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21. 发明申请

US20130010861A1 USE OF FRAME CACHING TO IMPROVE PACKET LOSS RECOVERY 有权
标题翻译：使用框架缓存来提高分组丢失恢复
公开(公告)号：US20130010861A1
公开(公告)日：2013-01-10
申请号：US13614453
申请日：2012-09-13
申请人： Chih-Lung Lin , Minghui Xia , Pohsiang Hsu , Shankar Regunathan , Thomas W. Holcomb
发明人： Chih-Lung Lin , Minghui Xia , Pohsiang Hsu , Shankar Regunathan , Thomas W. Holcomb
IPC分类号： H04N7/32 , H04N7/26
CPC分类号： H04N19/89 , H04N19/103 , H04N19/124 , H04N19/166 , H04N19/172 , H04N19/188 , H04N19/46 , H04N19/573 , H04N19/61 , H04N19/91
摘要： Various new and non-obvious apparatus and methods for using frame caching to improve packet loss recovery are disclosed. One of the disclosed embodiments is a method for using periodical and synchronized frame caching within an encoder and its corresponding decoder. When the decoder discovers packet loss, it informs the encoder which then generates a frame based on one of the shared frames stored at both the encoder and the decoder. When the decoder receives this generated frame it can decode it using its locally cached frame.
摘要翻译：公开了使用帧缓存来改善丢包恢复的各种新的和不明显的装置和方法。所公开的实施例之一是用于在编码器及其对应的解码器内使用周期性和同步帧缓存的方法。当解码器发现分组丢失时，它通知编码器，然后编码器基于存储在编码器和解码器的共享帧之一来生成帧。当解码器接收到该生成的帧时，它可以使用其本地缓存的帧进行解码。

22. 发明授权

US08107531B2 Signaling and repeat padding for skip frames 有权
标题翻译：用于跳帧的信令和重复填充
公开(公告)号：US08107531B2
公开(公告)日：2012-01-31
申请号：US10987521
申请日：2004-11-12
申请人： Shankar Regunathan , Chih-Lung Lin , Thomas W. Holcomb , Jie Liang , Ming-Chieh Lee , Pohsiang Hsu
发明人： Shankar Regunathan , Chih-Lung Lin , Thomas W. Holcomb , Jie Liang , Ming-Chieh Lee , Pohsiang Hsu
IPC分类号： H04N7/12
CPC分类号： H04N19/86 , H04N19/117 , H04N19/124 , H04N19/13 , H04N19/146 , H04N19/152 , H04N19/159 , H04N19/16 , H04N19/172 , H04N19/176 , H04N19/179 , H04N19/184 , H04N19/46 , H04N19/51 , H04N19/523 , H04N19/61 , H04N19/70 , H04N19/82
摘要： A video codec efficiently signals that a frame is identical to its reference frame, such that separate coding of its picture content is skipped. Information that a frame is skipped is represented jointly in a coding table of a frame coding type element for bit rate efficiency in signaling. Further, the video codec signals the picture type (e.g., progressive or interlaced) of skipped frames, which permits different repeat padding methods to be applied according to the picture type.
摘要翻译：视频编解码器有效地发信号通知帧与其参考帧相同，从而跳过其图像内容的单独编码。帧跳过的信息在信令中的比特率效率的帧编码型元件的编码表中联合表示。此外，视频编解码器针对跳过的帧的图像类型（例如，逐行或隔行扫描）进行信号，这允许根据图像类型应用不同的重复填充方法。

23. 发明授权

US07616692B2 Hybrid motion vector prediction for interlaced forward-predicted fields 有权
标题翻译：用于交错前向预测场的混合运动矢量预测
公开(公告)号：US07616692B2
公开(公告)日：2009-11-10
申请号：US10933956
申请日：2004-09-02
申请人： Thomas W. Holcomb , Pohsiang Hsu , Chih-Lung Lin
发明人： Thomas W. Holcomb , Pohsiang Hsu , Chih-Lung Lin
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04B1/66
CPC分类号： H04N19/16 , H04N19/137 , H04N19/196 , H04N19/46 , H04N19/51 , H04N19/61 , H04N19/70
摘要： Techniques and tools for hybrid motion vector prediction for interlaced forward-predicted fields are described. For example, a video decoder determines an initial motion vector predictor for a motion vector of an interlaced forward-predicted field. The decoder then checks a variation condition based at least in part on a predictor polarity selection (e.g., same or opposite), the initial motion vector predictor, and neighbor motion vectors. If the variation condition is satisfied, the decoder uses one of the neighbor motion vectors as a final motion vector predictor. Otherwise, the decoder uses the initial motion vector predictor as the final motion vector predictor. A video encoder performs corresponding processing.
摘要翻译：描述了用于隔行正向预测场的混合运动矢量预测的技术和工具。例如，视频解码器确定用于隔行扫描前向预测场的运动矢量的初始运动矢量预测器。解码器至少部分地基于预测器极性选择（例如相同或相反），初始运动矢量预测器和相邻运动矢量来检查变化条件。如果满足变化条件，则解码器使用相邻运动矢量之一作为最终运动矢量预测器。否则，解码器使用初始运动矢量预测器作为最终运动矢量预测器。视频编码器执行相应的处理。

