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    Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding
    5.
    发明授权
    Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding 有权
    用于数字视频编码的可变精度画面间时序规范的方法和装置

    公开(公告)号：US08737462B2

    公开(公告)日：2014-05-27

    申请号：US13340043

    申请日：2011-12-29

    Applicant: Barin Geoffry Haskell ,  David William Singer ,  Adriana Dumitras ,  Atul Puri

    Inventor： Barin Geoffry Haskell ,  David William Singer ,  Adriana Dumitras ,  Atul Puri

    IPC: H04N7/12

    CPC classification number: H04N19/513 ,  G06T9/005 ,  H04N19/13 ,  H04N19/132 ,  H04N19/176 ,  H04N19/40 ,  H04N19/43 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/577 ,  H04N19/587 ,  H04N19/61 ,  H04N19/91 ,  H04N21/4305

    Abstract: A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically, the present invention discloses a system that allows the relative timing of nearby video pictures to be encoded in a very efficient manner. In one embodiment, the display time difference between a current video picture and a nearby video picture is determined. The display time difference is then encoded into a digital representation of the video picture. In a preferred embodiment, the nearby video picture is the most recently transmitted stored picture. For coding efficiency, the display time difference may be encoded using a variable length coding system or arithmetic coding. In an alternate embodiment, the display time difference is encoded as a power of two to reduce the number of bits transmitted.

    Abstract translation: 公开了一种用于数字视频编码的可变精度画面间时序规范的方法和装置。 具体地说，本发明公开了一种允许以非常有效的方式编码附近视频图像的相对定时的系统。 在一个实施例中，确定当前视频图像和附近视频图像之间的显示时间差。 然后将显示时间差编码为视频图像的数字表示。 在优选实施例中，附近的视频图像是最近发送的存储图像。 对于编码效率，可以使用可变长度编码系统或算术编码对显示时间差进行编码。 在替代实施例中，显示时间差被编码为2的幂，以减少发送的比特数。

    Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding with reduced requirements for division operations
    6.
    发明授权
    Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding with reduced requirements for division operations 有权
    用于数字视频编码的可变精度画面间定时规范的方法和装置，减少对分割操作的要求

    公开(公告)号：US08254461B2

    公开(公告)日：2012-08-28

    申请号：US11779668

    申请日：2007-07-18

    Applicant: Barin Geoffry Haskell ,  David William Singer ,  Adriana Dumitras ,  Atul Puri

    Inventor： Barin Geoffry Haskell ,  David William Singer ,  Adriana Dumitras ,  Atul Puri

    IPC: H04N7/12

    CPC classification number: H04N19/426 ,  H04N19/51 ,  H04N19/52

    Abstract: A method and apparatus for performing motion estimation in a digital video system is disclosed. Specifically, the present invention discloses a system that quickly calculates estimated motion vectors in a very efficient manner. In one embodiment, a first multiplicand is determined by multiplying a first display time difference between a first video picture and a second video picture by a power of two scale value. This step scales up a numerator for a ratio. Next, the system determines a scaled ratio by dividing that scaled numerator by a second first display time difference between said second video picture and a third video picture. The scaled ratio is then stored calculating motion vector estimations. By storing the scaled ratio, all the estimated motion vectors can be calculated quickly with good precision since the scaled ratio saves significant bits and reducing the scale is performed by simple shifts.

    Abstract translation: 公开了一种用于在数字视频系统中执行运动估计的方法和装置。 具体地，本发明公开了一种以非常有效的方式快速计算估计的运动矢量的系统。 在一个实施例中，通过将第一视频图像和第二视频图像之间的第一显示时间差乘以两个比例值的幂来确定第一被乘数。 这个步骤可以扩大一个比例的分子。 接下来，系统通过将所述缩放分子除以所述第二视频图像和第三视频图像之间的第二第一显示时间差来确定缩放比例。 然后存储计算运动矢量估计的缩放比例。 通过存储缩放比例，可以以高精度快速计算所有估计的运动矢量，因为缩放比例可以节省有效位，并且通过简单的移位来减小刻度。

    OPTIMIZED DEBLOCKING FILTERS
    8.
    发明申请
    OPTIMIZED DEBLOCKING FILTERS 有权
    优化去阻塞过滤器

