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1. 发明申请

US20180269897A1 NON-BINARY CONTEXT MIXING COMPRESSOR/DECOMPRESSOR 审中-公开
公开(公告)号：US20180269897A1
公开(公告)日：2018-09-20
申请号：US15458651
申请日：2017-03-14
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： TOBIAS BLAETTLER , THOMAS MITTELHOLZER , THOMAS PARNELL , CHARALAMPOS POZIDIS
IPC分类号： H03M7/30 , G06N99/00 , G06N7/08 , G06N3/04 , G06N3/08
CPC分类号： H03M7/30 , G06N3/04 , G06N3/08 , G06N5/046 , G06N7/08 , G06N20/00 , H03M7/3079 , H03M7/4018 , H04N19/13 , H04N19/91
摘要： A technique for non-binary context mixing in a compressor includes generating, by a plurality of context models, model predictions regarding a value of a next symbol to be encoded. A mixer generates a set of final predictions from the model predictions. An arithmetic encoder generates compressed data based on received input symbols and the set of final predictions. The received input symbols belong to an alphabet having a size greater than two and the mixer generates a feature matrix from the model predictions and trains a classifier that generates the set of final predictions.

2. 发明申请

US20180213231A1 ENTROPY ENCODER, VIDEO ENCODER INCLUDING THE SAME AND ELECTRONIC SYSTEM INCLUDING THE SAME 审中-公开
公开(公告)号：US20180213231A1
公开(公告)日：2018-07-26
申请号：US15699374
申请日：2017-09-08
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Chang-Soo PARK
IPC分类号： H04N19/13 , H04N19/91 , H04N19/184
CPC分类号： H04N19/13 , H03M7/4018 , H04N19/184 , H04N19/70 , H04N19/91
摘要： An entropy encoder includes a binarizer, a bin buffer, a plurality of bin encoding circuits and a bit generator. The binarizer generates a plurality of bin values based on a plurality of syntax elements. The bin buffer sequentially stores the plurality of bin values, and outputs at least some of the plurality of bin values based on a storing condition of the bin buffer. The plurality of bin encoding circuits performs an encoding operation on a single bin value based on a single context value when the bin buffer outputs the single bin value, and perform a multi-bin encoding operation on two or more bin values based on two or more context values when the bin buffer outputs the two or more bin values. The bit generator generates a bit stream based on bit values output from the plurality of bin encoding circuits.

3. 发明申请

US20180198463A1 METHOD OF COMPRESSION FOR FIXED-LENGTH DATA 审中-公开
公开(公告)号：US20180198463A1
公开(公告)日：2018-07-12
申请号：US15741337
申请日：2016-07-04
申请人： KinematicSoup Technologies Inc.
发明人： Justin McMICHAEL
IPC分类号： H03M7/30 , A63F13/31 , H04L29/06
CPC分类号： H03M7/3077 , A63F13/31 , A63F2300/534 , H03M7/30 , H03M7/3079 , H03M7/3086 , H03M7/4018 , H03M7/4056 , H04L67/38 , H04L69/04
摘要： The disclosure is directed at a method of data compression. The method includes creating a set of single composite data structures and then calculating a set of bit probabilities based on the set of single data structures. The bit probabilities are then used to create a set of intermediate buffers which are then sorted and traversed for data compression.

4. 发明授权

US09854264B2 Image coding method and image decoding method 有权
公开(公告)号：US09854264B2
公开(公告)日：2017-12-26
申请号：US15281417
申请日：2016-09-30
申请人： Sun Trust Patent
发明人： Takeshi Tanaka , Hisao Sasai
IPC分类号： H04N19/91 , H04N19/46 , H04N19/44 , H03M7/40 , H04N19/13 , H04N19/61 , H04N19/194 , H04N19/176
CPC分类号： H04N19/44 , H03M7/4006 , H03M7/4018 , H04N19/13 , H04N19/176 , H04N19/194 , H04N19/46 , H04N19/61 , H04N19/91
摘要： An image coding method for improving coding efficiency by using more appropriate probability information is provided. The image coding method includes: a first coding step of coding a first set of blocks included in a first region sequentially based on first probability information; and a second coding step of coding a second set of blocks included in a second region sequentially based on second probability information. In the first coding step, the first probability information is updated depending on data of a target block to be coded, after coding the target block and before coding a next target block. In the second coding step, the second probability information is updated depending on the first probability information updated in the first coding step, before coding the first target block.

