Scalable video coding with grid motion estimation and compensation
    2.
    发明授权
    Scalable video coding with grid motion estimation and compensation 失效
    具有网格运动估计和补偿的可扩展视频编码

    公开(公告)号:US08249159B2

    公开(公告)日:2012-08-21

    申请号:US11571268

    申请日:2005-06-23

    IPC分类号: H04N7/28 H04N11/02 H04N7/32

    摘要: A scalable coder having a grid motion estimation and compensation module (110), a motion compensation temporal filtering module (105), a scalable coding module (115), a discrete transformation module (120), and a packetization module (135). The grid-motion estimation and compensation module (110) outputs a scalable motion vector from the source video data, supplied resolution and bit rate parameters. The motion compensation temporal filtering module (105) generates, from the source video data and the scalable motion vector, a residual image corresponding to the difference between the present and previous image frames. The scalable coding module (115) is coupled to receive and encode the scalable motion vector. The discrete transformation module (120) is configured to receive and domain transform the supplied video to a sequence of coefficients. The packetization module is coupled to the scalable coding module (115) and the discrete transformation module (120), and is operable to combine the encoded scalable motion vector and the sequence of coefficients into a packet.

    摘要翻译: 一种具有网格运动估计和补偿模块(110),运动补偿时间滤波模块(105),可分级编码模块(115),离散变换模块(120)和分组化模块(135)的可缩放编码器。 网格运动估计和补偿模块(110)从源视频数据,提供的分辨率和比特率参数输出可缩放的运动矢量。 运动补偿时间滤波模块(105)从源视频数据和可伸缩运动矢量生成对应于当前和先前图像帧之间的差的残差图像。 可伸缩编码模块(115)被耦合以接收和编码可伸缩运动矢量。 离散变换模块(120)被配置为接收并且将所提供的视频域变换为系数序列。 分组化模块被耦合到可分级编码模块(115)和离散变换模块(120),并且可操作以将经编码的可缩放运动矢量和系数序列组合成分组。

    Fast mode decision algorithm for intra prediction for advanced video coding
    3.
    发明申请
    Fast mode decision algorithm for intra prediction for advanced video coding 审中-公开
    用于高级视频编码的帧内预测的快速模式决策算法

    公开(公告)号:US20070036215A1

    公开(公告)日:2007-02-15

    申请号:US10548120

    申请日:2004-03-03

    IPC分类号: H04N7/12 H04N11/04

    摘要: A method (400) and an apparatus for AVC intra prediction to code digital video comprising a plurality of pictures are disclosed. The method comprises the steps of: generating (410) edge directional information for each intra block of a digital picture; and choosing (420) most probable intra prediction modes for rate distortion optimisation dependent upon the generated edge directional information. The edge directional information may be generated by applying at least one edge operator to the digital picture. The edge direction histogram may sum up the amplitudes of pixels with similar 15 directions in the block. The method may further comprise the step of intra coding (430) a block of the digital picture using the chosen most probable intra prediction modes.

    摘要翻译: 公开了一种用于AVC帧内预测以编码包括多个图像的数字视频的方法(400)和装置。 该方法包括以下步骤:产生(410)数字图像的每个帧内的边缘方向信息; 并根据生成的边缘方向信息选择(420)用于速率失真优化的最可能的帧内预测模式。 可以通过将至少一个边缘算子应用于数字图像来生成边缘方向信息。 边缘方向直方图可以将块中具有相似15个方向的像素的幅度相加。 该方法还可以包括使用所选择的最可能的帧内预测模式对数字图像的块进行帧内编码(430)的步骤。

    Method for Encoding at Least One Digital Picture, Encoder, Computer Program Product
    6.
    发明申请
    Method for Encoding at Least One Digital Picture, Encoder, Computer Program Product 审中-公开
    用于编码至少一个数字图像,编码器,计算机程序产品的方法

    公开(公告)号:US20090129467A1

    公开(公告)日:2009-05-21

    申请号:US11910853

    申请日:2006-04-06

    IPC分类号: H04N7/32

    CPC分类号: H04N19/61 H04N19/30

    摘要: A method for encoding at least one digital picture is described, wherein a first representation of the picture is generated, a second representation of the picture is generated and a third representation of the picture is generated from the first representation of the picture and the second representation of the picture by predicting the coding information of the picture elements of the picture using the first representation of the picture and the second representation of the picture.

    摘要翻译: 描述了一种用于对至少一个数字图像进行编码的方法,其中生成图像的第一表示,生成图像的第二表示,并且从图像的第一表示和第二表示生成图像的第三表示 通过使用图像的第一表示和图像的第二表示来预测图像的图像元素的编码信息。