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1. 发明申请

WO2010039492A2 OFFSET CALCULATION IN SWITCHED INTERPOLATION FILTERS 审中-公开
标题翻译：开关插入滤波器的偏移计算
公开(公告)号：WO2010039492A2
公开(公告)日：2010-04-08
申请号：PCT/US2009/057831
申请日：2009-09-22
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , MOTTA, Giovanni , YE, Yan , PEISONG, Chen
发明人： KARCZEWICZ, Marta , MOTTA, Giovanni , YE, Yan , PEISONG, Chen
IPC分类号： H04N7/36
CPC分类号： H04N7/50 , H04N19/172 , H04N19/176 , H04N19/52 , H04N19/523 , H04N19/577 , H04N19/61
摘要： This disclosure describes techniques for adding offset to predictive video blocks during video coding. In one example, a method of encoding a video block includes interpolating a first block of predictive values based on a first reference video unit within a first list of reference data, and a second block of predictive values based on a second reference video unit within a second list of reference data, calculating, for sub-integer pixel positions, a first offset value based on the first block and the current video block, and a second offset value based on the first offset value and the second block, determining a final block of offset values based on the first block of predictive values, the second block of predictive values, the first offset values, and the second offset values, and encoding the current video block based on the final block of offset values.
摘要翻译：本公开描述了在视频编码期间将偏移量添加到预测视频块的技术。在一个示例中，编码视频块的方法包括基于第一参考数据列表内的第一参考视频单元和基于第一参考视频单元中的第二参考视频单元的第二块预测值来内插第一预测值块参考数据的第二列表，针对子整数像素位置，基于第一块和当前视频块计算第一偏移值，以及基于第一偏移值和第二块计算第二偏移值，确定最终块基于预测值的第一块，预测值的第二块，第一偏移值和第二偏移值，并且基于最终的偏移值块对当前视频块进行编码。

2. 发明申请

WO2010005808A1 VIDEO ENCODING BY FILTER SELECTION 审中-公开
标题翻译：通过过滤器选择的视频编码
公开(公告)号：WO2010005808A1
公开(公告)日：2010-01-14
申请号：PCT/US2009/048829
申请日：2009-06-26
申请人： QUALCOMM INCORPORATED , MOTTA, Giovanni , KARCZEWICZ, Marta , YE, Yan
发明人： MOTTA, Giovanni , KARCZEWICZ, Marta , YE, Yan
IPC分类号： H04N7/26
CPC分类号： H04N19/577 , H04N19/117 , H04N19/136 , H04N19/147 , H04N19/19 , H04N19/192 , H04N19/523 , H04N19/61 , H04N19/80
摘要： A method and a device are described for selecting between multiple available filters in an encoder to provide a frame having a low error and distortion rate. For each full and sub pixel position, determining whether to use an alternative filter over the default filter during interpolation by estimating the rate distortion gain of using each filter and signaling to the decoder the optimal filter(s) applied to each full and sub-pixel position. In one embodiment, identifying a reference frame and a current frame, interpolating the reference frame using a default filter to create a default interpolated frame, interpolating the reference frame using an alternative filter to create an alternative interpolated frame, determining for each sub-pixel position whether to use the default filter or the alternative filter based on a minimal cost to generate a final reference frame.
摘要翻译：描述了用于在编码器中的多个可用滤波器之间进行选择以提供具有低误差和失真率的帧的方法和装置。对于每个完整和子像素位置，通过估计使用每个滤波器的速率失真增益并向解码器发送信号，确定在插值期间是否使用默认滤波器上的替代滤波器，将最佳滤波器应用于每个全像素和子像素位置。在一个实施例中，识别参考帧和当前帧，使用默认滤波器内插参考帧以创建默认内插帧，使用替代滤波器内插参考帧以创建替代插值帧，确定每个子像素位置是否使用默认过滤器或替代过滤器基于最小成本生成最终参考帧。

