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21. 发明申请

WO2009126915A1 RATE-DISTORTION DEFINED INTERPOLATION FOR VIDEO CODING BASED ON FIXED FILTER OR ADAPTIVE FILTER 审中-公开
标题翻译：基于固定滤波器或自适应滤波器的视频编码速率定义插值
公开(公告)号：WO2009126915A1
公开(公告)日：2009-10-15
申请号：PCT/US2009/040254
申请日：2009-04-10
申请人： QUALCOMM INCORPORATED(1/3) , YE, Yan , KARCZEWICZ, Marta
发明人： YE, Yan , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/523 , H04N19/117 , H04N19/122 , H04N19/147 , H04N19/182 , H04N19/192 , H04N19/46 , H04N19/635 , H04N19/82
摘要： This disclosure describes filtering techniques applied by an encoder and a decoder during the prediction stage of a video encoding and/or decoding process. The filtering techniques may enhance the accuracy of predictive data used during fractional interpolation, and may improve predictive data of integer blocks of pixels. There are several aspects to this disclosure, including a useful twelve-pixel filter support that may be used for interpolation, techniques that use coefficient symmetry and pixel symmetry to reduce the amount of data needed to be sent between an encoder and a decoder to configure the filter support for interpolation, and techniques for filtering data at integer pixel locations in a manner that is similar to sub-pixel interpolation. Other aspects of this disclosure concern techniques for encoding information in the bitstream to convey the type of filter used, and possibly the filter coefficients used. Predictive coding of filter coefficients is also described.
摘要翻译：本公开描述了在视频编码和/或解码过程的预测阶段期间由编码器和解码器应用的滤波技术。滤波技术可以增强在分数插值期间使用的预测数据的精度，并且可以改善整数像素块的预测数据。本公开的方面有几个方面，包括可用于插值的有用的十二像素滤波器支持，使用系数对称性和像素对称性的技术来减少在编码器和解码器之间发送的数据量以配置用于内插的滤波器支持，以及以类似于子像素插值的方式在整数像素位置处对数据进行滤波的技术。本公开的其它方面涉及用于对位流中的信息进行编码以传送所使用的滤波器的类型以及可能使用的滤波器系数的技术。还描述了滤波器系数的预测编码。

22. 发明申请

WO2009126911A1 PREDICTION TECHNIQUES FOR INTERPOLATION IN VIDEO CODING 审中-公开
标题翻译：插值视频编码的预测技术
公开(公告)号：WO2009126911A1
公开(公告)日：2009-10-15
申请号：PCT/US2009/040250
申请日：2009-04-10
申请人： QUALCOMM INCORPORATED , YE, Yan , KARCZEWICZ, Marta
发明人： YE, Yan , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/00896 , H04N19/117 , H04N19/124 , H04N19/136 , H04N19/147 , H04N19/182 , H04N19/192 , H04N19/198 , H04N19/463 , H04N19/50 , H04N19/523 , H04N19/82
摘要： This disclosure describes filtering techniques applied by an encoder and a decoder during the prediction stage of a video encoding and/or decoding process. The filtering techniques may enhance the accuracy of predictive data used during fractional interpolation, and may improve predictive data of integer blocks of pixels. There are several aspects to this disclosure, including a useful twelve-pixel filter support that may be used for interpolation, techniques that use coefficient symmetry and pixel symmetry to reduce the amount of data needed to be sent between an encoder and a decoder to configure the filter support for interpolation, and techniques for filtering data at integer pixel locations in a manner that is similar to sub-pixel interpolation. Other aspects of this disclosure concern techniques for encoding information in the bitstream to convey the type of filter used, and possibly the filter coefficients used. Predictive coding of filter coefficients is also described.
摘要翻译：本公开描述了在视频编码和/或解码过程的预测阶段期间由编码器和解码器应用的滤波技术。滤波技术可以增强在分数插值期间使用的预测数据的精度，并且可以改善整数像素块的预测数据。本公开的方面有几个方面，包括可用于插值的有用的十二像素滤波器支持，使用系数对称性和像素对称性的技术来减少在编码器和解码器之间发送的数据量以配置用于内插的滤波器支持，以及以类似于子像素插值的方式在整数像素位置处对数据进行滤波的技术。本公开的其他方面涉及用于编码比特流中的信息以传达所使用的滤波器的类型以及可能使用的滤波器系数的技术。还描述了滤波器系数的预测编码。