24. 发明授权

US07602851B2 Intelligent differential quantization of video coding 有权
标题翻译：智能差分量化的视频编码
公开(公告)号：US07602851B2
公开(公告)日：2009-10-13
申请号：US10623195
申请日：2003-07-18
申请人： Ming-Chieh Lee , Bruce Chih-Lung Lin , Pohsiang Hsu , Thomas W. Holcomb
发明人： Ming-Chieh Lee , Bruce Chih-Lung Lin , Pohsiang Hsu , Thomas W. Holcomb
IPC分类号： H04N7/12
CPC分类号： H04N19/17 , H04N19/124 , H04N19/137 , H04N19/176
摘要： With intelligent differential quantization, a video codec intelligently quantizes video at differing strength levels within a frame, such as on a macroblock (MB) or a group of MB basis. This allows the codec to control bit usage on a finer granularity than a frame to meet hardware constraints, as well as providing perceptual optimization by coarsely quantizing unimportant regions, while finely quantizing important regions within a frame. The intelligent differential quantization uses motion information gathered from encoding and analysis of the video to classify the importance of different regions of the image, and quantizes the regions accordingly. In addition, the intelligent differential quantization include efficient signaling of information as to the differential quantization strengths in the compressed bit stream.
摘要翻译：通过智能差分量化，视频编解码器在帧内以不同的强度水平智能量化视频，例如在宏块（MB）或一组基于MB的基础上。这允许编解码器以比帧更精细的粒度来控制比特使用以满足硬件约束，以及通过粗略量化不重要区域来提供感知优化，同时精细量化帧内的重要区域。智能差分量化使用从视频的编码和分析中收集的运动信息来分类图像的不同区域的重要性，并且相应地量化该区域。此外，智能差分量化包括关于压缩比特流中的差分量化强度的信息的有效信令。

25. 发明授权

US09313501B2 Use of frame caching to improve packet loss recovery 有权
公开(公告)号：US09313501B2
公开(公告)日：2016-04-12
申请号：US13614453
申请日：2012-09-13
申请人： Chih-Lung Lin , Minghui Xia , Pohsiang Hsu , Shankar Regunathan , Thomas W. Holcomb
发明人： Chih-Lung Lin , Minghui Xia , Pohsiang Hsu , Shankar Regunathan , Thomas W. Holcomb
IPC分类号： H04N19/164 , H04N19/89 , H04N19/172 , H04N19/46 , H04N19/61 , H04N19/103 , H04N19/166 , H04N19/573 , H04N19/169
CPC分类号： H04N19/89 , H04N19/103 , H04N19/124 , H04N19/166 , H04N19/172 , H04N19/188 , H04N19/46 , H04N19/573 , H04N19/61 , H04N19/91
摘要： Various new and non-obvious apparatus and methods for using frame caching to improve packet loss recovery are disclosed. One of the disclosed embodiments is a method for using periodical and synchronized frame caching within an encoder and its corresponding decoder. When the decoder discovers packet loss, it informs the encoder which then generates a frame based on one of the shared frames stored at both the encoder and the decoder. When the decoder receives this generated frame it can decode it using its locally cached frame.

