Two pass rate control techniques for video coding using a min-max approach
    1.
    发明授权
    Two pass rate control techniques for video coding using a min-max approach 有权
    两种通过速率控制技术,用于使用最小 - 最大方法进行视频编码

    公开(公告)号:US08379721B2

    公开(公告)日:2013-02-19

    申请号:US11303618

    申请日:2005-12-15

    IPC分类号: H04N11/04

    摘要: This disclosure describes rate control techniques that can improve video coding based on a “two-pass” approach. The first pass codes a video sequence using a first set of quantization parameters (QPs) for the purpose of estimating rate-distortion characteristics of the video sequence based on the statistic of the first pass. A second set of QPs can then be defined for a second coding pass. The estimated rate-distortion characteristics of the first pass are used to select Qps for the second pass in a manner that minimizes quality fluctuation between the frames of the video sequence. Furthermore, selection of the second set of QPs may also substantially maximize quality of the frames at the substantially minimized quality flucuation in order to achieve low average frame distortion with the minimized quality fluctuation.

    摘要翻译: 本公开描述了可以基于双向方法改进视频编码的速率控制技术。 第一次通过使用第一组量化参数(QP)编码视频序列,以便基于第一遍的统计量来估计视频序列的速率失真特性。 然后可以为第二编码通道定义第二组QP。 第一遍的估计速率 - 失真特性用于以最小化视频序列的帧之间的质量波动的方式来选择第二遍的Qps。 此外,第二组QP的选择也可以在基本上最小化的质量流量下基本上最大化帧的质量,以便以最小化的质量波动实现低平均帧失真。

    Two pass rate control techniques for video coding using rate-distortion characteristics
    2.
    发明授权
    Two pass rate control techniques for video coding using rate-distortion characteristics 有权
    用于使用速率失真特性的视频编码的两个合格率控制技术

    公开(公告)号:US07876819B2

    公开(公告)日:2011-01-25

    申请号:US11303617

    申请日:2005-12-15

    IPC分类号: H04N11/02

    摘要: This disclosure describes rate control techniques that can improve video coding based on a “two-pass” approach. The first pass codes a video sequence using a first set of quantization parameters (QPs) for the purpose of estimating rate-distortion characteristics of the video sequence based on the statistics of the first pass. A second set of QPs can then be defined for a second coding pass. The estimated rate-distortion characteristics of the first pass are used to select QPs for the second pass in a manner that minimizes distortion of the frames of the video sequence.

    摘要翻译: 本公开描述了可以基于“双程”方法改进视频编码的速率控制技术。 第一次通过使用第一组量化参数(QP)编码视频序列,以便基于第一遍的统计来估计视频序列的速率失真特性。 然后可以为第二编码通道定义第二组QP。 第一遍的估计速率失真特性用于以使视频序列的帧的失真最小化的方式来选择第二遍的QP。

    Macroblock level bit allocation
    3.
    发明授权
    Macroblock level bit allocation 有权
    宏块级别位分配

    公开(公告)号:US07848409B2

    公开(公告)日:2010-12-07

    申请号:US11120389

    申请日:2005-05-02

    IPC分类号: H04N7/12

    摘要: The disclosure is directed to video processing. The various video processing techniques include generating blocks of information for a frame of video, allocating bits from a bit budget to each of the blocks, the number of bits being allocated to each of the blocks being a function of the information contained therein, and using the bits allocated to each of the blocks to represent the information contained therein.

    摘要翻译: 本公开涉及视频处理。 各种视频处理技术包括生成视频帧的信息块,从比特预算分配比特到每个块,分配给每个块的比特数是作为其中包含的信息的函数,并且使用 分配给每个块的位表示其中包含的信息。

    Two pass rate control techniques for video coding using rate-distortion characteristics
    4.
    发明申请
    Two pass rate control techniques for video coding using rate-distortion characteristics 有权
    用于使用速率失真特性的视频编码的两个合格率控制技术

    公开(公告)号:US20070064793A1

    公开(公告)日:2007-03-22

    申请号:US11303617

    申请日:2005-12-15

    IPC分类号: H04N11/04 H04N7/12

    摘要: This disclosure describes rate control techniques that can improve video coding based on a “two-pass” approach. The first pass codes a video sequence using a first set of quantization parameters (QPs) for the purpose of estimating rate-distortion characteristics of the video sequence based on the statistics of the first pass. A second set of QPs can then be defined for a second coding pass. The estimated rate-distortion characteristics of the first pass are used to select QPs for the second pass in a manner that minimizes distortion of the frames of the video sequence.

