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1. 发明申请

WO2013006473A1 REDUCED RESOLUTION PIXEL INTERPOLATION 审中-公开
标题翻译：减少分辨率像素插值
公开(公告)号：WO2013006473A1
公开(公告)日：2013-01-10
申请号：PCT/US2012/045044
申请日：2012-06-29
申请人： QUALCOMM INCORPORATED , COBAN, Muhammed Zeyd , CHEN, Peisong , KARCZEWICZ, Marta
发明人： COBAN, Muhammed Zeyd , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/46
CPC分类号： H04N19/59 , H04N19/117 , H04N19/156 , H04N19/184 , H04N19/43
摘要： An offset can be applied to intermediate values obtained while performing an interpolation filtering operation such that applying the offset reduces the bitdepth of the intermediate value. The intermediate value can be stored with the reduced bitdepth, and when retrieved, the offset can be added back such that future calculation can be performed using the intermediate value with the original bitdepth.
摘要翻译：可以对执行内插滤波操作时获得的中间值应用偏移，使得应用偏移减少中间值的位差。中间值可以用减少的位差存储，并且当检索时，可以将偏移量加回，以便可以使用具有原始bitdepth的中间值来执行将来的计算。

2. 发明申请

WO2012096730A1 IDENTIFICATION OF SAMPLES IN A TRANSITION ZONE 审中-公开
标题翻译：标示过渡区样本
公开(公告)号：WO2012096730A1
公开(公告)日：2012-07-19
申请号：PCT/US2011/063795
申请日：2011-12-07
申请人： QUALCOMM Incorporated , GUO, Liwei , KARCZEWICZ, Marta , CHEN, Peisong
发明人： GUO, Liwei , KARCZEWICZ, Marta , CHEN, Peisong
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/127 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/80
摘要： During a video encoding or decoding process, a predicted prediction block is generated for a CU. The CU may have two or more prediction units (PUs). A computing device selects a neighbor region size. After the computing device selects the neighbor region size, samples in a transition zone of the prediction block are identified. Samples associated with a first PU are in the transition zone if neighbor regions that contain the samples also contain samples associated with a second PU. Samples associated with the second PU may be in the transition zone if neighbor regions that contain the samples also contain samples associated with the first PU. The neighbor regions have the selected neighbor region size. A smoothing operation is then performed on the samples in the transition zone.
摘要翻译：在视频编码或解码过程中，为CU生成预测预测块。 CU可以具有两个或更多个预测单元（PU）。计算设备选择相邻区域大小。在计算设备选择相邻区域大小之后，识别预测块的过渡区域中的采样。与第一PU相关联的样本处于过渡区域，如果包含样本的相邻区域也包含与第二PU相关联的样本。与第二PU相关联的样本可以在过渡区域中，如果包含样本的相邻区域也包含与第一PU相关联的样本。相邻区域具有所选择的相邻区域大小。然后对过渡区域中的样本进行平滑处理。

3. 发明申请

WO2012096729A1 ADAPTIVELY PERFORMING SMOOTHING OPERATIONS 审中-公开
标题翻译：轻松执行平滑操作
公开(公告)号：WO2012096729A1
公开(公告)日：2012-07-19
申请号：PCT/US2011/063793
申请日：2011-12-07
申请人： QUALCOMM INCORPORATED , GUO, Liwei , CHEN, Peisong , KARCZEWICZ, Marta
发明人： GUO, Liwei , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/127 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/80
摘要： During a video coding process, a prediction block is generated for a CU. The CU has two or more prediction units. A computing device determines, based on sizes of one or more of the prediction units, whether to perform a smoothing operation on samples in a transition zone of the prediction block. The transition zone is located at a boundary between samples of the prediction block associated with different prediction units. If the computing device makes the determination to perform the smoothing operation, the smoothing operation is performed to smooth samples of the prediction block in the transition zone.
摘要翻译：在视频编码处理期间，为CU生成预测块。 CU具有两个或更多个预测单元。计算装置基于一个或多个预测单元的大小来确定是否对预测块的过渡区域中的样本执行平滑处理。过渡区域位于与不同预测单元相关联的预测块的采样之间的边界。如果计算装置做出进行平滑处理的判定，则进行平滑化处理，以平滑过渡区域中的预测块的采样。

