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    • 2. 发明授权
    • System and method for motion vector collection for motion compensated interpolation of digital video
    • 用于数字视频运动补偿插值的运动矢量采集系统和方法
    • US08565309B2
    • 2013-10-22
    • US11846464
    • 2007-08-28
    • Surapong LertrattanapanichMahesh ChappalliYeong-Taeg Kim
    • Surapong LertrattanapanichMahesh ChappalliYeong-Taeg Kim
    • H04N7/12H04N11/02H04N11/04
    • H04N19/553H04N19/51H04N19/513
    • A system and method of collection motion vectors for motion compensated interpolation of digital video are disclosed. For example, one embodiment includes a method of identifying motion vectors for interpolating a portion of a digital video signal. The method comprises identifying a plurality of motion vectors indicative of differences between first and second frames of a digital video signal and projecting each of the motion vectors to a location within a third frame at a time associated with the third frame. The method further includes determining a measure of overlap of each projected location with a portion of a third frame to be interpolated, selecting at least one motion vector based on the measure, and generating at least a portion of a third frame based on the selected at least one motion vector selected. Other embodiments include a system and device configured to perform the method.
    • 公开了一种收集数字视频运动补偿插值运动矢量的系统和方法。 例如,一个实施例包括识别用于内插数字视频信号的一部分的运动矢量的方法。 该方法包括识别表示数字视频信号的第一和第二帧之间的差异的多个运动矢量,并且将每个运动矢量投影到与第三帧相关联的时间内的第三帧内的位置。 该方法还包括确定每个投影位置与要内插的第三帧的一部分的重叠的度量,基于该度量来选择至少一个运动矢量,以及基于所选择的位置生成第三帧的至少一部分 选择最少一个运动矢量。 其他实施例包括被配置为执行该方法的系统和设备。
    • 3. 发明申请
    • SYSTEM AND METHOD FOR MOTION VECTOR COLLECTION FOR MOTION COMPENSATED INTERPOLATION OF DIGITAL VIDEO
    • 运动矢量采集系统和方法运动补偿插值数字视频
    • US20090060041A1
    • 2009-03-05
    • US11846464
    • 2007-08-28
    • Surapong LertrattanapanichMahesh ChappalliYeong-Taeg Kim
    • Surapong LertrattanapanichMahesh ChappalliYeong-Taeg Kim
    • H04N7/32H04N9/64
    • H04N19/553H04N19/51H04N19/513
    • A system and method of collection motion vectors for motion compensated interpolation of digital video are disclosed. For example, one embodiment includes a method of identifying motion vectors for interpolating a portion of a digital video signal. The method comprises identifying a plurality of motion vectors indicative of differences between first and second frames of a digital video signal and projecting each of the motion vectors to a location within a third frame at a time associated with the third frame. The method further includes determining a measure of overlap of each projected location with a portion of a third frame to be interpolated, selecting at least one motion vector based on the measure, and generating at least a portion of a third frame based on the selected at least one motion vector selected. Other embodiments include a system and device configured to perform the method.
    • 公开了一种收集数字视频运动补偿插值运动矢量的系统和方法。 例如,一个实施例包括识别用于内插数字视频信号的一部分的运动矢量的方法。 该方法包括识别表示数字视频信号的第一和第二帧之间的差异的多个运动矢量,并且将每个运动矢量投影到与第三帧相关联的时间内的第三帧内的位置。 该方法还包括确定每个投影位置与要内插的第三帧的一部分的重叠的度量,基于该度量来选择至少一个运动矢量,以及基于所选择的位置生成第三帧的至少一部分 选择最少一个运动矢量。 其他实施例包括被配置为执行该方法的系统和设备。
    • 6. 发明申请
    • System and method for introducing virtual zero motion vector candidates in areas of a video sequence involving overlays
    • 在涉及重叠的视频序列的区域中引入虚拟零运动矢量候选的系统和方法
    • US20080198931A1
    • 2008-08-21
    • US11709047
    • 2007-02-20
    • Mahesh ChappalliYeong-Taeg Kim
    • Mahesh ChappalliYeong-Taeg Kim
    • H04N11/04
    • H04N19/577H04N19/51H04N19/61
    • Systems and methods for efficiently encoding and/or reformatting video data including transparent overlay portions are disclosed. In one embodiment, the method includes using two prediction regions for predicting the portion of the video including the transparent overlay. In one embodiment, a first of the two prediction regions is determined based on motion compensated prediction in reference to another video frame and a second of the two prediction regions is a collocated portion of video in another frame as referenced by a virtual zero motion vector. A mixing weight factor to be used for combining the two predictions is determined. In one embodiment, the mixing weight factor is determined based on the relative values of two error metrics, a first error metric related to the motion compensated prediction and a second error metric related to the collocated prediction of the virtual zero motion vector.