23. 发明申请

WO2009049260A2 ENTROPY CODING OF INTERLEAVED SUB-BLOCKS OF A VIDEO BLOCK 审中-公开
标题翻译：视频块的独立子块的熵编码
公开(公告)号：WO2009049260A2
公开(公告)日：2009-04-16
申请号：PCT/US2008/079649
申请日：2008-10-10
申请人： QUALCOMM Incorporated , KARCZEWICZ, Marta , YE, Yan
发明人： KARCZEWICZ, Marta , YE, Yan
IPC分类号： H04N7/50
CPC分类号： H04N19/61 , H04N19/13 , H04N19/46 , H04N19/70
摘要： This disclosure describes techniques for entropy coding of video blocks, and proposes a syntax element that may promote coding efficiency. The syntax element may identify a number of non-zero value sub-blocks within a video block, wherein the non-zero value sub-blocks comprise sub-blocks within the video block that include at least one non-zero coefficient. A method of coding a video block may comprise coding the syntax element, generating the non-zero value sub-blocks of the video block, and entropy coding the non-zero value sub-blocks.
摘要翻译：本公开描述了用于视频块的熵编码的技术，并且提出了可以提高编码效率的语法元素。语法元素可以识别视频块内的多个非零值子块，其中非零值子块包括视频块内包括至少一个非零系数的子块。编码视频块的方法可以包括对语法元素进行编码，生成视频块的非零值子块，以及对非零值子块进行熵编码。

24. 发明申请

WO2009049250A2 ADAPTIVE CODING OF VIDEO BLOCK HEADER INFORMATION 审中-公开
标题翻译：视频块头信息的自适应编码
公开(公告)号：WO2009049250A2
公开(公告)日：2009-04-16
申请号：PCT/US2008/079636
申请日：2008-10-10
申请人： QUALCOMM Incorporated , YE, Yan , KARCZEWICZ, Marta , PANCHAL, Rahul
发明人： YE, Yan , KARCZEWICZ, Marta , PANCHAL, Rahul
IPC分类号： H04N7/26
CPC分类号： H04N19/12 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/50 , H04N19/593 , H04N19/70
摘要： This disclosure describes techniques for adaptively coding video block header information based on previously encoded video blocks. A video encoder may adaptively select a coding table for use in encoding a syntax element of a current video block based on corresponding syntax elements of one or more previously encoded blocks. In one aspect, the video encoder may adaptively select the coding table for use in encoding a block type of the current block based on block types of one or more video blocks adjacent to the current video block, i.e., neighboring video blocks. The video encoder may also predict one or more other header syntax elements of the current block based on at least one of the previously encoded video blocks. If prediction is successful, the video encoder may encode a flag to indicate the success of prediction.
摘要翻译：本公开描述了基于先前编码的视频块来自适应地编码视频块头信息的技术。视频编码器可以基于一个或多个先前编码的块的相应语法元素来自适应地选择用于编码当前视频块的语法元素的编码表。在一个方面，视频编码器可以基于与当前视频块相邻的一个或多个视频块（即，相邻的视频块）的块类型自适应地选择用于编码当前块的块类型的编码表。视频编码器还可以基于先前编码的视频块中的至少一个来预测当前块的一个或多个其他标题语法元素。如果预测成功，则视频编码器可以编码标志以指示预测的成功。