3. 发明申请

WO2010039288A1 DIGITAL VIDEO CODING WITH INTERPOLATION FILTERS AND OFFSETS 审中-公开
标题翻译：数字视频编码与插值滤波器和偏移
公开(公告)号：WO2010039288A1
公开(公告)日：2010-04-08
申请号：PCT/US2009/043391
申请日：2009-05-08
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , MOTTA, Giovanni , YE, Yan , CHEN, Peisong
发明人： KARCZEWICZ, Marta , MOTTA, Giovanni , YE, Yan , CHEN, Peisong
IPC分类号： H04N7/26
CPC分类号： H04N19/577 , H04N19/117 , H04N19/136 , H04N19/147 , H04N19/19 , H04N19/192 , H04N19/523 , H04N19/59 , H04N19/61 , H04N19/82
摘要： This disclosure describes techniques for encoding digital video data using interpolation filters and offsets. An encoder may be configured to select interpolation filters for sub-pixel precision motion estimation based on historical interpolation results obtained for previously encoded video units, such as frames or slices. The encoder also may be configured to compute and assign offsets to the sub-pixel positions after interpolation based on differences between a reference unit and the unit to be coded. The computation and assignment of offsets may be performed before motion estimation. Motion estimation may be refined so that the motion search considers sub-pixel positions to which offsets have been previously added and evaluates sub-pixel positions that have a non-zero offset. In some cases, interpolation filter selection, offset computation, and/or refined motion estimation for a given unit may be performed in a single encoding pass.
摘要翻译：本公开描述了使用内插滤波器和偏移量对数字视频数据进行编码的技术。编码器可以被配置为基于针对先前编码的视频单元（诸如帧或片）获得的历史插值结果来选择子像素精度运动估计的内插滤波器。编码器还可以被配置为基于参考单元和要编码的单元之间的差异来计算和分配插补之后的子像素位置的偏移。可以在运动估计之前执行偏移的计算和分配。可以改进运动估计，使得运动搜索考虑先前已经添加了偏移的子像素位置，并评估具有非零偏移的子像素位置。在一些情况下，可以在单个编码过程中执行用于给定单元的内插滤波器选择，偏移计算和/或精细运动估计。

4. 发明申请

WO2010083438A2 FILTER PREDICTION BASED ON ACTIVITY METRICS IN VIDEO CODING 审中-公开
标题翻译：基于视频编码的活动度量的滤波器预测
公开(公告)号：WO2010083438A2
公开(公告)日：2010-07-22
申请号：PCT/US2010/021239
申请日：2010-01-15
申请人： QUALCOMN INCORPORATED , CHEN, Peisong , KARCZEWICZ, Marta , MOTTA, Giovanni , YE, Yan
发明人： CHEN, Peisong , KARCZEWICZ, Marta , MOTTA, Giovanni , YE, Yan
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/61 , H04N19/80 , H04N19/82
摘要： This disclosure describes techniques associated with filtering of video data in a video encoding and/or decoding process. In accordance with this disclosure, filtering is applied at an encoder, and filter information is encoded in the bitstream to identify the filtering that was applied at the encoder. Different types of filtering may be applied based on an activity metric determined for the video data. Moreover, in accordance with this disclosure, the manner in which the filter information is encoded into the bitstream may be dependent on the activity metric. In particular, for a first range of the activity metric, one or more filters are encoded directly, and for a second range of the activity metric, one or more filters are predictively encoded.
摘要翻译：本公开描述与视频编码和/或解码过程中的视频数据的过滤相关联的技术。根据本公开，在编码器处应用滤波，并且将滤波器信息编码在比特流中以识别在编码器处应用的滤波。可以基于为视频数据确定的活动度量来应用不同类型的过滤。此外，根据本公开，过滤器信息被编码到比特流中的方式可以取决于活动度量。特别地，对于活动度量的第一范围，一个或多个过滤器被直接编码，并且对于活动度量的第二范围，一个或多个过滤器被预测编码。

5. 发明申请

WO2010102233A1 SYSTEM AND METHOD TO PROCESS MOTION VECTORS OF VIDEO DATA 审中-公开
标题翻译：用于处理视频数据运动矢量的系统和方法
公开(公告)号：WO2010102233A1
公开(公告)日：2010-09-10
申请号：PCT/US2010/026399
申请日：2010-03-05
申请人： QUALCOMM INCORPORATED , DANE, Gokce , MOTTA, Giovanni
发明人： DANE, Gokce , MOTTA, Giovanni
IPC分类号： H04N7/26 , H04N7/36 , H04N7/46
CPC分类号： H04N19/577 , H04N19/109 , H04N19/132 , H04N19/139 , H04N19/154 , H04N19/176 , H04N19/44 , H04N19/51 , H04N19/513 , H04N19/587 , H04N19/86
摘要： Systems and methods to process motion vectors of video data are disclosed. According to an embodiment, an intra-block in a video frame of the video data is identified. At least a first set and a second set of inter-blocks that neighbor the identified intra-block are identified, where each inter-block in a set of inter-blocks has a motion vector associated therewith. Data of the first and second set of inter-blocks is evaluated to determine an error associated with each of the first and second sets. A motion vector associated with motion vectors of the inter-blocks of the set with the least error is determined. The determined motion vector may be associated with the identified intra-block.
摘要翻译：公开了处理视频数据的运动矢量的系统和方法。根据实施例，识别视频数据的视频帧中的块内块。识别与识别的块内相邻的至少第一集合和第二组块之间，其中一组块内的每个块间具有与其相关联的运动向量。评估第一组和第二组间块的数据以确定与第一组和第二组中的每一组相关联的错误。确定与具有最小误差的集合的块间运动矢量相关联的运动矢量。确定的运动矢量可以与所识别的块内相关联。

