CONTEXT-ADAPTIVE VLC VIDEO TRANSFORM COEFFICIENTS ENCODING/DECODING METHODS AND APPARATUSES
    1.
    发明申请
    CONTEXT-ADAPTIVE VLC VIDEO TRANSFORM COEFFICIENTS ENCODING/DECODING METHODS AND APPARATUSES 有权
    上下文自适应VLC视频变换系数编码/解码方法和设备

    公开(公告)号:US20070041449A1

    公开(公告)日:2007-02-22

    申请号:US11467531

    申请日:2006-08-25

    Abstract: Transform coefficients of sample blocks of a macroblock of a video picture are encoded by adaptively encoding a combination, the number of non-zero coefficients before the trailing one coefficients and the number of trailing one coefficients. The transform coefficients may be further encoded by adaptively encoding one or more of the signs of the trailing one coefficients, the level measures of the interposed in the non-zero coefficients. Adaptive encoding of the number and trailing one coefficients may be performed in view of one or more neighboring sample blocks, whereas adaptive encoding of level measure may be performed in view of quantization parameters of a macroblock and previously encoded level measures. Decoding may be performed in an inverse manner.

    Abstract translation: 对视频图像的宏块的采样块的变换系数通过对组合进行自适应编码,在后一个系数之前的非零系数的数量和后一个系数的数量来编码。 可以通过对后一个系数的符号中的一个或多个进行自适应编码来进一步编码变换系数,该插值在非零系数中的电平测量。 可以根据一个或多个相邻采样块来执行数字和尾随的一个系数的自适应编码,而可以根据宏块的量化参数和先前编码的电平测量来执行电平测量的自适应编码。 解码可以以相反的方式执行。

    Video compression using an adaptive loop filter
    2.
    发明授权
    Video compression using an adaptive loop filter 有权
    使用自适应环路滤波器进行视频压缩

    公开(公告)号:US09332278B2

    公开(公告)日:2016-05-03

    申请号:US13538171

    申请日:2012-06-29

    Abstract: A method including: obtaining video information at a video decoder apparatus, the video information including largest coding units of video data and filtering information, each of the largest coding units having a common size; obtaining, at the video decoder apparatus, an adaptive loop filter on/off indicator for each of the largest coding units, wherein each of the largest coding units includes a respective adaptive loop filter on/off indicator; and performing, by the video decoder apparatus, adaptive loop filtering to the largest coding units if the respective adaptive on/off indicators are on.

    Abstract translation: 一种方法,包括:在视频解码器装置获取视频信息,视频信息包括视频数据的最大编码单元和滤波信息,每个最大编码单元具有公共大小; 在视频解码装置处获取每个最大编码单元的自适应环路滤波器开/关指示符,其中每个最大编码单元包括相应的自适应环路滤波器开/关指示符; 以及如果相应的自适应打开/关闭指示器打开,则由视频解码器装置执行自适应环路滤波到最大编码单元。

    Method for chroma deblocking
    4.
    发明申请
    Method for chroma deblocking 有权
    色度去块方法

    公开(公告)号:US20060018386A1

    公开(公告)日:2006-01-26

    申请号:US11153243

    申请日:2005-06-14

    CPC classification number: H04N19/85 H04N19/186 H04N19/44 H04N19/527 H04N19/61

    Abstract: The invention is related to decoding of block wise coded video pictures. The determination of using de-blocking filtering between coded chroma blocks is based on alternative characteristics compared to the characteristics used in H.264/AVC.

    Abstract translation: 本发明涉及块编码视频图像的解码。 在H.264 / AVC中使用的特性相比,使用编码色块之间的去块滤波的确定是基于替代特性的。

    Cosmetics filter for smoothing regenerated pictures, e.g. after signal
compressing for transmission in a narrowband network
    5.
    发明授权
    Cosmetics filter for smoothing regenerated pictures, e.g. after signal compressing for transmission in a narrowband network 失效
    用于平滑再生图像的化妆品过滤器,例如 在信号压缩之后在窄带网络中传输

