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1. 发明申请

WO2009059053A1 DETECTING SCENE TRANSITIONS IN DIGITAL VIDEO SEQUENCES 审中-公开
标题翻译：检测数字视频序列中的场景转换
公开(公告)号：WO2009059053A1
公开(公告)日：2009-05-07
申请号：PCT/US2008/081865
申请日：2008-10-30
申请人： QUALCOMM Incorporated , OGUZ, Seyfullah Halit , ROHATGI, Amit , LIU, Fang , BHAMIDIPATI, Phanikumar
发明人： OGUZ, Seyfullah Halit , ROHATGI, Amit , LIU, Fang , BHAMIDIPATI, Phanikumar
IPC分类号： H04N5/14 , H04N7/26
CPC分类号： H04N5/147
摘要： This disclosure describes techniques for detecting scene transitions in a digital video sequence. An encoding device may, for example, analyze a distribution of pixel values over a plurality of frames to detect locations at which the scene transitions occur. In particular, the encoding device analyzes the distribution of pixel locations having values in a mid range of possible pixel values to identify locations in the plurality of frames that experience a significant short term increase in the number of pixel locations having mid range pixel values. A significant short term increase in the number of pixel locations with pixel values in the mid range of possible pixel values is indicative of a soft transition. In this manner, occurrences of gradual scene transitions are detected by identifying locations within the plurality of frames that have significant short term increases in the number of pixel locations having mid range pixel values.
摘要翻译：本公开描述了用于检测数字视频序列中的场景转换的技术。编码装置可以例如分析多个帧上的像素值的分布，以检测发生场景转换的位置。特别地，编码装置分析具有在可能像素值的中间范围内的值的像素位置的分布，以识别在具有中间像素值的像素位置的数量的经历显着短期增加的多个帧中的位置。具有可能像素值的中间范围内的像素值的像素位置的数量的显着短期增加表示软转换。以这种方式，通过识别具有中等范围像素值的像素位置的数目中具有显着短期增加的多个帧内的位置来检测逐渐场景转换的发生。

2. 发明申请

WO2008136831A1 DIGITAL MULTIMEDIA CHANNEL SWITCHING 审中-公开
标题翻译：数字多媒体信道切换
公开(公告)号：WO2008136831A1
公开(公告)日：2008-11-13
申请号：PCT/US2007/068371
申请日：2007-05-07
申请人： QUALCOMM Incorporated , OGUZ, Seyfullah Halit , ROHATGI, Amit
发明人： OGUZ, Seyfullah Halit , ROHATGI, Amit
IPC分类号： H04N7/24 , H04N7/26 , H04N7/46 , H04N7/50 , H04N7/68
CPC分类号： H04N21/44016 , H04N19/11 , H04N19/132 , H04N19/152 , H04N19/176 , H04N19/61 , H04N19/895 , H04N21/23424 , H04N21/4383
摘要： The disclosure relates to techniques for coding a channel switch frame used for switching between channels of digital multimedia content. In particular, an encoding device may code channel switch frame to exclude one or more blocks of pixels that may be reconstructed at a desired fidelity at a decoding device using one or more spatial error concealment algorithms. Excluding the one or more blocks of pixels of the channel switch frame that can be reconstructed at a desirable fidelity reduces the amount of bandwidth necessary to code the portion of the channel switch frame, thus allowing more efficient utilization of available bandwidth.
摘要翻译：本公开涉及用于编码用于在数字多媒体内容的频道之间切换的信道切换帧的技术。特别地，编码装置可以编码信道切换帧以排除可以使用一个或多个空间错误隐藏算法在解码装置处以期望的保真度重建的一个或多个像素块。排除可以以期望的保真度重建的信道切换帧的一个或多个像素块减少了编码信道切换帧部分所需的带宽量，从而允许更有效地利用可用带宽。

