专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

US20180146197A1 ARTISTIC INTENT BASED VIDEO CODING 审中-公开
公开(公告)号：US20180146197A1
公开(公告)日：2018-05-24
申请号：US15567966
申请日：2015-04-21
申请人： Vid Scale, Inc.
发明人： Byung K. Yi , Yan Ye , Yuwen He , Xiaoyu Xiu , Yong He , Ralph Neff
IPC分类号： H04N19/167 , H04N19/85
CPC分类号： H04N19/167 , H04N19/115 , H04N19/124 , H04N19/14 , H04N19/162 , H04N19/17 , H04N19/182 , H04N19/186 , H04N19/85
摘要： Systems, methods, and instrumentalities are disclosed for artistic intent based content coding that preserves expressions of artistic intent in content. Expressions of artistic intent are identified (e.g. by signaling or content analysis) and expressed as a set of artistic intent positions PART and artistic intent characteristics CART, Artistic intent characteristics CART may be signaled and used to identify artistic intent positions PART. Artistic intent preservation coding and processing may be applied to sample positions PART to preserve characteristics CART. A coding user interface may permit a user to specify an artistic set (e.g. PART and/or CART) and to select and/or configure treatment of pixels and/or blocks associated with an artistic set, such as a fidelity enhancement, QP adjustment value and/or postprocessing. Content priority or importance levels may be impliedly and/or expressly indicated at fine (e.g. pixel, sample) and/or coarse (e.g. block) levels of content for varying (e.g. enhanced, reduced) levels of treatment in content coding, delivery, processing and/or error resilience/robustness.

22. 发明申请

US20170374384A1 PALETTE CODING FOR NON-4:4:4 SCREEN CONTENT VIDEO 审中-公开
公开(公告)号：US20170374384A1
公开(公告)日：2017-12-28
申请号：US15543852
申请日：2016-01-14
申请人： Vid Scale, Inc.
发明人： Xiaoyu Xiu , Yan Ye , Yuwen He
IPC分类号： H04N19/593 , H04N19/186 , H04N19/182 , H04N19/94 , H04N19/176
CPC分类号： H04N19/593 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/90 , H04N19/94
摘要： A video coding device may receive a video bit-stream that carries a video captured in a non-4:4:4 chroma format. A palette mode may be used to decode the video bit-stream. The video bit-stream may include data defining a palette table and a palette index map in a 4:4:4 chroma format for the current block. A luma sample value for a luma sample position in the non-4:4:4 chroma format may be determined based on the luma sample position, the palette index map and the palette table. A chroma sample position associated with the 4:4:4 chroma format on the palette index map may be derived based on the luma component to chroma component resolution ratio in the non-4:4:4 chroma format. A chroma sample value for a chroma sample position in non-444 chroma format may be determined based on the derived chroma sample position, the palette index map and the palette table.

23. 发明申请

US20160134868A1 INTER-LAYER PARAMETER SET FOR HEVC EXTENSIONS 审中-公开
标题翻译：用于HEVC扩展的层间参数设置
公开(公告)号：US20160134868A1
公开(公告)日：2016-05-12
申请号：US14898870
申请日：2014-06-18
申请人： VID SCALE, INC.
发明人： Yong He , Yan Ye , Yuwen He , Xiaoyu Xiu
IPC分类号： H04N19/112 , H04N19/136 , H04N19/186 , H04N19/70
CPC分类号： H04N19/112 , H04N19/136 , H04N19/186 , H04N19/30 , H04N19/70
摘要： A video coding device may provide video data processing. The video coding device may receive a plurality of video representation format subsets. The plurality of video representation format subsets may correspond to a plurality of layers. Each of the plurality of video representation subsets may include one or more video representation parameter values. The video coding device may receive a video representation format subset index (e.g., in a cross-layer parameter set) associated with a current layer. The video coding device may determine, using the video representation format subset index, one of the plurality of video representation format subsets associated with the current layer.
摘要翻译：视频编码装置可以提供视频数据处理。视频编码装置可以接收多个视频表示格式子集。多个视频表示格式子集可以对应于多个层。多个视频表示子集中的每一个可以包括一个或多个视频表示参数值。视频编码设备可以接收与当前层相关联的视频表示格式子集索引（例如，在跨层参数集中）。视频编码设备可以使用视频表示格式子集索引来确定与当前层相关联的多个视频表示格式子集中的一个。