4. 发明申请

WO2012018953A1 SIGNALING ATTRIBUTES FOR NETWORK-STREAMED VIDEO DATA 审中-公开
标题翻译：用于网络流媒体视频数据的信号属性
公开(公告)号：WO2012018953A1
公开(公告)日：2012-02-09
申请号：PCT/US2011/046481
申请日：2011-08-03
申请人： QUALCOMM INCORPORATED , CHEN, Ying , CHEN, Peisong , KARCZEWICZ, Marta
发明人： CHEN, Ying , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N21/816 , H04N19/597 , H04N19/70 , H04N21/21805 , H04N21/235 , H04N21/2365 , H04N21/435 , H04N21/6125 , H04N21/6581 , H04N21/84
摘要： In one example, an apparatus includes a processor configured to receive video data for two or more views of a scene, determine horizontal locations of camera perspectives for each of the two or more views, assign view identifiers to the two or more views such that the view identifiers correspond to the relative horizontal locations of the camera perspectives, form a representation comprising a subset of the two or more views, and, in response to a request from a client device, send information indicative of a maximum view identifier and a minimum view identifier for the representation to the client device.
摘要翻译：在一个示例中，设备包括处理器，其被配置为接收用于场景的两个或多个视图的视频数据，确定用于两个或更多个视图中的每一个的相机视角的水平位置，将视图标识符分配给两个或更多个视图，使得视图标识符对应于相机透视图的相对水平位置，形成包括两个或多个视图的子集的表示，并且响应于来自客户端设备的请求，发送指示最大视图标识符和最小视图的信息客户端设备的表示标识符。

5. 发明申请

WO2011103206A1 ADAPTIVE MOTION RESOLUTION FOR VIDEO CODING 审中-公开
标题翻译：用于视频编码的自适应运动分辨率
公开(公告)号：WO2011103206A1
公开(公告)日：2011-08-25
申请号：PCT/US2011/025113
申请日：2011-02-16
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , KARCZEWICZ, Marta , CHEN, Peisong
发明人： CHIEN, Wei-Jung , KARCZEWICZ, Marta , CHEN, Peisong
IPC分类号： H04N7/26 , H04N7/36 , H04N7/50
CPC分类号： H04N19/58 , H04N19/102 , H04N19/147 , H04N19/172 , H04N19/176 , H04N19/46 , H04N19/52 , H04N19/523 , H04N19/61
摘要： A video encoder may encode video data by adaptively selecting between one-eighth-pixel and one-quarter-pixel precision motion vectors, and signal the selected precision. In one example, an apparatus includes a video encoder to encode a block of video data using a one-eighth-pixel precision motion vector when use of the one-eighth-pixel precision motion vector is determined to be preferable for the block over a one-quarter-pixel precision motion vector, and to generate a signal value indicative of the use of the one-eighth-pixel precision motion vector for the block, and an output interface to output the encoded block and the signal value. A video decoder may be configured to receive the signal value and the encoded block, analyze the signal value to determine whether the block was encoded using one-eighth-pixel precision or one-quarter-pixel precision, and decode the block based on the determination.
摘要翻译：视频编码器可以通过在八分之一像素和四分之一像素精度的运动矢量之间进行自适应选择来对视频数据进行编码，并且将所选精度发信号。在一个示例中，一种装置包括：视频编码器，当使用八分之一像素的精确运动矢量被确定为优于一块时，使用八分之一像素的精确运动矢量对视频数据块进行编码并且生成指示使用该块的八分之一像素精度运动矢量的信号值，以及输出接口以输出编码块和信号值。视频解码器可以被配置为接收信号值和编码块，分析信号值以确定块是使用八分之一像素精度还是四分之一像素精度进行编码，并且基于该确定对块进行解码。

