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192 条记录 (耗时 0.036 秒)

    Direct mode derivation process for error concealment
    71.
    发明申请
    Direct mode derivation process for error concealment 审中-公开
    用于错误隐藏的直接模式导出过程

    公开(公告)号：US20070014359A1

    公开(公告)日：2007-01-18

    申请号：US10573928

    申请日：2003-10-09

    申请人： Cristina Gomila ,  Jill MacDonald Boyce

    发明人： Cristina Gomila ,  Jill MacDonald Boyce

    IPC分类号： H04N11/02 ,  H04N11/04 ,  H04B1/66

    CPC分类号： H04N19/895 ,  H04N19/51 ,  H04N19/513 ,  H04N19/61

    摘要： Temporal concealment of missing/lost macro blocks relies on the direction mode derivation process typically standardized in video decoders. Upon detecting an error in the form of a picture (FIG. 1) a co-located macro block is found previously transmitted picture. The motion vector for that co-local macro block is determined (FIG. 2). The identified macro block is predicted by motion compensating data from a second previously transmitted picture in accordance with the motion vector determined for the co-located macro block (FIG. 3).

    摘要翻译： 丢失/丢失的宏块的时间隐藏取决于通常在视频解码器中标准化的方向模式导出过程。 在检测到图像形式的错误（图1）时，找到先前发送的相位的宏块。 确定该协同宏块的运动矢量（图2）。 通过根据为同位置宏块确定的运动向量（图3），通过来自第二先前发送的图像的运动补偿数据预测所识别的宏块。

    Deblocking filter conditioned on pixel brightness
    73.
    发明授权
    Deblocking filter conditioned on pixel brightness 有权
    去块滤光片适合像素亮度

    公开(公告)号：US06907079B2

    公开(公告)日：2005-06-14

    申请号：US10364430

    申请日：2003-02-11

    申请人： Cristina Gomila ,  Jill MacDonald Boyce

    发明人： Cristina Gomila ,  Jill MacDonald Boyce

    IPC分类号： H04N7/30 ,  H03M7/30 ,  H04N7/26 ,  H04N7/50 ,  H04B1/66

    CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/136 ,  H04N19/154 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/82

    摘要： An encoder, decoder, and corresponding method are disclosed for encoding pixel data as a plurality of block transform coefficients and decoding encoded block transform coefficients to provide reconstructed pixel data, the encoder and/or decoder includes a conditional deblocking filter for filtering only block transitions meeting pre-selected pixel brightness level criteria, where the conditional deblocking filter method includes receiving at least one first pixel adjacent to a block transition, providing a signal indicative of the brightness of the at least one first pixel, comparing the brightness signal with at least one of an upper brightness threshold and a lower brightness threshold, and conditionally filtering a plurality of adjacent pixels including the first pixel at the block transition in response to the brightness comparison.

    摘要翻译： 公开了一种用于将像素数据编码为多个块变换系数并对编码的块变换系数进行解码以提供重建的像素数据的编码器，解码器和相应方法，编码器和/或解码器包括条件去块滤波器，用于仅滤除块转换会议 预选像素亮度等级准则，其中条件去块滤波器方法包括接收与块转换相邻的至少一个第一像素，提供指示至少一个第一像素的亮度的信号，将亮度信号与至少一个 的上亮度阈值和较低亮度阈值，以及响应于亮度比较，有条件地过滤包括块转换处的第一像素的多个相邻像素。

    Video telecommunications server and method of providing video fast forward and reverse
    76.
    发明授权
    Video telecommunications server and method of providing video fast forward and reverse 失效
    视频电信服务器和提供视频快进和倒带的方法

    公开(公告)号：US6012091A

    公开(公告)日：2000-01-04

    申请号：US885911

    申请日：1997-06-30

    申请人： Jill MacDonald Boyce

    发明人： Jill MacDonald Boyce

    IPC分类号： G06T9/00 ,  H04N21/21 ,  H04N21/23 ,  H04N7/173

    CPC分类号： H04N21/21 ,  G06T9/004 ,  H04N21/23

    摘要： A video telecommunication server for use in providing a fast scan of a video telecommunication comprises a bitstream store for receiving and storing a coded input video telecommunication digital bitstream. The server further comprises a video decoder for decoding the received digital video bitstream and, in one embodiment, a representation of every nth frame of said decoded digital video signal is stored in a frame store depending on a desired speed-up rate, where n is greater than one. A video encoder reencodes the stored video telecommunication predictively such that every nth frame is predicted based on the preceding frame. A fast scan digital video bitstream is generated for output by the video encoder that represents the fast scan video telecommunication, either in a fast forward or fast reverse direction. A receiver for receiving a control input may receive data representing the direction of fast scan and the speed-up rate. In further embodiments, the video encoder comprises an intra frame encoder or provides for requesting intra frames from a transmitting video encoder at periodic intervals.