26. 发明授权

US08634413B2 Use of frame caching to improve packet loss recovery 有权
标题翻译：使用帧缓存来改善丢包恢复
公开(公告)号：US08634413B2
公开(公告)日：2014-01-21
申请号：US11027294
申请日：2004-12-30
申请人： Chih-Lung Lin , Minghui Xia , Pohsiang Hsu , Shankar Regunathan , Thomas W. Holcomb
发明人： Chih-Lung Lin , Minghui Xia , Pohsiang Hsu , Shankar Regunathan , Thomas W. Holcomb
IPC分类号： H04L12/26
CPC分类号： H04N19/89 , H04N19/103 , H04N19/124 , H04N19/166 , H04N19/172 , H04N19/188 , H04N19/46 , H04N19/573 , H04N19/61 , H04N19/91
摘要： Various new and non-obvious apparatus and methods for using frame caching to improve packet loss recovery are disclosed. One of the disclosed embodiments is a method for using periodical and synchronized frame caching within an encoder and its corresponding decoder. When the decoder discovers packet loss, it informs the encoder which then generates a frame based on one of the shared frames stored at both the encoder and the decoder. When the decoder receives this generated frame it can decode it using its locally cached frame.
摘要翻译：公开了使用帧缓存来改善丢包恢复的各种新的和不明显的装置和方法。所公开的实施例之一是用于在编码器及其对应的解码器内使用周期性和同步帧缓存的方法。当解码器发现分组丢失时，它通知编码器，然后编码器基于存储在编码器和解码器的共享帧之一来生成帧。当解码器接收到该生成的帧时，它可以使用其本地缓存的帧进行解码。

27. 发明授权

US08116380B2 Signaling for field ordering and field/frame display repetition 有权
标题翻译：信令用于场排序和场/帧显示重复
公开(公告)号：US08116380B2
公开(公告)日：2012-02-14
申请号：US10934117
申请日：2004-09-04
申请人： Shankar Regunathan , Chih-Lung Lin , Thomas W. Holcomb , Kunal Mukerjee , Pohsiang Hsu
发明人： Shankar Regunathan , Chih-Lung Lin , Thomas W. Holcomb , Kunal Mukerjee , Pohsiang Hsu
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/93 , H04N19/102 , H04N19/109 , H04N19/11 , H04N19/112 , H04N19/117 , H04N19/129 , H04N19/13 , H04N19/137 , H04N19/146 , H04N19/147 , H04N19/159 , H04N19/16 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/184 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/51 , H04N19/52 , H04N19/523 , H04N19/593 , H04N19/61 , H04N19/63 , H04N19/70 , H04N19/82 , H04N19/86
摘要： A decoder processes a first bitstream element (e.g., a pull-down flag) in a first syntax layer (e.g., sequence layer or entry point layer) above frame layer in a bitstream for a video sequence, the bitstream comprising encoded source video having a source type (e.g., progressive or interlace). The decoder processes frame data in a second syntax layer (e.g., frame layer) of the bitstream for a frame (such as an interlaced frame or progressive frame, depending on source type, or a skipped frame) in the video sequence. The first bitstream element indicates whether a repeat-picture element (e.g., a repeat-frame element or a repeat field-element) is present or absent in the frame data in the second syntax layer.
摘要翻译：解码器在用于视频序列的比特流中处理帧层上方的第一语法层（例如，序列层或入口点层）中的第一比特流元素（例如，下拉标志），该比特流包括经编码的源视频，其具有源类型（例如渐进或交错）。解码器在视频序列中的帧（例如隔行帧或逐行帧，取决于源类型或跳过的帧）的第二语法层（例如，帧层）中处理帧数据。第一比特流元素指示第二语法层中的帧数据中是否存在重复图像元素（例如，重复帧元素或重复场元素）。