6. 发明申请

WO2011006004A1 NON-ZERO ROUNDING AND PREDICTION MODE SELECTION TECHNIQUES IN VIDEO ENCODING 审中-公开
标题翻译：视频编码中的非零圆和预测模式选择技术
公开(公告)号：WO2011006004A1
公开(公告)日：2011-01-13
申请号：PCT/US2010/041423
申请日：2010-07-08
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , CHEN, Peisong , YE, Yan
发明人： KARCZEWICZ, Marta , CHEN, Peisong , YE, Yan
IPC分类号： H04N7/36 , H04N7/46 , H04N7/26 , H04N7/50
CPC分类号： H04N19/577 , H04N19/105 , H04N19/124 , H04N19/147 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/573 , H04N19/61 , H04N19/91
摘要： In one aspect of this disclosure, rounding adjustments to bi-directional predictive data may be purposely eliminated to provide predictive data that lacks any rounding bias. In this case, rounded and unrounded predictive data may both be considered in a rate-distortion analysis to identify the best data for prediction of a given video block. In another aspect of this disclosure, techniques are described for selecting among default weighted prediction, implicit weighted prediction, and explicit weighted prediction. In this context, techniques are also described for adding offset to prediction data, e.g., using the format of explicit weighted prediction to allow for offsets to predictive data that is otherwise determined by implicit or default weighted prediction.
摘要翻译：在本公开的一个方面，可以有意地消除双向预测数据的舍入调整以提供缺少任何舍入偏差的预测数据。在这种情况下，可以在速率失真分析中考虑四舍五入和未包围的预测数据，以识别用于预测给定视频块的最佳数据。在本公开的另一方面，描述了用于在默认加权预测，隐式加权预测和显式加权预测之间进行选择的技术。在这种情况下，还描述了用于将偏移量添加到预测数据的技术，例如使用显式加权预测的格式来允许否则由隐含或默认加权预测确定的预测数据的偏移。

7. 发明申请

WO2009126919A1 RATE-DISTORTION QUANTIZATION FOR CONTEXT-ADAPTIVE VARIABLE LENGTH CODING (CAVLC) 审中-公开
标题翻译：适应变化长度编码（CAVLC）的速率失真量化
公开(公告)号：WO2009126919A1
公开(公告)日：2009-10-15
申请号：PCT/US2009/040258
申请日：2009-04-10
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , CHEN, Peisong , YE, Yan
发明人： KARCZEWICZ, Marta , CHEN, Peisong , YE, Yan
IPC分类号： H04N7/26
CPC分类号： H04N19/124 , H04N19/126
摘要： In general, this disclosure provides techniques for quantization of the coefficients of video blocks in a manner that can achieve a desirable balance of rate and distortion. The described techniques may analyze a plurality of quantization levels associated with each individual coefficient to select the quantization level for the individual coefficients that results in a lowest coding cost. Since CAVLC does not encode each coefficient independently, the techniques may compute the coding costs for each of the candidate quantization levels associated with the individual coefficients based on quantization levels selected for previously quantized coefficients and estimated (or predicted) quantization levels for subsequent coefficients of a coefficient vector. The quantization levels for each of the coefficients are selected based on computed coding costs to obtain a set of quantized coefficients that minimize a rate-distortion model.
摘要翻译：通常，本公开提供了以可以实现速率和失真的期望平衡的方式来量化视频块的系数的技术。所描述的技术可以分析与每个单独系数相关联的多个量化级别，以选择导致最低编码成本的各个系数的量化级别。由于CAVLC不独立地对每个系数进行编码，所以这些技术可以基于针对先前量化的系数选择的量化级别和针对先前量化的系数的估计（或预测）量化级别计算与各个系数相关联的每个候选量化级别的编码成本，系数向量。基于计算的编码成本来选择每个系数的量化级别，以获得最小化速率 - 失真模型的一组量化系数。

8. 发明申请

WO2009008897A3 EARLY RENDERING FOR FAST CHANNEL SWITCHING 审中-公开
公开(公告)号：WO2009008897A3
公开(公告)日：2009-01-15
申请号：PCT/US2007/078922
申请日：2007-09-19
申请人： QUALCOMM INCORPORATED , GAO, Qiang , CHEN, Peisong
发明人： GAO, Qiang , CHEN, Peisong
IPC分类号： H04N7/24 , H04N7/68 , H04N5/44
摘要： The disclosure relates to techniques for switching between channels of digital multimedia content. In particular, a decoding device decodes and renders to a display at least one frame of a segment of data prior to receiving the entire segment. In certain aspects, the decoding device may render one of the frames of the segment and freeze the rendered frame until the decoding device receives all of the frames of the segment. In other aspects, the decoding device may render frames of one or more segments at a reduced rendering rate until the receiving and rendering operations of decoding device are synchronized such that the rendering of the current segment occurs at substantially the same time as the receiving of the next segment. By rendering at least frame prior to receiving the entire segment the decoding device more quickly displays content to a user during a channel switching event.