    • 公开了用于有效编码和/或重新格式化包括透明覆盖部分的视频数据的系统和方法。 在一个实施例中,该方法包括使用两个预测区域来预测包括透明覆盖层的视频的部分。 在一个实施例中,参考另一视频帧,基于运动补偿预测来确定两个预测区域中的第一个,并且两个预测区域中的第二个预测区域是由虚拟零运动向量参考的另一个帧中的视频的并置部分。 确定用于组合两个预测的混合权重因子。 在一个实施例中,基于两个误差度量的相对值,与运动补偿预测相关的第一误差度量和与虚拟零运动矢量的并置预测相关的第二误差量度来确定混合权重因子。
    • 8. 发明授权
    • System and method for introducing virtual zero motion vector candidates in areas of a video sequence involving overlays
    • 在涉及重叠的视频序列的区域中引入虚拟零运动矢量候选的系统和方法
    • US08630346B2
    • 2014-01-14
    • US11709047
    • 2007-02-20
    • Mahesh ChappalliYeong-Taeg Kim
    • Mahesh ChappalliYeong-Taeg Kim
    • H04N7/12
    • H04N19/577H04N19/51H04N19/61
    • Systems and methods for efficiently encoding and/or reformatting video data including transparent overlay portions are disclosed. In one embodiment, the method includes using two prediction regions for predicting the portion of the video including the transparent overlay. In one embodiment, a first of the two prediction regions is determined based on motion compensated prediction in reference to another video frame and a second of the two prediction regions is a collocated portion of video in another frame as referenced by a virtual zero motion vector. A mixing weight factor to be used for combining the two predictions is determined. In one embodiment, the mixing weight factor is determined based on the relative values of two error metrics, a first error metric related to the motion compensated prediction and a second error metric related to the collocated prediction of the virtual zero motion vector.
    • 公开了用于有效编码和/或重新格式化包括透明覆盖部分的视频数据的系统和方法。 在一个实施例中,该方法包括使用两个预测区域来预测包括透明覆盖层的视频的部分。 在一个实施例中,参考另一视频帧,基于运动补偿预测来确定两个预测区域中的第一个,并且两个预测区域中的第二个预测区域是由虚拟零运动向量参考的另一个帧中的视频的并置部分。 确定用于组合两个预测的混合权重因子。 在一个实施例中,基于两个误差度量的相对值,与运动补偿预测相关的第一误差度量和与虚拟零运动矢量的并置预测相关的第二误差量度来确定混合权重因子。
    • 10. 发明授权
    • System and method for phase adaptive occlusion detection based on motion vector field in digital video
    • 基于数字视频中运动矢量场的相位自适应遮挡检测系统及方法
    • US08254444B2
    • 2012-08-28
    • US11748377
    • 2007-05-14
    • Mahesh Chappalli
    • Mahesh Chappalli
    • H04N7/12
    • H04N19/533H04N7/0132H04N19/557H04N19/57H04N19/577
    • Systems and methods for efficiently reformatting video data in regions of video including occlusions are disclosed. In one embodiment, the method includes determining multiple motion vectors that link/relate matching blocks of two reference frames and calculating a measure related to overlap area of the matching blocks in one or both of the reference frames with a block to be constructed in an intermediate frame. The measure related to overlap area takes into account a particular interpolation phase of the frame being constructed in relation to the two reference frames. In one embodiment, a ranking of the measure related to overlap areas is used to classify the block to be constructed according to a degree of occlusion. In another aspect the location of the matching blocks in one or both of the reference frames is used in the classification of the block to be constructed.
    • 公开了用于在包括遮挡的视频区域中有效地重新格式化视频数据的系统和方法。 在一个实施例中,该方法包括确定链接/关联两个参考帧的匹配块的多个运动向量,并且在一个或两个参考帧中计算与匹配块的重叠面积相关的度量,以便在中间 帧。 与重叠区域相关的度量考虑到相对于两个参考帧构造的帧的特定内插相位。 在一个实施例中,使用与重叠区域相关的度量的排序来根据遮挡程度对要构建的块进行分类。 在另一方面,在要构建的块的分类中使用匹配块在一个或两个参考帧中的位置。