    摘要翻译: 本公开描述了可以基于“双程”方法改进视频编码的速率控制技术。 第一次通过使用第一组量化参数(QP)编码视频序列,以便基于第一遍的统计来估计视频序列的速率失真特性。 然后可以为第二编码通道定义第二组QP。 第一遍的估计速率失真特性用于以使视频序列的帧的失真最小化的方式来选择第二遍的QP。

    Two pass rate control techniques for video coding using a min-max approach
    7.
    发明申请
    Two pass rate control techniques for video coding using a min-max approach 有权
    两种通过速率控制技术,用于使用最小 - 最大方法进行视频编码

    公开(公告)号:US20070064794A1

    公开(公告)日:2007-03-22

    申请号:US11303618

    申请日:2005-12-15

    IPC分类号: H04N11/04 H04N7/12

    摘要: This disclosure describes rate control techniques that can improve video coding based on a “two-pass” approach. The first pass codes a video sequence using a first set of quantization parameters (QPs) for the purpose of estimating rate-distortion characteristics of the video sequence based on the statistic of the first pass. A second set of QPs can then be defined for a second coding pass. The estimated rate-distortion characteristics of the first pass are used to select Qps for the second pass in a manner that minimizes quality fluctuation between the frames of the video sequence. Furthermore, selection of the second set of QPs may also substantially maximize quality of the frames at the substantially minimized quality flucuation in order to achieve low average frame distortion with the minimized quality fluctuation

    摘要翻译: 本公开描述了可以基于“双程”方法改进视频编码的速率控制技术。 第一次通过使用第一组量化参数(QP)编码视频序列,以便基于第一遍的统计量来估计视频序列的速率失真特性。 然后可以为第二编码通道定义第二组QP。 第一遍的估计速率 - 失真特性用于以最小化视频序列的帧之间的质量波动的方式来选择第二遍的Qps。 此外,第二组QP的选择也可以在基本上最小化的质量流量下基本上使帧质量最大化,以便以最小化的质量波动来实现低平均帧失真

    Zoomable content recommendation system
    9.
    发明授权
    Zoomable content recommendation system 有权
    可缩放内容推荐系统

    公开(公告)号:US08869211B2

    公开(公告)日:2014-10-21

    申请号:US13663706

    申请日:2012-10-30

    申请人: Haohong Wang

    发明人: Haohong Wang

    摘要: A method is provided for a content recommendation module. The method includes receiving a user input related to viewing contents from a user and determining whether a recommendation pool containing a plurality of selected recommendation candidates has been changed corresponding to the input. The method also includes, when the recommendation pool has been changed, mapping the plurality of selected recommendation candidates in the changed recommendation pool into a hierarchical data structure with a plurality of levels such that each of the plurality of levels acts as a stage of a zoom operation on the selected recommendation candidates. Further, the method includes rendering mapped recommendation candidates from the plurality of levels to be displayed to the user.

    摘要翻译: 提供了一种用于内容推荐模块的方法。 该方法包括从用户接收与观看内容相关的用户输入,并且确定包含多个所选推荐候选的推荐池是否已经相应于输入而改变。 该方法还包括当推荐池已经被改变时,将改变的推荐池中的多个选择的推荐候选映射到具有多个级别的分级数据结构,使得多个级别中的每一个级别作为缩放级 对所选推荐候选人的操作。 此外,该方法包括将来自多个级别的映射的推荐候选图像呈现给用户。

    Stereo image and video directional mapping of offset
    10.
    发明授权
    Stereo image and video directional mapping of offset 有权
    立体图像和视频方向映射偏移

    公开(公告)号:US08456515B2

    公开(公告)日:2013-06-04

    申请号:US11493434

    申请日:2006-07-25

    IPC分类号: H04N13/00

    摘要: A method and apparatus for generating stereoscopic images of a scene is described. The apparatus may have a first image sensor, a second image sensor spaced apart from the first image sensor, a diversity combine module to combine image data from the first and second image sensors, and an image processing module configured to process combined image data from the diversity combine module may be used to generate stereoscopic images of a scene.

    摘要翻译: 描述用于产生场景的立体图像的方法和装置。 该装置可以具有第一图像传感器,与第一图像传感器间隔开的第二图像传感器,用于组合来自第一和第二图像传感器的图像数据的分集组合模块,以及被配置为处理来自第一图像传感器的组合图像数据的图像处理模块 分集组合模块可用于生成场景的立体图像。