5. 发明申请

US20170289574A1 TRANSFORM COEFFICIENT CODING 审中-公开
公开(公告)号：US20170289574A1
公开(公告)日：2017-10-05
申请号：US15621702
申请日：2017-06-13
申请人： GE Video Compression, LLC
发明人： Tung NGUYEN , Heiner KIRCHHOFFER , Detlev MARPE
IPC分类号： H04N19/60 , H03M7/40 , H04N19/91
CPC分类号： H04N19/60 , H03M7/4018 , H03M7/4075 , H04N19/91
摘要： An idea used herein is to use the same function for the dependency of the context and the dependency of the symbolization parameter on previously coded/decoded transform coefficients. Using the same function—with varying function parameter—may even be used with respect to different transform block sizes and/or frequency portions of the transform blocks in case of the transform coefficients being spatially arranged in transform blocks. A further variant of this idea is to use the same function for the dependency of a symbolization parameter on previously coded/decoded transform coefficients for different sizes of the current transform coefficient's transform block, different information component types of the current transform coefficient's transform block and/or different frequency portions the current transform coefficient is located within the transform block.

6. 发明授权

US09705526B1 Entropy encoding and decoding of media applications 有权
公开(公告)号：US09705526B1
公开(公告)日：2017-07-11
申请号：US15073029
申请日：2016-03-17
申请人： Intel Corporation
发明人： Kiran C. Veernapu
IPC分类号： H03M7/46 , H03M7/12 , H03M7/40
CPC分类号： H03M7/12 , H03M7/4018 , H03M7/4068 , H03M7/4075
摘要： Symbols above a particular number are encoded with Rice encoding. Symbols of the predetermined number or less are encoded with a different technique. The encoded symbols are decoded by determining if the symbols are above the particular number and then applying the corresponding decoding technique.

7. 发明授权

US09654139B2 High throughput binarization (HTB) method for CABAC in HEVC 有权
公开(公告)号：US09654139B2
公开(公告)日：2017-05-16
申请号：US13354272
申请日：2012-01-19
申请人： Seung-Hwan Kim , Kiran Misra , Louis Joseph Kerofsky , Christopher A. Segall
发明人： Seung-Hwan Kim , Kiran Misra , Louis Joseph Kerofsky , Christopher A. Segall
IPC分类号： H04N11/02 , H03M7/40 , H04N19/13 , H04N19/91 , H04N19/21
CPC分类号： H03M7/4018 , H04N19/13 , H04N19/21 , H04N19/91
摘要： Provided is an electronic device configured for high throughput binarization mode. The electronic device includes a processor and instructions stored in memory that is in electronic communication with the processor. The electronic device obtains a block of transformed and quantized coefficients (TCQs). The electronic device determines whether a high throughput binarization mode condition is met. If the condition is met, the electronic device uses the high throughput binarization mode to process the block. If the condition is not met, the electronic device does not use the high throughput binarization mode to process the block. The electronic device transmits the generated first or second bitstream to a decoder.

8. 发明授权

US09509989B2 Method and apparatus for reordered binarization of syntax elements in CABAC 有权
标题翻译： CABAC中语法元素重新二值化的方法和装置
公开(公告)号：US09509989B2
公开(公告)日：2016-11-29
申请号：US14234151
申请日：2012-08-02
申请人： Tzu-Der Chuang , Ching-Yeh Chen , Yu-Wen Huang
发明人： Tzu-Der Chuang , Ching-Yeh Chen , Yu-Wen Huang
IPC分类号： H04N19/10 , H04N19/21 , H04N19/60 , H04N19/70 , H03M7/40 , H04N19/88 , H04N19/436 , H04N19/91
CPC分类号： H03M7/4018 , H04N19/159 , H04N19/21 , H04N19/436 , H04N19/70 , H04N19/88 , H04N19/91
摘要： A method and apparatus of context-based adaptive binary arithmetic encoding/decoding for syntax elements of one or more blocks are disclosed. According to one embodiment of the present invention, the binarization results of the x and y positions of the last significant coefficient of a transform unit are reordered by collecting the bypass bins together. According to another embodiment of the present invention, binarization results of syntax elements from two or more of four Intra N×N prediction units, including prev_intra_luma_pred_flag, rem_intra_luma_pred_mode, and mpm_idx are reordered by collecting the bypass bins together. In yet another embodiment according to the present invention, the binarization results of other syntax elements are also reordered by collecting bypass bins together. Furthermore, the above reordering of binarization results may be used for binarization results corresponding to a block and its neighboring blocks.
摘要翻译：公开了用于一个或多个块的语法元素的基于上下文的自适应二进制算术编码/解码的方法和装置。根据本发明的一个实施例，变换单元的最后一个有效系数的x和y位置的二值化结果通过将旁路箱收集在一起来重新排序。根据本发明的另一实施例，通过将旁路箱收集在一起来重新排序，包括prev_intra_luma_pred_flag，rem_intra_luma_pred_mode和mpm_idx的四个内部N×N个预测单元中的两个或更多个的语法元素的二值化结果。在根据本发明的另一个实施例中，其他语法元素的二值化结果也通过将旁路容器收集在一起来重新排序。此外，二值化结果的上述重新排序可以用于对应于块及其相邻块的二值化结果。

