利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

73 条记录 (耗时 0.02 秒)

    Method and apparatus for encoding hybrid intra-inter coded blocks
    1.
    发明申请
    Method and apparatus for encoding hybrid intra-inter coded blocks 有权
    混合帧内编码块的编码方法和装置

    公开(公告)号：US20070047648A1

    公开(公告)日：2007-03-01

    申请号：US10569236

    申请日：2004-08-24

    申请人： Alexandros Tourapis ,  Jill Boyce ,  Peng Yin

    发明人： Alexandros Tourapis ,  Jill Boyce ,  Peng Yin

    IPC分类号： H04N11/04

    CPC分类号： H04N19/577 ,  H04N19/107 ,  H04N19/109 ,  H04N19/11 ,  H04N19/119 ,  H04N19/136 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86 ,  H04N19/895

    摘要： A hybrid intra-inter bi-predictive (or multi-predictive) coding mode allows both intraframe (intra) and interframe (inter) predictions to be combined together for hybrid-encoding a current macroblock or a subblock Bi-prediction may be used also in I-pictures, combining two intra predictions that use two different intra prediction directions. A video encoder processes data representing a two-dimensional video image which has been produced by a conventional commercially available video camera. The video encoder is adapted to select, for coding a current macroblock, between an intra encoding mode, an P-frame inter encoding mode, a B-frame bi-predictive inter mode, and a hybrid intra-inter bi-predictive encoding mode. A video decoder (800) receives and decodes a data stream that may contain a block/macroblock encoded in accordance with the hybrid intra-inter bi-predictive encoding mode.

    摘要翻译： 混合帧内双向预测（或多预测）编码模式允许将帧内（帧内）和帧间（帧间）预测组合在一起用于混合编码当前宏块或子块双预测也可以用于 I图像，组合使用两个不同的帧内预测方向的两个帧内预测。 视频编码器处理表示由传统市售摄像机产生的二维视频图像的数据。 视频编码器适于在帧内编码模式，P帧编码模式，B帧双预测帧间模式和混合帧内双向预测编码模式之间选择用于对当前宏块进行编码。 视频解码器（800）接收并解码可以包含根据混合帧内双向预测编码模式编码的块/宏块的数据流。

    Technique for simulating film grain using frequency filtering
    2.
    发明申请
    Technique for simulating film grain using frequency filtering 有权
    使用频率滤波模拟胶片颗粒的技术

    公开(公告)号：US20070036452A1

    公开(公告)日：2007-02-15

    申请号：US10571148

    申请日：2004-09-22

    申请人： Joan Llach ,  Jill Boyce ,  Alexandros Tourapis

    发明人： Joan Llach ,  Jill Boyce ,  Alexandros Tourapis

    IPC分类号： G06K9/40

    CPC分类号： H04N5/262 ,  G06T5/002 ,  G06T5/10 ,  G06T11/001 ,  G06T2207/20021 ,  G06T2207/20052 ,  G06T2207/20204 ,  H04N19/86

    摘要： Simulation of film grain in an image can occur by compressing a video image, then transmitting compressed video together with a message containing at least one parameter indicative of the original film grain, to a decoder, and restoring the original grainy appearance of images by having the decoder simulating film grain based on the content of the film grain message. To improve efficiency, one or more parameters of film grain information undergo scaling in accordance with a target pixel block size for pixel blocks in the image. Such scaling allows for the use of conventional circuitry for performing block-based operations in connection with the film grain simulation.

    摘要翻译： 图像中的胶片颗粒的模拟可以通过压缩视频图像，然后将压缩视频与包含至少一个表示原始胶片颗粒的参数的消息一起发送到解码器，并且通过使图像恢复原始的颗粒状外观， 基于胶片信息内容的解码器模拟胶片颗粒。 为了提高效率，胶片颗粒信息的一个或多个参数根据图像中的像素块的目标像素块尺寸进行缩放。 这种缩放允许使用常规电路来执行与胶片颗粒模拟相关的基于块的操作。

    Method and apparatus for decoding hybrid intra-inter coded blocks
    3.
    发明申请
    Method and apparatus for decoding hybrid intra-inter coded blocks 有权
    混合帧内编码块的解码方法和装置

    公开(公告)号：US20070009044A1

    公开(公告)日：2007-01-11

    申请号：US10569319

    申请日：2004-08-24

    申请人： Alexandros Tourapis ,  Jill Boyce ,  Peng Yin

    发明人： Alexandros Tourapis ,  Jill Boyce ,  Peng Yin

    IPC分类号： H04N11/02 ,  H04N7/12 ,  H04N11/04 ,  H04B1/66

    CPC分类号： H04N19/577 ,  H04N19/103 ,  H04N19/109 ,  H04N19/11 ,  H04N19/119 ,  H04N19/136 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/895

    摘要： A hybrid intra-inter bi-predictive (or multi-predictive) coding mode allows both intraframe (intra) and interframe (inter) predictions to be combined together for hybrid-encoding a current macroblock or a subblock. Bi-prediction may be used also in I-pictures, combining two intra predictions that use two different intra prediction directions. A video encoder processes data representing a two-dimensional video image which has been produced by a conventional commercially available video camera. The video encoder is adapted to select, for coding a current macroblock, between an intra encoding mode, an P-frame inter encoding mode, a B-frame bi-predictive inter mode, and a hybrid intra-inter bi-predictive encoding mode. A video decoder receives and decodes a data stream that may contain a block/macroblock encoded in accordance with the hybrid intra-inter bi-predictive encoding mode.