24. 发明申请

US20160080751A1 INTER-COMPONENT DE-CORRELATION FOR VIDEO CODING 审中-公开
标题翻译：用于视频编码的组件间关联
公开(公告)号：US20160080751A1
公开(公告)日：2016-03-17
申请号：US14852260
申请日：2015-09-11
申请人： Vid Scale, Inc.
发明人： Xiaoyu Xiu , Yan Ye , Yuwen He
IPC分类号： H04N19/186 , H04N19/60 , H04N19/124
摘要： Cross-component prediction (CCP) and adaptive color transform (ACT) may be performed concurrently in a video coding system. CCP and ACT may be enabled/disabled at the same level (e.g. at the transform unit level) via an indicator signaled in the bitstream such as the ACT enable indicator for the CU. Inverse CCP and ACT may be operated at the same level (e.g. at the transform unit level). Prediction residuals may be converted to original color space without waiting for reconstruction of luma and chroma residuals of an entire prediction unit or coding unit. CCP and ACT transforms may be combined into one process to reduce encoding/decoding latency. Differences in dynamic ranges of color components may be compensated by variable dynamic range adjustments. Differences in bit depths between luma and chroma components may be compensated by selectively disabling the ACT coding tool, scaling a component output of the CCP, adjusting a quantization parameters (QPs) and/or shifting a component output of an inverse transform of the video coding system.
摘要翻译：跨分量预测（CCP）和自适应颜色变换（ACT）可以在视频编码系统中同时执行。 CCP和ACT可以经由比特流中指示的指示符（例如CU的ACT使能指示符）在相同级别（例如，在变换单元级别）处被允许/禁止。反相CCP和ACT可以在相同的电平（例如，在变换单元级）上操作。可以将预测残差转换成原色空间，而不用等待整个预测单元或编码单元的亮度和色度残差的重建。 CCP和ACT转换可以组合成一个过程以减少编码/解码延迟。可以通过可变动态范围调整来补偿颜色分量的动态范围的差异。可以通过选择性地禁用ACT编码工具，缩放CCP的分量输出，调整量化参数（QPs）和/或移动视频编码的逆变换的分量输出来补偿亮度和色度分量之间的位深度的差异系统。

25. 发明申请

US20150365666A1 ENHANCED DEBLOCKING FILTERS FOR VIDEO CODING 审中-公开
标题翻译：用于视频编码的增强型阻塞滤波器
公开(公告)号：US20150365666A1
公开(公告)日：2015-12-17
申请号：US14759606
申请日：2014-01-07
申请人： VID SCALE , INC.
发明人： Jie Dong , Yan Ye , Xiaoyu Xiu , Yuwen He
IPC分类号： H04N19/117 , H04N19/86 , H04N19/82
CPC分类号： H04N19/117 , H04N19/33 , H04N19/82 , H04N19/86
摘要： Deblocking filters used in video coding systems (e.g., single layer video coding systems or multi-layer video coding systems) may be enhanced. Inter layer prediction for scalable video coding (SVC) may be implemented using enhanced deblocking filters. Enhanced deblocking filters may be configured to be adapted, for example by adjusting a deblocking filter boundary strength calculation process. A deblocking filter boundary strength parameter may be assigned in accordance with, for example, a video block partition size of an input video block or a neighboring video block, whether an input video block or a neighboring video block was predicted using an inter layer reference, and/or whether at least one of an input video block or a neighboring video block have one or more corresponding base layer blocks that were coded using intra mode.
摘要翻译：可以增强在视频编码系统（例如，单层视频编码系统或多层视频编码系统）中使用的去块滤波器。用于可缩放视频编码（SVC）的层间预测可以使用增强的去块滤波器来实现。增强型去块滤波器可以被配置为适配，例如通过调整去块滤波器边界强度计算过程。可以根据例如输入视频块或相邻视频块的视频块分区大小来分配去块滤波器边界强度参数，无论使用层间参考来预测输入视频块还是相邻视频块，和/或输入视频块或相邻视频块中的至少一个是否具有使用帧内模式编码的一个或多个对应的基本层块。

26. 发明申请

US20150358635A1 MOTION INFORMATION SIGNALING FOR SCALABLE VIDEO CODING 审中-公开
标题翻译：运动信息信号可扩展视频编码
公开(公告)号：US20150358635A1
公开(公告)日：2015-12-10
申请号：US14759428
申请日：2014-01-07
申请人： Vid Scale, Inc.
发明人： Xiaoyu Xiu , Yong He , Yuwen He , Yan Ye
IPC分类号： H04N19/51 , H04N19/44 , H04N19/172
CPC分类号： H04N19/51 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/30 , H04N19/44 , H04N19/513
摘要： Systems, methods and instrumentalities are provided to implement motion information signaling for scalable video coding. A video coding device may generate a video bitstream comprising a plurality of base layer pictures and a plurality of corresponding enhancement layer pictures. The video coding device may identify a prediction unit (PU) of one of the enhancement layer pictures. The video coding device may determine whether the PU uses an inter-layer reference picture of the enhancement layer picture as a reference picture. The video coding device may set motion vector information associated with the inter-layer reference picture of enhancement layer to a value indicative of zero motion, e.g., if the PU uses the inter-layer reference layer picture as the reference picture.
摘要翻译：提供系统，方法和手段来实现用于可缩放视频编码的运动信息信令。视频编码装置可以生成包括多个基本层图像和多个对应的增强层图像的视频比特流。视频编码装置可以识别增强层图像之一的预测单元（PU）。视频编码装置可以确定PU是否使用增强层图像的层间参考图片作为参考图片。视频编码装置可以将与增强层的层间参考图像相关联的运动矢量信息设置为表示零运动的值，例如，如果PU使用层间参考层图像作为参考图像。

