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1. 发明申请

WO2023020982A1 SYSTEMS AND METHODS FOR PROCESSING VIDEO CONTENT BASED ON VIEWING CONDITIONS 审中-公开
公开(公告)号：WO2023020982A1
公开(公告)日：2023-02-23
申请号：PCT/EP2022/072746
申请日：2022-08-15
申请人： INTERDIGITAL VC HOLDINGS FRANCE, SAS
发明人： REINHARD, Erik , MORVAN, Patrick , FRANCOIS, Edouard , CHAMARET, Christel
IPC分类号： H04N19/127
摘要： Systems, methods, and instrumentalities are disclosed for adapting media (e.g., video) processing operations and/or parameters based on one or more viewing conditions in a media environment (e.g., to achieve power saving). Such viewing conditions may include a distance between a display device and a viewer, a viewpoint or viewing direction of the viewer towards the display device, and/or an ambient light level in the media environment. Aspects of the medical processing that may be adapted based on the viewing conditions may be associated with deblocking, sample adaptive offset (SAO) filtering, adaptive loop filtering (ALF), cross component adaptive loop filtering (CCALF), motion compensation, post-inter prediction processing, bi-prediction, residual scaling, luma mapping, chroma residual scaling (LMCS), geometric block partitioning, HDR signal reconstruction, etc.

2. 发明申请

WO2022144184A1 PRIORITIZED DECODING AND OUTPUT OF PARTS OF A PICTURE IN VIDEO CODING 审中-公开
公开(公告)号：WO2022144184A1
公开(公告)日：2022-07-07
申请号：PCT/EP2021/086136
申请日：2021-12-16
申请人： KONINKLIJKE KPN N.V. , NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
发明人： POTETSIANAKIS, Emmanouil , THOMAS, Emmanuel
IPC分类号： H04N19/127 , H04N19/159 , H04N19/167 , H04N19/174 , H04N19/176 , H04N19/169 , H04N19/436 , H04N19/593 , H04N19/70
摘要： Methods and apparatus for processing an encoded representation of a sequence of pictures are disclosed, wherein the method includes: allocating memory for a current picture of the sequence of pictures in a decoded picture buffer, DPB; receiving a bitstream comprising an encoded representation of the current picture, and storing the encoded representation as a plurality of decoding units DUs, in a coded picture buffer, CPB, each of the plurality of DUs comprising an encoded set of pixels, wherein no coding dependency exists between coded pixels of different DUs of the current picture; receiving prioritization information associated with each of the plurality of DUs stored in the CPB, the prioritization information defining a decoding order in which the DUs of the current picture are being decoded; decoding one or more of said plurality of DU's into one or more decoded DU's, in accordance with said decoding order, each decoded DU comprising a set of pixels., each set of pixels being associated with a different area in the current picture; storing the sets of pixels in the DPB, a set of pixels being stored at a location in the allocated memory of the DPB that corresponds to a position of the area in the current picture; and, outputting as a partial output, one or more sets of pixels of decoded DUs of the current picture in accordance with the decoding order, while other DUs of the current picture are being decoded or received by the decoding apparatus.

3. 发明申请

WO2022043724A1 METHOD AND APPARATUS FOR MULTI-ADAPTER EXECUTION OF LOOK AHEAD VIDEO ENCODING 审中-公开
公开(公告)号：WO2022043724A1
公开(公告)日：2022-03-03
申请号：PCT/IB2020/000828
申请日：2020-08-27
申请人： INTEL CORPORATION
发明人： ARISTARKHOV, Vasily
IPC分类号： H04N19/127 , H04N19/423 , H04N19/436
摘要： A multi-adapter encoding process where the first adapter is used to execute a look-ahead encoding process while the second adapter is used to execute a main encoding process is provided. The look-ahead encode and main encode can be executed concurrently on the different adapters. Additionally, the first adapter can execute the look-ahead encoding process without feedback from the second adapter, or the main encoding process.

4. 发明申请

WO2020003264A3 FILTERING OF ZERO UNIT 审中-公开
公开(公告)号：WO2020003264A3
公开(公告)日：2020-01-02
申请号：PCT/IB2019/055553
申请日：2019-07-01
申请人： BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD. , BYTEDANCE INC.
发明人： ZHANG, Kai , ZHANG, Li , LIU, Hongbin , CHUANG, Hsiao Chiang , WANG, Yue
IPC分类号： H04N19/117 , H04N19/127 , H04N19/157 , H04N19/167 , H04N19/176 , H04N19/82
摘要： Devices, systems and methods for using zero-units in video and image coding are described. In a representative aspect, a method for video coding includes making a determination, for a block of video data having at least a height or a width that is a non-power-of-two number of pixels, to encode the block of video data into a bitstream representation without a transform operation and performing an in-loop filtering on a result of the encoding,wherein a type of the in-loop filter is selected based on the determination.