    公开(公告)号:US5488420A

    公开(公告)日:1996-01-30

    申请号:US204256

    申请日:1994-04-20

    CPC classification number: H04N5/21 H03H17/0226

    Abstract: Smoothing of regenerated digital pictures (e.g. after a heavy signal compression and coding for transmission on a narrowband medium) can be effected by means of a so-called "cosmetics filter" which filter comprises a digital lowpass filter, a delay, a subtraction unit, a table and an adder. An input signal enters the lowpass filter and the delay which is arranged in parallel with the lowpass filter. The difference between the delayed signal and the lowpass-filtered signal is used to address the table. An address content from the table is passed to the adder to be added to the lowpass-filtered signal from the lowpass filter, and the sum signal from the adder is the final filtered signal to the output from the cosmetics filter.

    Abstract translation: PCT No.PCT / NO92 / 00144 Sec。 371日期1994年04月20日 102(e)1994年4月20日PCT PCT 1992年9月8日PCT公布。 出版物WO93 / 05612 日期1993年3月18日。再生数字图像的平滑化(例如,在用于在窄带介质上传输的重信号压缩和编码之后)可以通过所谓的“化妆品滤波器”来实现,该滤波器包括数字低通滤波器, 延迟,减法单元,表和加法器。 输入信号进入低通滤波器和与低通滤波器并联布置的延迟。 延迟信号和低通滤波信号之间的差异用于寻址表。 来自表格的地址内容被传递给加法器以被加到来自低通滤波器的低通滤波信号中,来自加法器的和信号是来自化妆品滤波器的输出的最终滤波信号。

    Context-adaptive VLC video transform coefficients encoding/decoding methods and apparatuses
    6.
    发明授权
    Context-adaptive VLC video transform coefficients encoding/decoding methods and apparatuses 有权
    上下文自适应VLC视频变换系数编码/解码方法和装置

    公开(公告)号:US07920629B2

    公开(公告)日:2011-04-05

    申请号:US11467531

    申请日:2006-08-25

    Abstract: Transform coefficients of sample blocks of a macroblock of a video picture are encoded by adaptively encoding a combination, the number of non-zero coefficients before the trailing one coefficients and the number of trailing one coefficients. The transform coefficients may be further encoded by adaptively encoding one or more of the signs of the trailing one coefficients, the level measures of the interposed in the non-zero coefficients. Adaptive encoding of the number and trailing one coefficients may be performed in view of one or more neighboring sample blocks, whereas adaptive encoding of level measure may be performed in view of quantization parameters of a macroblock and previously encoded level measures. Decoding may be performed in an inverse manner.

    Abstract translation: 对视频图像的宏块的采样块的变换系数通过对组合进行自适应编码,在后一个系数之前的非零系数的数量和后一个系数的数量来编码。 可以通过对后一个系数的符号中的一个或多个进行自适应编码来进一步编码变换系数,该插值在非零系数中的电平测量。 可以根据一个或多个相邻采样块来执行数字和尾随的一个系数的自适应编码,而可以根据宏块的量化参数和先前编码的电平测量来执行电平测量的自适应编码。 解码可以以相反的方式执行。

    Noise reduction method, apparatus, system, and computer program product
    7.
    发明授权
    Noise reduction method, apparatus, system, and computer program product 有权
    降噪方法,仪器,系统和计算机程序产品

    公开(公告)号:US07327785B2

    公开(公告)日:2008-02-05

    申请号:US10880460

    申请日:2004-07-01

    Abstract: A video coding apparatus, method, and computer program product for removing transform coding noise especially in flat areas of a frame, which appears as remaining parts of moving objects in a video picture. Transform coding noise is removed by forcing a macroblock to be intra coded instead of inter coded when certain criteria are fulfilled so as to reveal whether the macroblock contain annoying quantization generated noise and to detect if an equalization is necessary.