6. 发明申请

WO2012033501A1 SYSTEMS AND METHODS FOR DATA COMPRESSION 审中-公开
标题翻译：用于数据压缩的系统和方法
公开(公告)号：WO2012033501A1
公开(公告)日：2012-03-15
申请号：PCT/US2010/049132
申请日：2010-09-16
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. , MOTTA, Giovanni , SLYZ, Marko , MCGHEE, LaShawn , SAYDAG, Sait Can , O'NEILL, Brian
发明人： MOTTA, Giovanni , SLYZ, Marko , MCGHEE, LaShawn , SAYDAG, Sait Can , O'NEILL, Brian
IPC分类号： H04W4/18 , H04W88/02
CPC分类号： H03M7/40
摘要： In one embodiment, an initial series of bytes are scanned to determine a frequency of occurrence within the initial series of bytes for a plurality of byte strings (52). A data structure is generated containing the plurality of byte strings and count values representing a frequency of occurrence for the plurality of byte strings in the initial series of bytes (54). A most common byte string of the plurality of byte strings in the initial series of bytes is determined from the count values (56). Each instance of the most common byte string in the initial series of bytes is replaced with a first substitute byte string to form a revised series of bytes (58). A most common byte string in the revised series of bytes is determined from the data structure without resetting the count values associated with at least some of the plurality of byte strings (60).
摘要翻译：在一个实施例中，扫描初始系列字节以确定多个字节串（52）的初始字节序列内出现的频率。生成包含多个字节串的数据结构和表示初始字节序列（54）中的多个字节串的出现频率的计数值。从计数值（56）确定初始字节序列中的多个字节串中最常见的字节串。在初始系列字节中，最常见的字节串的每个实例都被替换为第一个替代字节串，以形成修改后的字节序列（58）。根据数据结构确定经修改的字节序列中的最常见的字节串，而不重置与多个字节串（60）中的至少一些相关联的计数值。

7. 发明申请

WO2021050039A1 COMPRESSION OF DATA THAT EXHIBITS MIXED COMPRESSIBILITY 审中-公开
公开(公告)号：WO2021050039A1
公开(公告)日：2021-03-18
申请号：PCT/US2019/050205
申请日：2019-09-09
申请人： GOOGLE LLC , MOTTA, Giovanni , BEAUFAYS, Francoise , ZADRAZIL, Petr
发明人： MOTTA, Giovanni , BEAUFAYS, Francoise , ZADRAZIL, Petr
IPC分类号： H03M7/30 , H03M7/24 , G06N3/10
摘要： Systems and methods for compression of data that exhibits mixed compressibility, such as floating-point data, are provided. As one example, aspects of the present disclosure can be used to compress floating-point data that represents the values of parameters of a machine-learned model. Therefore, aspects of the present disclosure can be used to compress machine-learned models (e.g., for reducing storage requirements associated with the model, reducing the bandwidth expended to transmit the model, etc.).