5. 发明申请

WO2019203036A1 符号化装置、復号装置、符号化方法及び復号方法审中-公开
公开(公告)号：WO2019203036A1
公开(公告)日：2019-10-24
申请号：PCT/JP2019/015267
申请日：2019-04-08
申请人：パナソニックインテレクチュアルプロパティコーポレーションオブアメリカ
发明人：安倍　清史 , 加納　龍一 , 遠間　正真 , 西　孝啓
IPC分类号： H04N19/127 , H04N19/176 , H04N19/436 , H04N19/513 , H04N19/583
摘要：符号化装置（１００）は、動画像を構成する符号化対象ブロックの符号化においてインター予測を行う符号化装置であって、回路（１６０）と、メモリ（１６２）とを備え、回路（１６０）は、メモリ（１６２）を用いて、符号化対象ブロックの周辺の輝度と参照ブロックの周辺の輝度とを用いて符号化対象ブロックの予測画像を補正する第１処理を行う場合、参照ブロックから得られる輝度の空間的な勾配を用いて予測画像を補正する第２処理を含む１つ以上の処理を行わずに、符号化対象ブロックのインター予測を行う。

6. 发明申请

WO2016195998A1 Dynamic Dependency Breaking in Data Encoding 审中-公开
标题翻译：动态依赖破坏数据编码
公开(公告)号：WO2016195998A1
公开(公告)日：2016-12-08
申请号：PCT/US2016/032867
申请日：2016-05-17
申请人： CISCO TECHNOLOGY, INC.
发明人： DAVIES, Thomas James
IPC分类号： H04N19/127 , H04N19/42 , H04N19/105 , H04N19/17 , H04N19/134 , H04N19/196 , H04N19/46 , H04N19/436
CPC分类号： H04N19/97 , H04N19/105 , H04N19/117 , H04N19/127 , H04N19/13 , H04N19/134 , H04N19/156 , H04N19/164 , H04N19/167 , H04N19/17 , H04N19/172 , H04N19/198 , H04N19/40 , H04N19/436 , H04N19/46 , H04N19/52 , H04N19/70 , H04N19/80 , H04N19/91
摘要： In one embodiment, a method includes selecting a first video encoding task of the plurality of video encoding tasks, the first video encoding task having a first dependency upon a second video encoding task of the plurality of video encoding tasks. The method includes determining whether to break the first dependency and performing the first video encoding task based on the determination of whether to break the first dependency.
摘要翻译：在一个实施例中，一种方法包括：选择多个视频编码任务中的第一视频编码任务，第一视频编码任务具有与多个视频编码任务中的第二视频编码任务的第一依赖关系。该方法包括基于是否破坏第一依赖性的确定来确定是否中断第一依赖性并执行第一视频编码任务。

7. 发明申请

WO2016148848A1 STANDARD-GUIDED VIDEO DECODING PERFORMANCE ENHANCEMENTS 审中-公开
标题翻译：标准指导视频解码性能增强
公开(公告)号：WO2016148848A1
公开(公告)日：2016-09-22
申请号：PCT/US2016/018994
申请日：2016-02-23
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： SADHWANI, Shyam , WU, Yongjun , ZHANG, Wenbo , PRABHU, Sudhakar V.
IPC分类号： H04N19/70 , H04N19/46 , H04N19/127 , H04N19/44 , H04N21/854
CPC分类号： H04N19/70 , H04N19/127 , H04N19/44 , H04N19/46 , H04N21/85406
摘要： Disclosed herein are innovations in decoding compressed video media data. The disclosed innovations facilitate decoding operations with improved computational efficiency, faster speeds, reduced power, reduced memory usage, and/or reduced latency. In one embodiment, for example, an encoded bitstream of video media data is input from an external video content provider, the encoded bitstream being encoded according to a video codec standard. A decoder is then configured to decode the encoded bitstream based at least in part on supplemental information that identifies a property of the encoded bitstream but that is supplemental to the encoded bitstream (e.g., supplemental information that is not part of the encoded bitstream or its associated media container and that is specific (or related) to the application for which the bitstream is used and/or the standard by which the bitstream is encoded and/or encrypted).
摘要翻译：这里公开了解压缩视频媒体数据的创新。所公开的创新便于解码操作，提高计算效率，更快的速度，更低的功耗，减少的内存使用和/或减少的延迟。在一个实施例中，例如，从外部视频内容提供商输入视频媒体数据的编码比特流，编码比特流根据视频编解码器标准进行编码。解码器然后被配置为至少部分地基于标识编码比特流的属性的补充信息来解码编码比特流，但是补充编码比特流（例如，不是编码比特流的一部分的补充信息或其相关联的媒体容器，并且与使用比特流的应用和/或比特流被编码和/或加密的标准是特定的（或相关的））。