27. 发明公开

US20240244253A1 METHODS AND APPARATUS FOR REDUCING THE CODING LATENCY OF DECODER-SIDE MOTION REFINEMENT 审中-公开
公开(公告)号：US20240244253A1
公开(公告)日：2024-07-18
申请号：US18623846
申请日：2024-04-01
申请人： VID SCALE, INC.
发明人： Xiaoyu Xiu , Yuwen He , Yan Ye
IPC分类号： H04N19/513 , H04N19/176 , H04N19/577 , H04N19/86
CPC分类号： H04N19/521 , H04N19/176 , H04N19/577 , H04N19/86
摘要： Embodiments of video coding systems and methods are described for reducing coding latency introduced by decoder-side motion vector refinement (DMVR). In one example, two non-refined motion vectors are identified for coding of a first block of samples (e.g. a first coding unit) using bi-prediction. One or both of the non-refined motion vectors are used to predict motion information for a second block of samples (e.g. a second coding unit). The two non-refined motion vectors are refined using DMVR, and the refined motion vectors are used to generate a prediction signal of the first block of samples. Such embodiments allow the second block of samples to be coded substantially in parallel with the first block without waiting for completion of DMVR on the first block. In additional embodiments, optical-flow-based techniques are described for motion vector refinement.

28. 发明申请

US20230136599A1 ADAPTIVE MOTION VECTOR PRECISION FOR AFFINE MOTION MODEL BASED VIDEO CODING 有权
公开(公告)号：US20230136599A1
公开(公告)日：2023-05-04
申请号：US18089027
申请日：2022-12-27
申请人： Vid Scale, Inc.
发明人： Yuwen He , Xiaoyu Xiu , Yan Ye , Jiancong Luo
IPC分类号： H04N19/137 , H04N19/159 , H04N19/176 , H04N19/192
摘要： Systems and methods are described for video coding using affine motion models with adaptive precision. In an example, a block of video is encoded in a bitstream using an affine motion model, where the affine motion model is characterized by at least two motion vectors. A precision is selected for each of the motion vectors, and the selected precisions are signaled in the bitstream. In some embodiments, the precisions are signaled by including in the bitstream information that identifies one of a plurality of elements in a selected predetermined precision set. The identified element indicates the precision of each of the motion vectors that characterize the affine motion model. In some embodiments, the precision set to be used is signaled expressly in the bitstream; in other embodiments, the precision set may be inferred, e.g., from the block size, block shape or temporal layer.

29. 发明授权

US11470344B2 Frame-rate up conversion with low complexity 有权
公开(公告)号：US11470344B2
公开(公告)日：2022-10-11
申请号：US16965571
申请日：2019-01-28
申请人： Vid Scale, Inc.
发明人： Xiaoyu Xiu , Yuwen He , Yan Ye
IPC分类号： H04N19/56 , H04N19/176 , H04N19/57
摘要： Systems and methods are described for selecting a motion vector (MV) to use in frame-rate up conversion (FRUC) coding of a block of video. In one embodiment, a first set of motion vector candidates is identified for FRUC prediction of the block. A search center is defined based on the first set of motion vector candidates, and a search window is determined, the search window having a selected width and being centered on the search center. A search for a selected MV is performed within the search window. In some embodiments, an initial set of MVs is processed with a clustering algorithm to generate a smaller number of MVs that are used as the first set. The selected MV may be subject to a motion refinement search, which may also be performed over a constrained search range. In additional embodiments, search iterations are constrained to limit complexity.

30. 发明授权

US11363253B2 Systems and methods for generalized multi-hypothesis prediction for video coding 有权
公开(公告)号：US11363253B2
公开(公告)日：2022-06-14
申请号：US16099392
申请日：2017-05-11
申请人： VID SCALE, INC
发明人： Chun-Chi Chen , Xiaoyu Xiu , Yuwen He , Yan Ye
IPC分类号： H04N19/105 , H04N19/139 , H04N19/176 , H04N19/463 , H04N19/96 , H04N19/577 , H04N19/70 , H04N19/573
摘要： Systems and methods are described for video coding using generalized bi-prediction. In an exemplary embodiment, to code a current block of a video in a bitstream, a first reference block is selected from a first reference picture and a second reference block is selected from a second reference picture. Each reference block is associated with a weight, where the weight may be an arbitrary weight ranging, e.g., between 0 and 1. The current block is predicted using a weighted sum of the reference blocks. The weights may be selected from among a plurality of candidate weights. Candidate weights may be signaled in the bitstream or may be derived implicitly based on a template. Candidate weights may be pruned to avoid out-of-range or substantially duplicate candidate weights. Generalized bi-prediction may additionally be used in frame rate up conversion.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式