9. 发明申请

US20160309364A1 ENHANCED COMPRESSION FORMATS FOR DATA COMPRESSION 审中-公开
标题翻译：数据压缩的增强型压缩格式
公开(公告)号：US20160309364A1
公开(公告)日：2016-10-20
申请号：US15095374
申请日：2016-04-11
申请人： QUALCOMM Incorporated
发明人： Shailesh MAHESHWARI , Leena ZACHARIAS , Aziz GHOLMIEH , Srinivasan BALASUBRAMANIAN , Vishal DALMIYA , Ashwini RAINA , Rohit KAPOOR
IPC分类号： H04W28/06 , H04W72/04
CPC分类号： H04W28/06 , H03M7/30 , H03M7/4018 , H04L69/04
摘要： Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to enhanced compression formats for data compression (e.g., uplink data compression (UDC)). A method is provided for wireless communications. The method generally includes determining one or more blocks of data in a current packet matching one or more blocks of data in one or more portions of one or more previous packets stored in a memory, compressing at least a portion of the current packet based on an enhanced compression format having reduced metadata relative to another compression format to indicate one or more of the matching blocks of data, and transmitting the compressed current packet. Numerous other aspects are provided.
摘要翻译：本公开的某些方面通常涉及无线通信，更具体地涉及用于数据压缩的增强压缩格式（例如，上行链路数据压缩（UDC））。提供了一种用于无线通信的方法。该方法通常包括确定当前分组中匹配一个或多个数据块中的一个或多个数据块，所述数据块在存储在存储器中的一个或多个先前分组的一个或多个部分中，基于一个或多个先前分组压缩当前分组的至少一部分增强的压缩格式相对于另一种压缩格式具有减少的元数据，以指示一个或多个匹配的数据块，并且发送压缩的当前分组。提供了许多其他方面。

10. 发明授权

US09386323B2 Parameter update method for entropy coding and decoding of conversion coefficient level, and entropy coding device and entropy decoding device of conversion coefficient level using same 有权
标题翻译：用于熵编码和转换系数级解码的参数更新方法，以及使用相同的转换系数级别的熵编码装置和熵解码装置
公开(公告)号：US09386323B2
公开(公告)日：2016-07-05
申请号：US14645552
申请日：2015-03-12
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Chan-yul Kim , Jae-hyun Kim , Jeong-hoon Park
IPC分类号： H04N19/60 , H04N19/70 , H04N19/463 , H04N19/91 , H04N19/44 , H04N19/196 , H04N19/13 , H04N19/122 , H04N19/96 , H04N19/157 , H04N19/18 , H03M7/40
CPC分类号： H04N19/13 , H03M7/4018 , H03M7/4075 , H04N19/115 , H04N19/122 , H04N19/136 , H04N19/139 , H04N19/157 , H04N19/18 , H04N19/184 , H04N19/196 , H04N19/44 , H04N19/463 , H04N19/60 , H04N19/70 , H04N19/91 , H04N19/96
摘要： Methods and apparatuses for decoding and encoding video are provided. A method of decoding video includes obtaining bit strings corresponding to current transformation coefficient level information by arithmetic decoding a bitstream based on a context model; determining a current binarization parameter by updating or maintaining a previous binarization parameter based on a comparison of a threshold and a size of a previous transformation coefficient; obtaining the current transformation coefficient level information by performing de-binarization of the bit strings using the determined current binarization parameter; and generating a size of a current transformation coefficient using the current transformation coefficient level information, wherein the current binarization parameter has a value equal to or smaller than a predetermined value.
摘要翻译：提供了解码和编码视频的方法和装置。解码视频的方法包括：通过基于上下文模型对位流进行算术解码来获得与当前变换系数电平信息相对应的位串; 基于阈值和先前变换系数的大小的比较，通过更新或维持先前的二值化参数来确定当前的二值化参数; 通过使用所确定的当前二值化参数来执行位串的二进制化来获得当前变换系数电平信息; 以及使用当前变换系数水平信息生成当前变换系数的大小，其中当前二值化参数具有等于或小于预定值的值。

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