9. 发明申请

WO2007038727A3 VIDEO ENCODING METHOD ENABLING HIGHLY EFFICIENT PARTIAL DECODING OF H.264 AND OTHER TRANSFORM CODED INFORMATION 审中-公开
公开(公告)号：WO2007038727A3
公开(公告)日：2007-04-05
申请号：PCT/US2006/037996
申请日：2006-09-27
申请人： QUALCOMM Incorporated , CHEN, Peisong , OGUZ, Seyfullah Halit
发明人： CHEN, Peisong , OGUZ, Seyfullah Halit
IPC分类号： H04N7/26 , H04N7/34 , H04N7/50 , H04N7/68 , G06F17/14
摘要： Methods and apparatus to process multimedia data enabling efficient partial decoding of transform coded data are described. A decoder device receives transform coefficients, where the transform coefficients are associated with multimedia data. The decoder device determines a set of multimedia samples to be reconstructed. In one aspect, the set of samples to be reconstructed is a subset of a matrix of transformed multimedia samples. The decoder device determines a set of transform coefficients to be used to reconstruct the multimedia samples. In one aspect, the transform coefficients are used to scale partial basis images associated with the encoding method used to generate the transform coefficients, resulting in reconstructed multimedia samples.

10. 发明申请

WO2007038702A1 CONTENT DRIVEN TRANSCODER THAT ORCHESTRATES MULTIMEDIA TRANSCODING USING CONTENT INFORMATION 审中-公开
标题翻译：使用内容信息进行多媒体转换的内容驱动器
公开(公告)号：WO2007038702A1
公开(公告)日：2007-04-05
申请号：PCT/US2006/037949
申请日：2006-09-27
申请人： QUALCOMM INCORPORATED , RAVEENDRAN, Vijayalakshmi, R. , WALKER, Gordon, Kent , TIAN, Tao , BHAMIDIPATI, Phanikumar , SHI, Fang , CHEN, Peisong , SUBRAMANIA, Sitaraman, Ganapathy , OGUZ, Seyfullah, Halit
发明人： RAVEENDRAN, Vijayalakshmi, R. , WALKER, Gordon, Kent , TIAN, Tao , BHAMIDIPATI, Phanikumar , SHI, Fang , CHEN, Peisong , SUBRAMANIA, Sitaraman, Ganapathy , OGUZ, Seyfullah, Halit
IPC分类号： H04N7/26
CPC分类号： H04N19/40 , H04N5/144 , H04N5/147 , H04N5/21 , H04N7/0115 , H04N7/012 , H04N19/107 , H04N19/114 , H04N19/115 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/147 , H04N19/149 , H04N19/154 , H04N19/159 , H04N19/172 , H04N19/18 , H04N19/187 , H04N19/194 , H04N19/30 , H04N19/36 , H04N19/577 , H04N19/61 , H04N19/65 , H04N19/86 , H04N19/87 , H04N19/89 , H04N21/234309 , H04N21/2353 , H04N21/2389
摘要： Apparatus and methods of using content information for encoding multimedia data are described. A method of processing multimedia data includes receiving multimedia data, and encoding the multimedia data into a first data group and a second data group based on content of the multimedia data, the first data group being configured to be independently decodable from the second data group, and wherein the first and second data groups are encoded at different quality levels. The method can also include classifying the content of the multimedia data and encoding the multimedia data based on the content classification.
摘要翻译：描述了使用内容信息来编码多媒体数据的装置和方法。一种处理多媒体数据的方法，包括接收多媒体数据，并根据多媒体数据的内容将多媒体数据编码成第一数据组和第二数据组，第一数据组被配置为可从第二数据组独立解码，并且其中所述第一和第二数据组以不同的质量级别进行编码。该方法还可以包括基于内容分类对多媒体数据的内容进行分类和对多媒体数据进行编码。

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