    摘要翻译： 用于提供视频通信的快速扫描的视频电信服务器包括用于接收和存储经编码的输入视频通信数字比特流的比特流存储。 服务器还包括用于对接收的数字视频比特流进行解码的视频解码器，并且在一个实施例中，所述解码的数字视频信号的每第n帧的表示根据期望的加速速率被存储在帧存储器中，其中n是 大于一。 视频编码器预测地重新编码存储的视频电信，使得每第n帧基于前一帧被预测。 生成快速扫描数字视频比特流，用于由代表快速扫描视频电信的视频编码器输出，无论是快进还是快速反向。 用于接收控制输入的接收器可以接收表示快速扫描方向和加速速率的数据。 在另外的实施例中，视频编码器包括帧内编码器或提供以周期性间隔从发射视频编码器请求帧内帧。

    Intra-coded video frame data processing methods and apparatus
    78.
    发明授权
    Intra-coded video frame data processing methods and apparatus 失效
    内编码视频帧数据处理方法和装置

    公开(公告)号：US5726711A

    公开(公告)日：1998-03-10

    申请号：US616303

    申请日：1996-03-15

    申请人： Jill MacDonald Boyce

    发明人： Jill MacDonald Boyce

    IPC分类号： H04N5/7826 ,  H04N5/783 ,  H04N7/26 ,  H04N7/30 ,  H04N7/46 ,  H04N7/50 ,  H04N9/804 ,  H04N9/82 ,  H04N21/4147 ,  H04N21/432 ,  H04N21/433 ,  H04N7/32

    CPC分类号： H04N5/783 ,  H04N19/132 ,  H04N19/184 ,  H04N19/192 ,  H04N19/37 ,  H04N19/40 ,  H04N19/427 ,  H04N19/428 ,  H04N19/587 ,  H04N19/59 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82 ,  H04N19/90 ,  H04N21/4147 ,  H04N21/4325 ,  H04N21/4334 ,  H04N19/13 ,  H04N19/30 ,  H04N19/91 ,  H04N5/78263 ,  H04N9/8042 ,  H04N9/8227

    摘要： Method and apparatus for generating a fully intra-coded video frame from a received progressive refresh bitstream representing a series of inter-coded video frames. Intra-coded macroblocks of received video frames are identified, selected, processed and stored to facilitate later combination into a single fully intra-coded composite video frame suitable for use during VTR trick play operation. As part of the intra-coded macroblock selection process, in various embodiments, the large sets of adjacent macroblocks are given priority over previously selected macroblocks that correspond to non-adjacent positions within a video frame or which correspond to a smaller set of adjacent video frames. As part of the macroblock processing performed prior to storage of selected intra-coded macroblocks, the amount of data used to represent each intra-coded macroblock is reduced and the macroblocks are processed so as to be represented in a consistent manner which facilitates the subsequent combination of intra-coded macroblocks from different frames into a single low resolution frame suitable for use during trick play operation.

    摘要翻译： 用于从接收的表示一系列帧间编码视频帧的逐行刷新位流产生全帧内编码视频帧的方法和装置。 识别，选择，处理和存储所接收的视频帧的帧内宏块，以便稍后组合成适合在VTR特技播放操作期间使用的单个完全帧内编码的复合视频帧。 作为帧内编码宏块选择处理的一部分，在各种实施例中，对于与视频帧内的非相邻位置对应的先前选择的宏块或相应于较小的相邻视频帧集合，大的相邻宏块组被赋予优先级 。 作为在存储所选择的帧内编码宏块之前执行的宏块处理的一部分，减少了用于表示每个帧内编码宏块的数据量，并且以一致的方式处理宏块以便于后续组合 来自不同帧的帧内编码宏块被适用于特技播放操作期间使用的单个低分辨率帧。

    Method and apparatus for fast mode decision for interframes
    80.
    发明授权
    Method and apparatus for fast mode decision for interframes 有权
    用于内部帧的快速模式决定的方法和装置

    公开(公告)号：US08385416B2

    公开(公告)日：2013-02-26

    申请号：US11662505

    申请日：2005-09-14

    申请人： Xiaoan Lu ,  Alexandros Tourapis ,  Jill MacDonald Boyce ,  Peng Yin

    发明人： Xiaoan Lu ,  Alexandros Tourapis ,  Jill MacDonald Boyce ,  Peng Yin

    IPC分类号： H04N7/12

    CPC分类号： H04N19/109 ,  H04N19/11 ,  H04N19/139 ,  H04N19/14 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19

    摘要： There is disclosed a video encoder and corresponding method for encoding video data for an image block. The video encoder performs a mode decision by performing initial motion estimation on only a subset of possible block sizes to output motion information corresponding thereto, and determining, based upon the motion information corresponding to only the subset of possible of block sizes and upon other image-related analysis data, whether other block sizes are to be evaluated.

    摘要翻译： 公开了用于编码图像块的视频数据的视频编码器和相应的方法。 视频编码器通过仅对可能的块大小的子集执行初始运动估计来执行模式决定，以输出与其对应的运动信息，并且基于仅对应于块大小的可能的子集的运动信息， 相关分析数据，是否评估其他块大小。