CODING AN IMAGE SEQUENCE
    5.
    发明申请
    METHOD FOR CODING AN IMAGE SEQUENCE 有权
    编码图像序列的方法

    公开(公告)号:US20090304080A1

    公开(公告)日:2009-12-10

    申请号:US10585488

    申请日:2005-01-03

    IPC分类号: H04N7/26

    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ks指向的向后运动矢量场的向量的数量,计算图像k的实体的潜在使用率用于图像ks的反向预测编码 图像k的实体或其附近的周边和/或根据向前运动的向量的数量来计算图像k的实体的图像k的正向预测编码的速率的比率 图像k + p的矢量场指向图像k的实体或其附近的周围,根据图像实体的使用率,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。

    Method or device for coding a sequence of source pictures
    6.
    发明申请
    Method or device for coding a sequence of source pictures 有权
    用于编码源图像序列的方法或装置

    公开(公告)号:US20060013307A1

    公开(公告)日:2006-01-19

    申请号:US11170574

    申请日:2005-06-29

    摘要: The method is characterized in that the pre-analysis phase performs correlation level calculations of the even and odd field blocks of the current picture with the even and odd blocks of the current picture with the even and odd field blocks of the reference picture based on motion vectors calculated during this phase and corresponding to the blocks to impose, during the coding mode decision stage and among the inter coding modes, the inter coding between fields of the same parity or of opposing parity or the inter coding between frames, according to the correlation levels.

    摘要翻译: 该方法的特征在于,预分析阶段使用当前图像的偶数和奇数块,利用基于运动的参考图像的偶数和奇数场块来执行当前图像的偶数和奇数场块的相关电平计算 在该阶段期间计算的矢量对应于在编码模式判定阶段期间和在帧间编码模式中,根据相关性在相同奇偶校验或相对奇偶校验的场之间或帧之间的帧间编码之间进行帧间编码的块 水平。

    METHOD FOR CODING A SEQUENCE OF IMAGES
    7.
    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 。

    MACROBLOCK-BASED DUAL-PASS CODING METHOD
    8.
    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
    9.
    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 。