8. 发明申请

WO2011136809A1 PREPROCESSOR FOR FILE UPDATING 审中-公开
标题翻译：用于文件更新的预处理程序
公开(公告)号：WO2011136809A1
公开(公告)日：2011-11-03
申请号：PCT/US2010/033261
申请日：2010-04-30
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. , MOTTA, Giovanni , SAYDAG, Sait Can , VARMA, Ashish Vinod , WU, Fu Jun
发明人： MOTTA, Giovanni , SAYDAG, Sait Can , VARMA, Ashish Vinod , WU, Fu Jun
IPC分类号： G06F9/44 , G06F9/45
CPC分类号： G06F8/41 , G06F8/36 , G06F8/65
摘要： A method for updating a computer file includes converting a first computer file to executable byte code and receiving a second computer file that includes a change that distinguishes the second computer file from the first computer file. The method also includes converting the second computer file to executable byte code and comparing at least a portion of the executable byte code of the second computer file with at least a portion of the executable byte code of the first computer file. The method further includes inserting, into the executable byte code the first computer file, a modification that causes at least a portion of the executable byte code of the first computer file to resemble the executable byte code of the second computer file.
摘要翻译：一种用于更新计算机文件的方法包括：将第一计算机文件转换为可执行字节代码，并接收包括将第二计算机文件与第一计算机文件区分开的改变的第二计算机文件。该方法还包括将第二计算机文件转换成可执行字节码，并将第二计算机文件的可执行字节码的至少一部分与第一计算机文件的可执行字节码的至少一部分进行比较。该方法还包括将第一计算机文件的可执行字节码的至少一部分类似于第二计算机文件的可执行字节码的修改插入可执行字节码中的第一计算机文件。

9. 发明申请

WO2007008242A1 CONTEXT IDENTIFICATION USING A DENOISED SIGNAL 审中-公开
标题翻译：使用DENOISED信号的语境识别
公开(公告)号：WO2007008242A1
公开(公告)日：2007-01-18
申请号：PCT/US2005/039925
申请日：2005-10-31
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L. P. , WEISSMAN, Itschak , ORDENTLICH, Erik , SEROUSSI, Gadiel , WEINBERGER, Marcelo , VERDU, Sergio , MOTTA, Giovanni
发明人： WEISSMAN, Itschak , ORDENTLICH, Erik , SEROUSSI, Gadiel , WEINBERGER, Marcelo , VERDU, Sergio , MOTTA, Giovanni
IPC分类号： G06T5/00
CPC分类号： G06T5/002 , G06T5/20 , G06T2207/20008 , G06T2207/20032 , G10L21/0208
摘要： Denoising such as discrete universal denoising (DUDE) that scans a noisy signal in an attempt to characterize probabilities of finding symbol values in a particular context in a clean signal can perform a rough denoising (1230) on the noisy signal and identify contexts from a roughly denoised signal. The rough denoising (1230) improves estimation of the statistical properties of the clean signal by reducing the false differentiation of contects that noise can otherwise create. Statistical information regarding occurrences of symbols in the noisy signal and corresponding contexts in the roughly denoised signal can then be used to denoise the noisy signal. The specifics of the rough denoising (1230) can be chosen based on knowledge of the noise or of clean date Alternatively, the DUDE can be used in an iterative fashion where the denoised signal produced from a prior iteration provides the contexts for the next iteration.
摘要翻译：去噪如离散通用去噪（DUDE），其扫描噪声信号以试图表征在干净信号中的特定上下文中找到符号值的概率，可对噪声信号执行粗略去噪（1230），并从粗略信号识别上下文去噪信号。粗糙去噪（1230）通过减少噪声可能产生的连接的假分化来改善干净信号的统计特性的估计。关于噪声信号中的符号出现的统计信息和粗略去噪信号中的对应上下文可以用于去噪噪声信号。粗略去噪（1230）的细节可以基于噪声或清洁日期的知识来选择。或者，DUDE可以以迭代方式使用，其中从先前迭代产生的去噪信号提供下一次迭代的上下文。

10. 发明申请

WO2012033498A1 SYSTEMS AND METHODS FOR DATA COMPRESSION 审中-公开
标题翻译：用于数据压缩的系统和方法
公开(公告)号：WO2012033498A1
公开(公告)日：2012-03-15
申请号：PCT/US2010/048437
申请日：2010-09-10
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. , MCGHEE, LaShawn , MOTTA, Giovanni , SLYZ, Marko
发明人： MCGHEE, LaShawn , MOTTA, Giovanni , SLYZ, Marko
IPC分类号： G06F9/44 , G06F17/00
CPC分类号： G06F17/30303 , H03M7/3088 , H03M7/3091
摘要： In one example embodiment, an updated version of a file is encoded via differential encoding from an original version of the file (50). A portion of the updated version of the file is selected and matched with at least one portion of the original version of the file (54). At least one dictionary entry is created in a dictionary associated with the differential encoding according to the matched at least one portion of the original version of the file (56).
摘要翻译：在一个示例实施例中，文件的更新版本通过来自文件（50）的原始版本的差分编码进行编码。选择文件的更新版本的一部分并与文件的原始版本的至少一部分（54）匹配。根据文件（56）的原始版本的匹配的至少一部分，在与差分编码相关联的字典中创建至少一个字典条目。

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