    摘要翻译： 混合帧内双向预测（或多预测）编码模式允许将帧内（帧内）和帧间（帧间）预测组合在一起，以对当前宏块或子块进行混合编码。 双预测也可以用在I图像中，组合使用两个不同帧内预测方向的两个帧内预测。 视频编码器处理表示由传统市售摄像机产生的二维视频图像的数据。 视频编码器适于在帧内编码模式，P帧编码模式，B帧双预测帧间模式和混合帧内双向预测编码模式之间选择用于对当前宏块进行编码。 视频解码器接收并解码可以包含根据混合帧内双向预测编码模式编码的块/宏块的数据流。

    Method and apparatus for minimizing number of reference pictures used for inter-coding
    7.
    发明申请
    Method and apparatus for minimizing number of reference pictures used for inter-coding 有权
    用于最小化用于帧间编码的参考图像的数量的方法和装置

    公开(公告)号：US20070019724A1

    公开(公告)日：2007-01-25

    申请号：US10569168

    申请日：2004-08-24

    申请人： Alexandros Tourapis ,  Jill Boyce

    发明人： Alexandros Tourapis ,  Jill Boyce

    IPC分类号： H04N7/12 ,  H04N11/04 ,  H04B1/66

    CPC分类号： H04N19/573 ,  H04N19/105 ,  H04N19/172 ,  H04N19/46 ,  H04N19/61

    摘要： A method for minimizing and optimizing a list of active reference pictures to be used for (forward or backward) inter coding of a current picture, or of a pixel region (e.g., video object) within the current picture. Setting the number of active reference pictures in a list equal to one based upon one or more decisions related to the pixel data and movement between the current picture and one or more reference pictures. Otherwise, minimizing the number of active reference pictures in the list based upon one or more other decisions related to the pixel data and movement between the current picture and one or more reference pictures. Minimizing the number of active reference pictures in a second reference picture list-based upon the utilization of reference pictures in the first reference picture list. A video encoder processes data representing a two-dimensional video image which has been produced by a conventional commercially available video camera. The video encoder is adapted to determine, select, and to minimize the number of active reference pictures to be used to inter code a current picture. The bit stream transmitted by the encoder can be decoded by decoders of the related art.

    摘要翻译： 一种用于最小化和优化用于当前图像或当前图像内的像素区域（例如，视频对象）的（前向或后向）编码的活动参考图像的列表的方法。 基于与像素数据相关的一个或多个决定以及当前图片与一个或多个参考图片之间的移动，将列表中的有效参考图片的数量设置为等于1。 否则，基于与像素数据相关的一个或多个其他决定以及当前图片与一个或多个参考图片之间的移动，使列表中的活动参考图片的数量最小化。 基于第一参考图片列表中的参考图片的利用，使第二参考图片列表中的活动参考图片的数量最小化。 视频编码器处理表示由传统市售摄像机产生的二维视频图像的数据。 视频编码器适于确定，选择和最小化要用于对当前图像进行编码的活动参考图像的数量。 由编码器发送的比特流可以由相关技术的解码器解码。

    Method And Apparatus For Complexity Scalable Video Decoder
    9.
    发明申请
    Method And Apparatus For Complexity Scalable Video Decoder 有权
    复杂度可视化解码器的方法和装置

    公开(公告)号：US20070211798A1

    公开(公告)日：2007-09-13

    申请号：US10593915

    申请日：2005-03-31

    申请人： Jill Boyce ,  Alexandros Tourapis

    发明人： Jill Boyce ,  Alexandros Tourapis

    IPC分类号： H04N11/02 ,  H04N7/12

    CPC分类号： H04N19/59 ,  H04N19/33 ,  H04N19/523 ,  H04N19/61

    摘要： A video decoder, a video decoding method, a video encoder and a video encoding method are disclosed. A video decoder for decoding a video bitstream for an image block includes a motion vector resolution reducer and a motion compensator. The motion vector resolution reducer is for receiving decoded high resolution motion vectors included in the video bitstream and for reducing an accuracy of the high resolution motion vectors to correspond to a low resolution. The motion compensator, in signal communication with the motion vector resolution reducer, is for forming a motion compensated high resolution prediction using the reduced accuracy motion vectors. The video encoder for encoding scalable video comprises a motion compensator for forming a motion compensated full resolution prediction and combining the motion compensated full resolution prediction from an image block to form a prediction residual. The prediction residual is downsampled to form a low resolution downsampled prediction residual and then coded.

    摘要翻译： 公开了视频解码器，视频解码方法，视频编码器和视频编码方法。 用于解码用于图像块的视频位流的视频解码器包括运动矢量分辨率降低器和运动补偿器。 运动矢量分辨率降低器用于接收包括在视频比特流中的解码的高分辨率运动矢量，并且用于降低高分辨率运动矢量的精度以对应于低分辨率。 与运动矢量分辨率降低器进行信号通信的运动补偿器用于使用精度较低的运动矢量形成运动补偿的高分辨率预测。 用于编码可伸缩视频的视频编码器包括运动补偿器，用于形成运动补偿全分辨率预测，并组合来自图像块的运动补偿全分辨率预测以形成预测残差。 预测残差被下采样以形成低分辨率下采样预测残差，然后被编码。