25. 发明申请

WO2010039728A2 VIDEO CODING WITH LARGE MACROBLOCKS 审中-公开
标题翻译：视频编码与大型MACROBLOCKS
公开(公告)号：WO2010039728A2
公开(公告)日：2010-04-08
申请号：PCT/US2009/058833
申请日：2009-09-29
申请人： QUALCOMM Incorporated , CHEN, Peisong , YE, Yan , KARCZEWICZ, Marta
发明人： CHEN, Peisong , YE, Yan , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/30 , H04N7/50
CPC分类号： H04N19/70 , H04N19/103 , H04N19/147 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/593 , H04N19/61
摘要： Techniques are described for encoding and decoding digital video data using macroblocks that are larger than the macroblocks prescribed by conventional video encoding and decoding standards. For example, the techniques include encoding and decoding a video stream using macroblocks comprising greater than 16x16 pixels. In one example, an apparatus includes a video encoder configured to encode a coded unit comprising a plurality of video blocks, wherein at least one of the plurality of video blocks comprises a size of more than 16x16 pixels and to generate syntax information for the coded unit that includes a maximum size value, wherein the maximum size value indicates a size of a largest one of the plurality of video blocks in the coded unit. The syntax information may also include a minimum size value. In this manner, the encoder may indicate to a decoder the proper syntax decoder to apply to the coded unit.
摘要翻译：描述了使用比常规视频编码和解码标准规定的宏块大的宏块对数字视频数据进行编码和解码的技术。例如，这些技术包括使用包括大于16×16像素的宏块对视频流进行编码和解码。在一个示例中，一种设备包括：视频编码器，被配置为对包括多个视频块的编码单元进行编码，其中所述多个视频块中的至少一个包括大于16×16像素的大小，并且生成所述经编码单元的语法信息其包括最大尺寸值，其中所述最大尺寸值指示所述经编码单元中的所述多个视频块中最大的一个的尺寸。语法信息还可以包括最小大小值。以这种方式，编码器可以向解码器指示适用于编码单元的适当的语法解码器。

26. 发明申请

WO2009126921A1 ADVANCED INTERPOLATION TECHNIQUES FOR MOTION COMPENSATION IN VIDEO CODING 审中-公开
标题翻译：视频编码中运动补偿的先进插值技术
公开(公告)号：WO2009126921A1
公开(公告)日：2009-10-15
申请号：PCT/US2009/040260
申请日：2009-04-10
申请人： QUALCOMM INCORPORATED , YE, Yan , CHEN, Peisong , KARCZEWICZ, Marta
发明人： YE, Yan , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/00139 , H04N19/117 , H04N19/136 , H04N19/147 , H04N19/182 , H04N19/192 , H04N19/523 , H04N19/82
摘要： This disclosure describes various interpolation techniques performed by an encoder and a decoder during the motion compensation process of video coding. In one example, an encoder interpolates pixel values of reference video data based on a plurality of different pre defined interpolation filters. In this example, the decoder receives a syntax element that identifies an interpolation filter, and interpolates pixel values of reference video data based on the interpolation filter identified by the syntax element. In another example, a method of interpolating predictive video data includes generating half-pixel values based on integer pixel values, rounding the half-pixel values to generate half-pixel interpolated values, storing the half-pixel values as non-rounded versions of the half-pixel values, and generating quarter-pixel values based on the non-rounded versions of the half-pixel values and the integer pixel values.
摘要翻译：本公开描述了在视频编码的运动补偿过程期间由编码器和解码器执行的各种插值技术。在一个示例中，编码器基于多个不同的预定义内插滤波器来内插参考视频数据的像素值。在该示例中，解码器接收标识内插滤波器的语法元素，并且基于由语法元素识别的内插滤波器内插参考视频数据的像素值。在另一示例中，内插预测性视频数据的方法包括基于整数像素值生成半像素值，对半像素值进行舍入以产生半像素内插值，将半像素值存储为非整数版本的基于半像素值和整数像素值的非圆形版本生成四分之一像素值。

27. 发明申请

WO2009105732A1 FAST MACROBLOCK DELTA QP DECISION 审中-公开
标题翻译：快速MACROBLOCK DELTA QP决策
公开(公告)号：WO2009105732A1
公开(公告)日：2009-08-27
申请号：PCT/US2009/034800
申请日：2009-02-21
申请人： QUALCOMM INCORPORATED , YE, Yan , KARCZEWICZ, Marta , PEISONG, Chen
发明人： YE, Yan , KARCZEWICZ, Marta , PEISONG, Chen
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/124 , H04N19/147 , H04N19/176 , H04N19/196 , H04N19/61
摘要： A system and method for encoding multimedia video is described. As video is encoded a quantization parameter is selected for each macroblock. As described herein, the quantization parameter for each macroblock may be selected by limiting the universe of all possible quantization parameters to a particular range of possible quantization parameter values. This increases the speed of video encoding by reducing the number of quantization parameters that are tested for each video macroblock.
摘要翻译：描述了一种用于编码多媒体视频的系统和方法。当视频被编码时，为每个宏块选择量化参数。如本文所述，可以通过将所有可能的量化参数的范围限制到可能的量化参数值的特定范围来选择每个宏块的量化参数。这通过减少为每个视频宏块测试的量化参数的数量来增加视频编码的速度。