3. 发明申请

WO2007038695A2 CHANNEL SWITCH FRAME 审中-公开
标题翻译：通道开关框架
公开(公告)号：WO2007038695A2
公开(公告)日：2007-04-05
申请号：PCT/US2006/037942
申请日：2006-09-27
申请人： QUALCOMM INCORPORATED , WALKER, Gordon Kent , RAVEENDRAN, Vijayalakshmi R. , CHEN, Peisong , TIAN, Tao , SHI, Fang , SWAZEY, Scott T. , OGUZ, Seyfullah Halit , ROHATGI, Amit , GANAPATHY SUBRAMANIA, Sitaraman , BHAMIDIPATI, Phanikumar
发明人： WALKER, Gordon Kent , RAVEENDRAN, Vijayalakshmi R. , CHEN, Peisong , TIAN, Tao , SHI, Fang , SWAZEY, Scott T. , OGUZ, Seyfullah Halit , ROHATGI, Amit , GANAPATHY SUBRAMANIA, Sitaraman , BHAMIDIPATI, Phanikumar
IPC分类号： H04N7/26 , H04N7/66
CPC分类号： H04N21/23424 , H04N19/105 , H04N19/159 , H04N19/166 , H04N19/172 , H04N19/37 , H04N19/46 , H04N21/23439 , H04N21/2383 , H04N21/2662 , H04N21/4384 , H04N21/44016 , H04N21/631
摘要： Methods and apparatus to process multimedia data enabling faster channel acquisitions, improved error recovery and improved efficiency. An encoder device encodes a first portion of multimedia data using inter-coding to generate a first version, and encodes the first portion of multimedia data using intra-coding to generate a second version. A decoder device receives a first version of a first portion of multimedia data, wherein the first version is inter-coded, receives a second version of the first portion of multimedia data, wherein the second version is intra-coded, and selectively decodes the first and second received versions.
摘要翻译：用于处理多媒体数据的方法和设备能够实现更快的信道采集，改善的错误恢复和提高的效率。编码器设备使用帧间编码对多媒体数据的第一部分进行编码以生成第一版本，并且使用帧内编码对多媒体数据的第一部分进行编码以生成第二版本。解码器设备接收多媒体数据的第一部分的第一版本，其中第一版本是帧间编码的，接收多媒体数据的第一部分的第二版本，其中第二版本是帧内编码的，并且选择性地解码第一版本和第二个收到的版本。

4. 发明申请

WO2009079595A1 ADAPTIVE GROUP OF PICTURES (AGOP) STRUCTURE DETERMINATION 审中-公开
标题翻译：自适应组图（AGOP）结构测定
公开(公告)号：WO2009079595A1
公开(公告)日：2009-06-25
申请号：PCT/US2008/087256
申请日：2008-12-17
申请人： QUALCOMM Incorporated , SWAZEY, Scott, T. , OGUZ, Seyfullah Halit , ROHATGI, Amit
发明人： SWAZEY, Scott, T. , OGUZ, Seyfullah Halit , ROHATGI, Amit
IPC分类号： H04N7/26
CPC分类号： H04N19/40 , H04N19/114 , H04N19/142 , H04N19/177 , H04N19/61 , H04N19/87
摘要： This disclosure is directed to techniques for determining a picture type for each of a plurality of frames included in a video sequence based on cross-correlations between the frames. The cross-correlations include first order cross-correlations between image information within pairs of frames included in the video sequence and second order cross-correlations between pairs of the first order cross-correlations. The first order cross-correlations may be analyzed to detect video transitional effects between the frames. The first and second order cross-correlations may be comparatively analyzed to determine temporal similarities between the frames. Therefore, the correlation-based determination techniques determine picture types for the frames based on the video transitional effects and the temporal similarities. The correlation-based determination techniques may calculate the first order cross-correlations between images within pairs of frames, or between sets of subimages within pairs of frames that are then averaged over the subimages for each of the pairs of frames.
摘要翻译：本公开涉及用于基于帧之间的互相关来确定包括在视频序列中的多个帧中的每一个的图像类型的技术。互相关包括在视频序列中包括的帧内的图像信息之间的第一级互相关和第一级互相关对之间的二阶交叉相关。可以分析第一级互相关以检测帧之间的视频过渡效应。可以相对分析第一和第二阶互相关以确定帧之间的时间相似性。因此，基于相关的确定技术基于视频过渡效应和时间相似性来确定帧的图像类型。基于相关的确定技术可以计算帧对之间的图像之间的第一阶交叉相关，或者在帧对之间的子图像集合之间的第一阶交叉相关，然后在每对帧对的子图像上进行平均。