28. 发明授权

US07924920B2 Motion vector coding and decoding in interlaced frame coded pictures 有权
标题翻译：在交错帧编码图像中的运动矢量编码和解码
公开(公告)号：US07924920B2
公开(公告)日：2011-04-12
申请号：US10933882
申请日：2004-09-02
申请人： Pohsiang Hsu , Thomas W. Holcomb , Chih-Lung Lin
发明人： Pohsiang Hsu , Thomas W. Holcomb , Chih-Lung Lin
IPC分类号： H04N7/30 , H04N7/34 , H04N7/36 , H04N7/50 , H04N7/38
CPC分类号： H04N19/93 , H04N19/102 , H04N19/109 , H04N19/11 , H04N19/112 , H04N19/117 , H04N19/129 , H04N19/13 , H04N19/137 , H04N19/146 , H04N19/147 , H04N19/159 , H04N19/16 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/184 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/51 , H04N19/52 , H04N19/523 , H04N19/593 , H04N19/61 , H04N19/63 , H04N19/70 , H04N19/82 , H04N19/86
摘要： In one aspect, an encoder/decoder receives information for four field motion vectors for a macroblock in an interlaced frame-coded, forward-predicted picture and processes the macroblock using the four field motion vectors. In another aspect, an encoder/decoder determines a number of valid candidate motion vectors and calculates a field motion vector predictor. The encoder/decoder does not perform a median operation on the valid candidates if there are less than three of them. In another aspect, an encoder/decoder determines valid candidates, determines field polarities for the valid candidates, and calculates a motion vector predictor based on the field polarities. In another aspect, an encoder/decoder determines one or more valid candidates, determines a field polarity for each individual valid candidate, allocates each individual valid candidate to one of two sets (e.g., opposite polarity and same polarity sets) depending on its field polarity, and calculates a motion vector predictor based on the two sets.
摘要翻译：一方面，编码器/解码器接收用于隔行扫描帧编码的前向预测图像中的宏块的四个场运动矢量的信息，并使用四个场运动矢量处理该宏块。在另一方面，编码器/解码器确定多个有效的候选运动矢量并计算场运动矢量预测器。如果编码器/解码器中有少于三个，编码器/解码器不对有效候选进行中位数操作。在另一方面，编码器/解码器确定有效候选，确定有效候选的场极性，并且基于场极性计算运动矢量预测器。在另一方面，编码器/解码器确定一个或多个有效候选，确定每个单独有效候选的场极性，根据其场极性将每个单独的有效候选分配给两组中的一个（例如，相反的极性和相同极性集），并且基于两组来计算运动矢量预测器。

29. 发明授权

US07120197B2 Motion compensation loop with filtering 有权
公开(公告)号：US07120197B2
公开(公告)日：2006-10-10
申请号：US10322383
申请日：2002-12-17
申请人： Chih-Lung Lin , Pohsiang Hsu , Thomas W. Holcomb , Ming-Chieh Lee
发明人： Chih-Lung Lin , Pohsiang Hsu , Thomas W. Holcomb , Ming-Chieh Lee
IPC分类号： H04N7/12
CPC分类号： H04N19/523 , G06T3/40 , G06T7/0012 , H04N19/105 , H04N19/115 , H04N19/117 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/129 , H04N19/132 , H04N19/136 , H04N19/137 , H04N19/146 , H04N19/147 , H04N19/15 , H04N19/154 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/46 , H04N19/50 , H04N19/513 , H04N19/52 , H04N19/527 , H04N19/533 , H04N19/547 , H04N19/57 , H04N19/59 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/63 , H04N19/70 , H04N19/80 , H04N19/82 , H04N19/86 , H04N19/895
摘要： Techniques and tools for processing reference frames in a motion estimation/compensation loop or motion compensation loop are described. For example, a video encoder or decoder filters reference frames to reduce discontinuities at block boundaries, improving the efficiency of motion estimation and compensation.

30. 发明授权

US07782954B2 Scan patterns for progressive video content 有权
标题翻译：逐行视频内容的扫描模式
公开(公告)号：US07782954B2
公开(公告)日：2010-08-24
申请号：US10989594
申请日：2004-11-15
申请人： Jie Liang , Chih-Lung Lin , Sridhar Srinivasan , Thomas W. Holcomb
发明人： Jie Liang , Chih-Lung Lin , Sridhar Srinivasan , Thomas W. Holcomb
IPC分类号： H04N7/30 , H04N7/50
CPC分类号： H04N19/93 , H04N19/129 , H04N19/13 , H04N19/159 , H04N19/16 , H04N19/176 , H04N19/196 , H04N19/463 , H04N19/61 , H04N19/70
摘要： Tools and techniques for applying scan patterns during encoding and decoding of progressive video are described. For example, a video decoder entropy decodes transform coefficients in a one-dimensional array and scans the transform coefficients into a block according to a scan pattern. The block is 8×4, and the scan pattern biases the vertical direction for at least the lowest frequency AC coefficients in the horizontal and vertical directions. Or, the block is 4×8, and the scan pattern biases the horizontal direction for at least the lowest frequency AC coefficients in the horizontal and vertical directions. A corresponding video encoder applies the scan patterns to scan transform coefficients from blocks to one-dimensional arrays.
摘要翻译：描述了在逐行视频的编码和解码期间应用扫描模式的工具和技术。例如，视频解码器熵解码一维阵列中的变换系数，并根据扫描模式将变换系数扫描成块。该块为8×4，并且扫描图案对于水平和垂直方向上的至少最低频率AC系数偏置垂直方向。或者，该块为4×8，并且扫描图案在水平和垂直方向上至少对最低频率AC系数偏置水平方向。相应的视频编码器应用扫描图案来扫描从块到一维阵列的变换系数。

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