28. 发明申请

WO2008157431A3 ADAPTIVE COEFFICIENT SCANNING FOR VIDEO CODING 审中-公开
公开(公告)号：WO2008157431A3
公开(公告)日：2008-12-24
申请号：PCT/US2008/067020
申请日：2008-06-13
申请人： QUALCOMM Incorporated , YE, Yan , KARCZEWICZ, Marta
发明人： YE, Yan , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/30 , H04N7/34 , H04N7/36
摘要： This disclosure describes techniques for scanning coefficients of video blocks. In particular, the techniques of this disclosure adapt a scan order used to scan a two dimensional block of coefficients into a one dimensional coefficient vector based on statistics associated with one or more previously coded blocks. For example, statistics that indicate the likelihood that a given coefficient value in each position of a two dimensional block is zero or non zero may be collected for one or more previously coded blocks. At some point, an adjustment to the scan order can be made in order to better ensure that non-zero coefficients are grouped together near the front of the one dimensional coefficient vector, which can improve the effectiveness of entropy coding. The collection of statistics and adjustment of scan order may be made separately for each possible prediction mode.

29. 发明申请

WO2010039822A3 VIDEO CODING USING TRANSFORMS BIGGER THAN 4x4 AND 8x8 审中-公开
公开(公告)号：WO2010039822A3
公开(公告)日：2010-04-08
申请号：PCT/US2009/059014
申请日：2009-09-30
申请人： QUALCOMM INCORPORATED , YE, Yan , CHEN, Peisong , KARCZEWICZ, Marta
发明人： YE, Yan , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/30 , H04N7/50
摘要： In a video processing system, a method and system for applying transforms larger than 8x8 and non-rectangular transforms, and generating transform size syntax elements indicative of the transforms for video decoding are provided. The transform size syntax element may be generated by an encoder based on a prediction block size of a video block and the contents of the video block. Further, the transform size syntax element may be generated according to a set of rules to select from 4x4, 8x8, and larger transform sizes during an encoding process. A decoder may perform an inverse transform based on the transform size syntax element and the rules used by the encoder. The transform size syntax element may be transmitted to the decoder as part of the encoded video bitstream.

30. 发明申请

WO2010039733A2 VIDEO CODING WITH LARGE MACROBLOCKS 审中-公开
标题翻译：视频编码与大型宏块
公开(公告)号：WO2010039733A2
公开(公告)日：2010-04-08
申请号：PCT/US2009/058844
申请日：2009-09-29
申请人： QUALCOMM INCORPORATED , CHEN, Peisong , YE, Yan , KARCZEWICZ, Marta
发明人： CHEN, Peisong , YE, Yan , KARCZEWICZ, Marta
IPC分类号： H04N7/12
CPC分类号： H04N19/103 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/70
摘要： Techniques are described for encoding and decoding digital video data using macroblocks that are larger than the macroblocks prescribed by conventional video encoding and decoding standards. For example, the techniques include encoding and decoding a video stream using macroblocks comprising greater than 16x16 pixels, for example, 64x64 pixels. In one example, an apparatus includes a video encoder configured to encode a video block having a size of more than 16x16 pixels, generate block-type syntax information that indicates the size of the block, and generate a coded block pattern value for the encoded block, wherein the coded block pattern value indicates whether the encoded block includes at least one non-zero coefficient. The encoder may set the coded block pattern value to zero when the encoded block does not include at least one non-zero coefficient or set the coded block pattern value to one when the encoded block includes a non-zero coefficient.
摘要翻译：描述了使用比常规视频编码和解码标准所规定的宏块大的宏块对数字视频数据进行编码和解码的技术。例如，这些技术包括使用包括大于16×16像素，例如64×64像素的宏块对视频流进行编码和解码。在一个实例中，一种设备包含经配置以对尺寸大于16×16像素的视频块进行编码的视频编码器，产生指示所述块的大小的块类型语法信息，且产生经编码块的经译码块模式值其中所述经译码块模式值指示所述经编码块是否包括至少一个非零系数。当编码块不包括至少一个非零系数时，编码器可以将编码块图案值设置为零，或者当编码块包括非零系数时，将编码块图案值设置为1，将编码块图案值设置为零。

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