5. 发明申请

WO2008109471A1 EFFICIENT VIDEO BLOCK MODE CHANGES IN SECOND PASS VIDEO CODING 审中-公开
标题翻译：第二次视频编码中的高效视频模块更改
公开(公告)号：WO2008109471A1
公开(公告)日：2008-09-12
申请号：PCT/US2008/055553
申请日：2008-02-29
申请人： QUALCOMM Incorporated , CHEN, Peisong , BHAMIDIPATI, Phanikumar , SUBRAMANIA, Sitaraman Ganapathy , ROHATGI, Amit , OGUZ, Seyfullah Halit , SWAZEY, Scott T.
发明人： CHEN, Peisong , BHAMIDIPATI, Phanikumar , SUBRAMANIA, Sitaraman Ganapathy , ROHATGI, Amit , OGUZ, Seyfullah Halit , SWAZEY, Scott T.
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/194 , H04N19/109 , H04N19/124 , H04N19/147 , H04N19/15 , H04N19/164 , H04N19/176 , H04N19/19 , H04N19/61
摘要： This disclosure describes techniques for second pass video coding in a multi-pass video coding scenario. The coding modes for some video blocks encoded during a second pass may be changed relative to the coding modes used for such video blocks in the first pass. However, motion information does not change for those video blocks that have the changed modes. In particular, mode changes can be made in the second coding pass relative to the modes used in the first coding pass without changing the manner in which motion information will be derived at the decoder, e.g., due to similarities between the original modes of the first pass and changed modes used in the second pass. The second pass coding techniques may also include quantization parameter adjustments, and the mode changes can cause such quantization parameter adjustments to have more profound refinements effects on the second pass coding.
摘要翻译：本公开描述了在多遍视频编码场景中的第二遍视频编码的技术。在第二遍期间编码的一些视频块的编码模式可以相对于在第一遍中用于这种视频块的编码模式而改变。但是，对于那些具有改变模式的视频块，运动信息不会改变。特别地，相对于在第一编码通道中使用的模式，可以在第二编码通过中进行模式改变，而不改变在解码器处将导出运动信息的方式，例如，由于第一编码第二次通过中使用的通过和更改模式。第二遍编码技术还可以包括量化参数调整，并且模式改变可以导致这样的量化参数调整对第二遍编码具有更深刻的细化效果。

6. 发明申请

WO2008061211A2 SYSTEMS AND METHODS FOR APPLICATIONS USING CHANNEL SWITCH FRAMES 审中-公开
标题翻译：使用信道切换框架的应用系统和方法
公开(公告)号：WO2008061211A2
公开(公告)日：2008-05-22
申请号：PCT/US2007/084885
申请日：2007-11-15
申请人： QUALCOMM Incorporated , WALKER, Gordon Kent , RAVEENDRAN, Vijayalakshmi R. , LOUKAS, JR., Serafim S. , OGUZ, Seyfullah Halit , SHI, Fang , SUBRAMANIA, Sitaraman Ganapathy , BHAMIDIPATI, Phanikumar , DETERMAN, James T.
发明人： WALKER, Gordon Kent , RAVEENDRAN, Vijayalakshmi R. , LOUKAS, JR., Serafim S. , OGUZ, Seyfullah Halit , SHI, Fang , SUBRAMANIA, Sitaraman Ganapathy , BHAMIDIPATI, Phanikumar , DETERMAN, James T.
IPC分类号： H04N7/24
CPC分类号： H04N7/163 , H04N21/234327 , H04N21/235 , H04N21/278 , H04N21/4316 , H04N21/435 , H04N21/4384 , H04N21/44004 , H04N21/4438 , H04N21/47 , H04N21/4858 , H04N21/6405
摘要： Techniques for video encoding and decoding a common guide media logic channel (MLC) to enable fast acquisition and re/synchronization of the video stream while preserving compression efficiency are provided. Systems and methods to process multimedia data using channel switch frames are presented. The system comprises an encoder operative to generate a common guide media logical channel (MLC) of a plurality of channel switch frames (CSFs), each respective active channel having one or more CSFs in the guide MLC. The decoder in the system is operative to decode a set of the plurality of CSFs from the guide MLC. The decoder simultaneously displays programming content of the decoded set of the plurality of CSFs on a display and automatically switches to a primary bitstream of an active channel associated with a selected one displayed CSF.
摘要翻译：提供了用于视频编码和解码通用引导媒体逻辑信道（MLC）的技术，以实现视频流的快速采集和再同步，同时保持压缩效率。介绍了使用信道交换帧处理多媒体数据的系统和方法。该系统包括编码器，其可操作以生成多个信道切换帧（CSF）的公共引导媒体逻辑信道（MLC），每个相应的活动信道在引导MLC中具有一个或多个CSF。系统中的解码器可操作以从引导MLC解码多个CSF的集合。解码器同时在显示器上显示多个CSF的解码集合的编程内容，并且自动切换到与所选择的所显示的CSF相关联的活动信道的主比特流。