8. 发明申请

WO2016032765A1 CHROMA CACHE ARCHITECTURE IN BLOCK PROCESSING PIPELINES 审中-公开
标题翻译：块式加工管道中的色谱高速缓存架构
公开(公告)号：WO2016032765A1
公开(公告)日：2016-03-03
申请号：PCT/US2015/045129
申请日：2015-08-13
申请人： APPLE INC.
发明人： COTE, Guy , BRATT, Joseph, P. , MILLET, Timothy, J. , KONG, Shing, I. , CHENG, Joseph, J.
IPC分类号： H04N19/127 , H04N19/186 , H04N19/42 , H04N19/433
CPC分类号： H04N19/186 , G06F12/00 , G06F12/0207 , G06F12/0862 , G06F12/121 , G06F2212/1024 , G06F2212/455 , G06F2212/6024 , G06F2212/6026 , G06T1/60 , H04N19/127 , H04N19/172 , H04N19/176 , H04N19/423 , H04N19/433 , H04N19/439
摘要： Methods and apparatus for caching reference data in a block processing pipeline. A cache may be implemented to which reference data corresponding to motion vectors for blocks being processed in the pipeline may be prefetched from memory. Prefetches for the motion vectors may be initiated one or more stages prior to a processing stage. Cache tags for the cache may be defined by the motion vectors. When a motion vector is received, the tags can be checked to determine if there are cache block(s) corresponding to the vector (cache hits) in the cache. Upon a cache miss, a cache block in the cache is selected according to a replacement policy, the respective tag is updated, and a prefetch (e.g., via DMA) for the respective reference data is issued.
摘要翻译：在块处理流水线中缓存参考数据的方法和装置。可以实现缓存，其可以从存储器预取哪个对应于在流水线中处理的块的运动矢量的参考数据。可以在处理阶段之前一个或多个阶段启动用于运动矢量的预取。高速缓存的缓存标签可以由运动向量定义。当接收到运动矢量时，可以检查标签以确定是否存在与缓存中的向量（高速缓存命中）相对应的高速缓存块。在缓存未命中时，根据替换策略来选择高速缓存中的高速缓存块，相应的标签被更新，并且发出用于各个参考数据的预取（例如，经由DMA）。

9. 发明申请

WO2014205690A1 视频压缩编码方法及编码器审中-公开
公开(公告)号：WO2014205690A1
公开(公告)日：2014-12-31
申请号：PCT/CN2013/078027
申请日：2013-06-26
申请人：北京大学深圳研究生院
发明人：董胜富 , 王振宇 , 王荣刚 , 高文 , 王文敏 , 李英
IPC分类号： H04N19/436 , H04N19/127
CPC分类号： H04N19/436
摘要：本申请公开了一种视频压缩编码方法及编码器，主控模块将待编码的图像帧按照预定顺序逐个分发至空闲的帧编码模块后，帧编码模块中空闲的块编码模块根据对应图像帧中块的编码状态信息，互斥地选取具备编码条件但未编码的块进行编码，并在编码完成后更新块的编码状态信息，而当图像帧的编码完成后，更新帧编码模块的空闲状态信息。这样就能真正做到以块为任务分发单位，只要图像中可立即编码的块的数目超过块编码线程数，所有线程就能够被充分利用，大大减少了对下方宏块进行编码的线程出现等待的情况，进而减少了块间同步的次数，降低了并行视频压缩编码通信代价，提高了视频压缩编码性能。

10. 发明申请

WO2006090811A3 PIXEL INTERPOLATING METHOD AND DEVICE 审中-公开
标题翻译：像素插入方法和设备
公开(公告)号：WO2006090811A3
公开(公告)日：2006-10-19
申请号：PCT/JP2006303363
申请日：2006-02-17
申请人： MATSUSHITA ELECTRIC IND CO LTD , FUCHIGAMI IKUO
发明人： FUCHIGAMI IKUO
IPC分类号： G06T3/40 , H04N19/00 , H04N19/127 , H04N19/132 , H04N19/134 , H04N19/136 , H04N19/196 , H04N19/51 , H04N19/59 , H04N19/625 , H04N19/82 , H04N19/91
CPC分类号： G06T3/4007
摘要： The n-tap filtering for generating interpolated pixels is converted into calculation of terms consisting of the difference and sum of the pixel values of adjoining pixels. When the difference is equal to or less than a predetermined value, the calculation related to the terms including the difference is omitted, thereby reducing the calculation amount in generating the interpolated pixels. In loop processing according to a flow chart of the pixel interpolating method, the reference pixels are accessed by one pixel per one loop processing for reading pixel values thereof, and the difference and sum of the pixel values are calculate using the adjoining pixel value already read one loop before, thereby interpolating the pixel values of consecutive pixels to be interpolated. Consequently, redundant reading of pixel values is avoided, with further beneficial effects on speedy generation of the interpolated pixels and reduction of the power consumption therein.
摘要翻译：用于产生内插像素的n抽头滤波被转换为由相邻像素的像素值的差和和组成的项的计算。当差值等于或小于预定值时，省略与包括差异的术语相关的计算，从而减少产生内插像素的计算量。在根据像素内插方法的流程图的循环处理中，参考像素每一个循环处理访问一个像素，用于读取其像素值，并且使用已读取的相邻像素值来计算像素值的差和和之前一个循环，从而内插要插值的连续像素的像素值。因此，避免了像素值的冗余读取，对内插像素的快速生成和其中的功耗的降低具有进一步的有益效果。

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