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1. 发明申请

WO2017105391A1 A METHOD TO ENCODE VIDEO WITH CLOSE MULTIPLE SCENE CHANGES 审中-公开
标题翻译：一种通过关闭多场景变化来编码视频的方法
公开(公告)号：WO2017105391A1
公开(公告)日：2017-06-22
申请号：PCT/US2015/065568
申请日：2015-12-14
申请人： ARRIS ENTERPRISES, INC.
发明人： ZHOU, Wei , CHANDRA, Swaroop , MICHELSEN, Wayne D. , PERERA, Jane
IPC分类号： H04N19/142 , H04N19/179 , H04N19/107 , H04N19/14 , H04N19/87
CPC分类号： H04N19/124 , H04N19/107 , H04N19/14 , H04N19/142 , H04N19/159 , H04N19/172 , H04N19/179 , H04N19/87
摘要： A video encoding method is provided when three scenes are separated by two closely spaced scene changes. For scene changes spaced greater than a threshold, scene changes are programmed with I frames in a normal fashion. If less than the threshold, the method encodes depending on complexity of the first, second and third scene to determine how to encode the scene changes. To compare complexities, the process begins by using X 1 , X 2 , and X 3 to note respectively the complexities of the first, the second and the third scenes. If the absolute difference of X 1 and X 2 is higher than a first threshold and the absolute difference of X 2 and X 3 is higher than a second threshold, the first scene change is more significant than the second scene change, so in that case the process encodes the first scene change as an I-frame and picks a quantization parameter (QP) based on the complexity blended from the complexity of scene 2 (X 2 ) and scene 3 (X 3 ).
摘要翻译：当三个场景由两个紧密间隔的场景变化分开时，提供视频编码方法。对于间隔大于阈值的场景变化，以正常方式用I帧编程场景变化。如果小于阈值，则该方法根据第一，第二和第三场景的复杂度进行编码，以确定如何编码场景变化。为了比较复杂性，该过程首先使用X _{1 ，X _{2 和X _{3 分别记录第一个，第二个和第三个场景。如果X 1和X 2的绝对差高于第一阈值并且X 2和X 3的绝对差 <第二场景变化比第二场景变化更重要，所以在这种情况下，该过程将第一场景变化编码为I帧并且基于第二场景变化选择量化参数（QP）从场景2（X _{2 ）和场景3（X _{3 ）的复杂性融合了复杂性。}}}}}

2. 发明申请

WO2016111800A1 USING MOTION COMPENSATED TEMPORAL FILTER (MCTF) STATISTICS FOR SCENE CHANGE DETECTION WHEN A FADE, DISSOLVE OR CUT OCCURS 审中-公开
标题翻译：使用运动补偿时间过滤器（MCTF）统计数据进行场景变化检测时，如果FADE，DISSOLVE或CUT OCCURS
公开(公告)号：WO2016111800A1
公开(公告)日：2016-07-14
申请号：PCT/US2015/064714
申请日：2015-12-09
申请人： ARRIS ENTERPRISES, INC.
发明人： MICHELSEN, Wayne D. , CHANDRA, Swaroop , ZHOU, Wei , PERERA, Jane
IPC分类号： H04N19/87 , H04N19/172 , H04N19/142 , H04N19/107 , H04N19/615 , H04N19/146 , H04N19/194
CPC分类号： H04N19/87 , H04N19/107 , H04N19/142 , H04N19/146 , H04N19/172 , H04N19/194 , H04N19/51 , H04N19/615
摘要： A method is provided to better detect a scene change to provide a prediction to an encoder to enable more efficient encoding. The method uses a Motion Compensated Temporal Filter (MCTF) that provides motion estimation and is located prior to an encoder. The MCTF provides a Motion Compensated Residual (MCR) used to detect the scene change transition. When a scene is relatively stable, the MCR score is also relatively stable. However, when a scene transition is in process, the MCR score behavior changes, Algorithmically, the MCR score is used by comparing the sliding mean of the MCR score to the sliding median. This comparison highlights the transition points. In the case of a scene cut, the MCR score exhibits a distinct spike. In the case of a fade or dissolve, the MCR score exhibits a transitional period of degradation followed by recovery. By implementing the above detection using the MCR, the location of the I-pictures in the downstream encoding process can be accurately determined for the encoder.
摘要翻译：提供了一种方法来更好地检测场景变化以向编码器提供预测以实现更有效的编码。该方法使用提供运动估计并位于编码器之前的运动补偿时间滤波器（MCTF）。 MCTF提供了用于检测场景变化转换的运动补偿残差（MCR）。当场景相对稳定时，MCR评分也相对稳定。然而，当场景转换正在进行时，MCR评分行为发生变化，从算法上，通过比较MCR评分的滑动平均值与滑动中位数来使用MCR分数。这个比较突出了过渡点。在场景切割的情况下，MCR分数显示出明显的高峰。在褪色或溶解的情况下，MCR评分显示出退化的过渡期，然后恢复。通过使用MCR实现上述检测，可以对编码器准确地确定下游编码处理中的I图像的位置。

3. 发明申请

WO2016111799A1 A METHOD OF ENCODING VIDEO WITH FILM GRAIN 审中-公开
标题翻译：一种用薄膜编码视频的方法
公开(公告)号：WO2016111799A1
公开(公告)日：2016-07-14
申请号：PCT/US2015/064703
申请日：2015-12-09
申请人： ARRIS ENTERPRISES, INC.
发明人： ZHOU, Wei , PERERA, Jane , MICHELSEN, Wayne D. , CHANDRA, Swaroop
IPC分类号： H04N19/115 , H04N19/51 , H04N19/124 , H04N19/137 , H04N19/179 , H04N19/86 , H04N19/593
CPC分类号： H04N19/184 , H04N19/115 , H04N19/117 , H04N19/119 , H04N19/124 , H04N19/136 , H04N19/137 , H04N19/179 , H04N19/51 , H04N19/593 , H04N19/70 , H04N19/85 , H04N19/86
摘要： A system for providing improved video quality and compression efficiency during encoding by detecting video segments having film grain approaching the "Red Lady" problem. The system detects when film grain approaches the level of the "Red Lady" problem by measuring frame-by-frame temporal differences (ME scores). From the ME scores, two key indicators are identified: (1) The average temporal difference in frames with an intermediate motion level higher than frames of non-noisy video; and (2) The fluctuation of the temporal differences between frames in a group is very small. When these indicators identify a high film video, a signal is provided to an encoder which allocates less bits to I frames and more bits to P and B frames than for other frames of video without comparable film grain.
摘要翻译：一种用于通过检测具有接近“红女士”问题的胶片颗粒的视频片段来在编码期间提供改善的视频质量和压缩效率的系统。系统通过测量逐帧时间差异（ME分数）来检测胶片颗粒何时接近“红女士”问题的水平。从ME得分，确定了两个关键指标：（1）中间运动水平高于非嘈杂视频帧的帧的平均时间差; 和（2）一组中帧之间的时间差异的波动非常小。当这些指示符识别高胶片视频时，将信号提供给编码器，其向I帧分配较少的比特，并且向P和B帧分配比对于没有可比胶片颗粒的其他视频帧的比特。

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