7. 发明申请

WO2007038701A1 SCALABILITY TECHNIQUES BASED ON CONTENT INFORMATION 审中-公开
标题翻译：基于内容信息的可扩展性技术
公开(公告)号：WO2007038701A1
公开(公告)日：2007-04-05
申请号：PCT/US2006/037948
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 classifying content of multimedia data, and encoding the multimedia data in a first data group and in a second data group based on the content classification, wherein the first data group comprises a coefficient and the second data group comprises a first differential refinement associated with the first data group coefficient. An apparatus for using content information for encoding multimedia data includes a content classifying module configured to classify content of multimedia data and provide content classification data, and an encoder configured to encode the multimedia data in a first data group and in a second data group based on the content classification, wherein the first data group comprises a coefficient and the second data group comprises a first differential refinement associated with the first data group coefficient
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：根据内容分类对多媒体数据的内容进行分类，并将第一数据组和第二数据组中的多媒体数据进行编码，其中第一数据组包括系数，第二数据组包括与第一数据组系数相关的第一差分精化。一种使用内容信息来编码多媒体数据的装置，包括：内容分类模块，被配置为对多媒体数据的内容进行分类并提供内容分类数据;以及编码器，被配置为基于第一数据组和第二数据组中的多媒体数据进行编码所述内容分类，其中所述第一数据组包括系数，并且所述第二数据组包括与所述第一数据组系数相关联的第一差分细化

8. 发明申请

WO2006020019A1 H.264 SPATIAL ERROR CONCEALMENT BASED ON THE INTRA-PREDICTION DIRECTION 审中-公开
标题翻译：基于帧内预测方向的H.264空间误差隐藏
公开(公告)号：WO2006020019A1
公开(公告)日：2006-02-23
申请号：PCT/US2005/025155
申请日：2005-07-15
申请人： QUALCOMM INCORPORATED , OGUZ, Seyfullah Halit , RAVEENDRAN, Vijayalakshmi R.
发明人： OGUZ, Seyfullah Halit , RAVEENDRAN, Vijayalakshmi R.
IPC分类号： H04N7/68
CPC分类号： H04N19/895 , H04N19/593 , H04N19/61
摘要： Methods and apparatus for spatial error concealment. A method is provided for spatial error concealment. The method includes detecting a damaged macroblock, and obtaining coded macroblock parameters associated with one or more neighbor macroblocks. The method also includes generating concealment parameters based on the coded macroblock parameters, and inserting the concealment parameters into a video decoding system.
摘要翻译：用于空间错误隐藏的方法和设备
提供了一种用于空间错误隐藏的方法。该方法包括检测损坏的宏块，并获得与一个或多个相邻宏块相关联的编码宏块参数。该方法还包括基于编码的宏块参数生成隐藏参数，并将隐藏参数插入到视频解码系统中。

9. 发明申请

WO2008080144A2 TECHNIQUES FOR CONTENT ADAPTIVE VIDEO FRAME SLICING AND NON-UNIFORM ACCESS UNIT CODING 审中-公开
标题翻译：内容自适应视频帧切换和非均匀访问单元编码技术
公开(公告)号：WO2008080144A2
公开(公告)日：2008-07-03
申请号：PCT/US2007/088738
申请日：2007-12-21
申请人： QUALCOMM INCORPORATED , OGUZ, Seyfullah Halit
发明人： OGUZ, Seyfullah Halit
IPC分类号： H04N7/26
CPC分类号： H04N19/577 , H04N19/129 , H04N19/137 , H04N19/142 , H04N19/174 , H04N19/527 , H04N19/537 , H04N19/61
摘要： Techniques for content adaptive video frame slicing and non-uniform access unit coding for improved coding efficiency are provided. An encoder and decoder are disclosed to process (encode or decode) a single non-uniform video access unit (VAU) employing flexible macroblock ordering (FMO) in conjunction with different slice coding types in response to global motion detection of a camera pan or a scroll within the single VAU.
摘要翻译：提供了用于内容自适应视频帧分片和用于提高编码效率的不均匀访问单元编码的技术。公开了一种编码器和解码器，以响应于相机平板或全景摄像机的全局运动检测，结合不同的片编码类型来处理（编码或解码）使用灵活的宏块排序（FMO）的单个非均匀视频访问单元（VAU）在单个VAU内滚动。

10. 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.

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