Compressed video data stream switching method
    1.
    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 。

    Derivation of Frame/Field Encoding Mode for a Pair of Video Macroblocks
    3.
    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。

    Derivation of frame/field encoding mode for a pair of video macroblocks
    4.
    发明授权
    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:US08687696B2

    公开(公告)日:2014-04-01

    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。

    MACROBLOCK-BASED DUAL-PASS CODING METHOD
    5.
    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。

    Method or device for coding a sequence of source pictures
    6.
    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 or device for coding a sequence of source pictures
    7.
    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 AN IMAGE SEQUENCE
    8.
    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 for coding an image sequence
    10.
    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。