Scalable video coding with grid motion estimation and compensation
    3.
    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。

    Scalable Video Coding With Grid Motion Estimation and Compensation
    7.
    发明申请
    Scalable Video Coding With Grid Motion Estimation and Compensation 失效
    可视化视频编码与网格运动估计和补偿

    公开(公告)号:US20080013630A1

    公开(公告)日:2008-01-17

    申请号:US11571268

    申请日:2005-06-23

    IPC分类号: H04B1/66

    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。

    Method and an apparatus for controlling the rate of a video sequence; a video encoding device
    8.
    发明申请
    Method and an apparatus for controlling the rate of a video sequence; a video encoding device 有权
    用于控制视频序列的速率的方法和装置; 视频编码装置

    公开(公告)号:US20060140270A1

    公开(公告)日:2006-06-29

    申请号:US10528363

    申请日:2002-09-05

    摘要: A method for rate control for encoding video sequence, wherein the video sequence comprises a plurality of Group Of Pictures, wherein each Group of Picture comprises at least and I-frame and an Inter-frame, the rate control method comprising the following steps for the encoding of the Inter-frame in the Group of Picture: determining a desired frame rate based on an available bandwidth of a channel for transmitting the video sequence and an available computational resources for the encoding process; determining a target buffer level based on the desired frame rate and the position of the Inter-frame with respect to the I-frame; and determining a target bit rate based on the target buffer level and the available channel bandwidth, wherein the target bit rate is used for controlling the rate of encoding the video sequence.

    摘要翻译: 一种用于编码视频序列的速率控制的方法,其中所述视频序列包括多个图像组,其中每组图片至少包括I帧和帧间帧,所述速率控制方法包括以下步骤: 图像组中的帧间的编码:基于用于发送视频序列的信道的可用带宽和用于编码处理的可用计算资源来确定期望的帧速率; 基于期望的帧速率和帧间相对于I帧的位置来确定目标缓冲器级; 以及基于所述目标缓冲器电平和所述可用信道带宽来确定目标比特率,其中,所述目标比特率用于控制所述视频序列的编码速率。

    Method, Apparatus and Computer Program Product for Encoding Video Data
    9.
    发明申请
    Method, Apparatus and Computer Program Product for Encoding Video Data 审中-公开
    用于编码视频数据的方法,装置和计算机程序产品

    公开(公告)号:US20130177077A1

    公开(公告)日:2013-07-11

    申请号:US13809992

    申请日:2011-07-08

    IPC分类号: H04N7/26

    摘要: According to various embodiments, a method for encoding video data, and a corresponding apparatus and computer program product. The method includes: applying one of a first transform and a second transform to at least one row of a pixel block, and applying one of the first transform and the second transform to at least one column of the pixel block, based on a prediction mode of the pixel block, to transform between residual pixel values of the pixel block and residual transform coefficients of the pixel block. The method also includes: encoding the residual transform coefficients of the pixel block to generate encoded video data.

    摘要翻译: 根据各种实施例,一种用于编码视频数据的方法,以及相应的装置和计算机程序产品。 该方法包括:将第一变换和第二变换之一应用于像素块的至少一行,并且基于预测模式将第一变换和第二变换之一应用于像素块的至少一列 以在像素块的残留像素值和像素块的残差变换系数之间进行变换。 该方法还包括:对像素块的残差变换系数进行编码以产生编码视频数据。

    METHOD AND DEVICE FOR ALIGNING A PLURALITY OF DIGITAL PICTURES
    10.
    发明申请
    METHOD AND DEVICE FOR ALIGNING A PLURALITY OF DIGITAL PICTURES 有权
    用于对齐数字图像的方法和装置

    公开(公告)号:US20130044127A1

    公开(公告)日:2013-02-21

    申请号:US13572361

    申请日:2012-08-10

    IPC分类号: G09G5/00

    摘要: A method for aligning a plurality of first digital pictures. Each first digital picture includes a plurality of pixels wherein each pixel is associated with a pixel value. The method includes generating a second digital picture for each first digital picture. Generating the second digital picture for the first digital picture includes determining, for each of a plurality of pixels of the first digital picture, a number representing the pixel values of a plurality of pixels in a neighborhood of the pixel relatively to the pixel value of the pixel. The method further includes assigning the number as a pixel value to a pixel of the second digital image corresponding to the pixel of the first digital image. The method further includes generating aligning parameters based on the plurality of second digital pictures. The method further includes aligning the plurality of first digital pictures based on the aligning parameters.

    摘要翻译: 一种用于对准多个第一数字图像的方法。 每个第一数字图像包括多个像素,其中每个像素与像素值相关联。 该方法包括为每个第一数字图像生成第二数字图像。 为第一数字图像生成第二数字图像包括针对第一数字图像的多个像素中的每一个确定表示相对于像素值的像素的像素的像素值的数量 像素。 该方法还包括将该数量作为像素值分配给与第一数字图像的像素对应的第二数字图像的像素。 该方法还包括基于多个第二数字图像生成对准参数。 该方法还包括基于对准参数对准多个第一数字图像。