    Abstract translation: 一种视频编码装置,方法和计算机程序产品,用于消除变换编码噪声,特别是在作为视频图像中的运动对象的剩余部分出现的帧的平坦区域中。 通过在满足某些标准的情况下强制宏块进行帧内编码而不是帧间编码来去除变换编码噪声,以便揭示该宏块是否包含令人讨厌的量化产生的噪声并检测是否需要均衡。

    Method for improved entropy coding
    8.
    发明申请
    Method for improved entropy coding 有权
    改进熵编码的方法

    公开(公告)号:US20060146938A1

    公开(公告)日:2006-07-06

    申请号:US11316931

    申请日:2005-12-27

    CPC classification number: H04N19/18 H04N19/13 H04N19/60

    Abstract: The invention is related to entropy coding/decoding of transform coefficient data in video compression systems. For entropy coding coefficients representing a block in a video image, a preferred embodiment of the present invention introduces events combining the position of the last non-zero coefficient in the block with whether the absolute value is greater than 1. Further, no information from outside the macroblock is used to decide what VLC to use. Coefficients are typically coded by starting in a Run-mode and continuing in Level-mode when the first coefficient with absolute value>1 is found.

    Abstract translation: 本发明涉及视频压缩系统中变换系数数据的熵编码/解码。 对于表示视频图像中的块的熵编码系数,本发明的优选实施例引入将块中的最后非零系数的位置与绝对值是否大于1的事件组合的事件。此外,不存在来自外部的信息 该宏块用于决定要使用的VLC。 当找到绝对值> 1的第一个系数时,系数通常以运行模式开始编程,并在电平模式下继续进行编码。

    Variable length coding (VLC) method and device
    9.
    发明授权
    Variable length coding (VLC) method and device 有权
    可变长度编码(VLC)方法和装置

    公开(公告)号:US08306347B2

    公开(公告)日:2012-11-06

    申请号:US12339817

    申请日:2008-12-19

    Abstract: A method for representing video data related to a macroblock of a video image in a coding procedure wherein certain, video data or combinations of video data is represented in predefined events associated with indexed positions in a Variable Length Code (VLC) table including codes assigned to each indexed position, including: determining, with a processor, that a first event among said predefined events occurs during the coding procedure; coding, with the processor, the first event with a code assigned to a position x in the VLC table being associated with the first event, the VLC table being stored in a memory device; determining, with the processor, whether x>0, wherein 0 denotes a position at a top of the VLC table; and rearranging, with the processor, the VLC table by associating a second event currently associated with a position x−1 with the position x, and associating the first event with the position x−1.

    Abstract translation: 一种用于在编码过程中表示与视频图像的宏块有关的视频数据的方法,其中某些视频数据或视频数据的组合在与可分配长度码(VLC)表中的索引位置相关联的预定事件中表示,包括分配给 每个索引位置包括:用处理器确定所述预定义事件中的第一事件在编码过程期间发生; 用所述处理器对所述第一事件进行编码,所述第一事件具有分配给所述VLC表中与所述第一事件相关联的位置x的代码,所述VLC表存储在存储器件中; 用处理器确定x> 0,其中0表示VLC表的顶部的位置; 并且通过将当前与位置x-1相关联的第二事件与位置x相关联,并且将第一事件与位置x-1相关联,通过与处理器重新排列VLC表。

    Method for pixel prediction with low complexity
    10.
    发明授权
    Method for pixel prediction with low complexity 有权
    低复杂度的像素预测方法

    公开(公告)号:US08218639B2

    公开(公告)日:2012-07-10

    申请号:US12028529

    申请日:2008-02-08

    CPC classification number: H04N19/577 H04N19/523

    Abstract: A method including: calculating a prediction of a first block of pixels in a second video frame with a temporal position between a first and a third video frame from a first motion vector of pixel position components relative to spatial pixel positions of the first block referring the first video frame and a third motion vector of pixel position components relative to spatial pixel positions of the first block referring the third video frame, wherein a second block of pixels in the third video frame spatially collocated with the first block is predicted from a second motion vector of pixel position components relative to spatial pixel positions of the second block referring the first video frame.

    Abstract translation: 一种方法,包括:计算第二视频帧中的第一像素块的预测,其中第一和第三视频帧之间的时间位置相对于第一块的第一运动矢量相对于第一块的空间像素位置, 第一视频帧和相对于参考第三视频帧的第一块的空间像素位置的像素位置分量的第三运动矢量,其中与第一块空间地并置的第三视频帧中的第二像素块从第二运动预测 参考第一视频帧的相对于第二块的空间像素位置的像素位置分量的矢量。

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