    公开(公告)号：US20120082236A1

    公开(公告)日：2012-04-05

    申请号：US12895688

    申请日：2010-09-30

    Applicant: Barin Geoffry Haskell

    Inventor： Barin Geoffry Haskell

    IPC: H04N7/26

    CPC classification number: H04N7/26888 ,  H04N19/117 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86

    Abstract: An encoder executes an iterative search method for selecting deblocking parameters for coded video. According to the method, a decoded picture may be deblocked according to parameters associated with a multi-dimensional deblocking vector and an error, called the “deblocking error” may be estimated therefrom. If the estimated error exceeds a predetermined threshold, then alternate deblocking vectors may be created, each advanced from the current deblocking vector in a respective dimension. The method may deblock the decoded picture according to each advanced vector and may estimate errors from each of the deblocking of each advanced vector. Finally, the deblocking vector may be revised for a next iteration according to a gradient derived from the estimated deblocking errors of the vector dimensions. This gradient-based search method may converge on a final set of deblocking parameters in an efficient manner.

    Abstract translation: 编码器执行用于选择编码视频的去块参数的迭代搜索方法。 根据该方法，可以根据与多维去块矢量相关联的参数解码解码图像，并且可以从其估计称为“解块错误”的错误。 如果估计的误差超过预定的阈值，则可以创建交替的去块矢量，每个向量在相应的维度上从当前解块矢量中提前。 该方法可以根据每个高级向量去解码图像，并且可以从每个先进向量的每个去块估计误差。 最后，可以根据从估计的矢量维度的解块失真导出的梯度来修正解块矢量进行下一次迭代。 这种基于梯度的搜索方法可以以有效的方式收敛于最终的一组去块参数。

    VIDEO CODING USING VECTOR QUANTIZED DEBLOCKING FILTERS
    9.
    发明申请
    VIDEO CODING USING VECTOR QUANTIZED DEBLOCKING FILTERS 审中-公开
    使用矢量定量去除滤波器进行视频编码

    公开(公告)号：US20120008687A1

    公开(公告)日：2012-01-12

    申请号：US12875052

    申请日：2010-09-02

    Applicant: Barin Geoffry Haskell

    Inventor： Barin Geoffry Haskell

    IPC: H04N11/02

    CPC classification number: H04N19/94 ,  H04N19/117 ,  H04N19/147 ,  H04N19/176 ,  H04N19/192 ,  H04N19/196 ,  H04N19/463 ,  H04N19/82 ,  H04N19/86

    Abstract: The present disclosure is directed to use of dynamically assignable deblocking filters as part of video coding/decoding operations. An encoder and a decoder each may store common codebooks that define a variety of deblocking filters that may be applied to recovered video data. During run time coding, an encoder calculates characteristics of an ideal deblocking filter to be applied to a mcblock being coded, one that would minimize coding errors when the mcblock would be recovered at decode. Once the characteristics of the ideal filter are identified, the encoder may search its local codebook to find stored parameter data that best matches parameters of the ideal filter. The encoder may code the reference block and transmit both the coded block and an identifier of the best matching filter to the decoder. The decoder may apply the deblocking filter to mcblock data when the coded block is decoded. If the deblocking filter is part of a prediction loop, the encoder also may apply the deblocking filter to coded mcblock data of reference frames prior to storing the decoded reference frame data in a reference picture cache.

    Abstract translation: 本公开涉及使用动态可分配去块滤波器作为视频编码/解码操作的一部分。 编码器和解码器可以存储定义可应用于恢复的视频数据的各种去块滤波器的公共码本。 在运行时间编码期间，编码器计算要应用于被编码的mcblock的理想去块滤波器的特性，当解码mc块将被恢复时，编码误差最小化。 一旦识别出理想滤波器的特性，编码器可以搜索其本地码本来找到与理想滤波器的参数最匹配的存储的参数数据。 编码器可以对参考块进行编码，并将编码块和最佳匹配滤波器的标识符传送给解码器。 当编码块被解码时，解码器可以将去块滤波器应用于mcblock数据。 如果解块滤波器是预测环路的一部分，则编码器还可以在将解码的参考帧数据存储在参考图像高速缓存之前将去块滤波器应用于参考帧的编码mcblock数据。

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