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51. 发明申请

US20160094853A1 SINGLE LOOP DECODING BASED INTER LAYER PREDICTION 审中-公开
标题翻译：单循环解码基于层间预测
公开(公告)号：US20160094853A1
公开(公告)日：2016-03-31
申请号：US14891100
申请日：2014-05-15
申请人： VID SCALE, INC.
发明人： Yan Ye , Xiaoyu Xiu , Yong He , Yuwen He , Jie Dong , Eun Seok Ryu
IPC分类号： H04N19/33 , H04N19/34 , H04N19/61 , H04N19/59 , H04N19/44 , H04N19/593
CPC分类号： H04N19/33 , H04N19/34 , H04N19/44 , H04N19/59 , H04N19/593 , H04N19/61
摘要： Methods, systems, and instrumentalities are described to implement single loop decoding, A video decoding device (VDD) may receive a video bitstream, which may include one or more bitstreams (e.g., base layer bitstream, enhanced layer bitstream, etc.) The VDD may generate a hybrid inter-layer reference (H-ILR) picture. The H-ILR picture may be generated based on one or more inputs including, for example, a first layer motion information, a processed (e.g., upsampled) first layer residue signal, a second layer texture information, etc. The first layer motion information may be derived from a compressed first layer motion field or an uncompressed first layer motion field. An H-ILR block of the H-ILR picture may be reconstructed by deriving motion information of the H-ILR block from one or more neighboring H-ILR blocks in the H-ILR picture, for example, when the neighboring blocks are inter-coded.
摘要翻译：描述了方法，系统和工具来实现单循环解码，视频解码设备（VDD）可以接收视频比特流，其可以包括一个或多个比特流（例如，基本层比特流，增强层比特流等）。可以产生混合层间参考（H-ILR）图像。可以基于包括例如第一层运动信息，经处理（例如，上采样）第一层残差信号，第二层纹理信息等的一个或多个输入来生成H-ILR图像。第一层运动信息可以从压缩的第一层运动场或未压缩的第一层运动场导出。 H-ILR图像的H-ILR块可以通过从H-ILR图像中的一个或多个相邻H-ILR块导出H-ILR块的运动信息来重构，例如，当相邻块是inter- 编码。

52. 发明申请

US20160050430A1 ENHANCED TEMPORAL MOTION VECTOR PREDICTION FOR SCALABLE VIDEO CODING 审中-公开
标题翻译：用于可扩展视频编码的增强时运动矢量预测
公开(公告)号：US20160050430A1
公开(公告)日：2016-02-18
申请号：US14781728
申请日：2014-04-02
申请人： VID SCALE, INC.
发明人： Xiaoyu Xiu , Yuwen He , Yan Ye , Yong He
IPC分类号： H04N19/513 , H04N19/172 , H04N19/52 , H04N19/31 , H04N19/33
CPC分类号： H04N19/513 , H04N19/172 , H04N19/31 , H04N19/33 , H04N19/46 , H04N19/52 , H04N19/58 , H04N19/587 , H04N19/59
摘要： In enhancement layer (EL) coding, the temporal candidate(s) may be derived the merge mode and the non-merge mode. Selection of the reference index of a current prediction unit (PU) and of the reference list of a co-located PU may be considered jointly when constructing the temporal candidate of EL for the merge mode. The selection̂) may be made such that a motion vector (MV) scaling operation may be avoided. A selected motion vector prediction candidate may be added to a merging candidate list in a position before that of a spatial motion vector prediction candidate. A selected motion vector prediction candidate may be added to the merging candidate list in place of a spatial motion vector prediction candidate.
摘要翻译：在增强层（EL）编码中，时间候选可以被导出合并模式和非合并模式。当构建用于合并模式的EL的时间候选时，可以共同考虑当前预测单元（PU）的参考索引和同位置PU的参考列表的选择。可以进行选择）使得可以避免运动矢量（MV）缩放操作。选择的运动矢量预测候选可以在空间运动矢量预测候选者之前的位置添加到合并候选列表。可以将所选择的运动矢量预测候选替代空间运动矢量预测候选来添加到合并候选列表。

53. 发明申请

US20150373359A1 METHODS AND SYSTEMS FOR INTRA BLOCK COPY SEARCH ENHANCEMENT 审中-公开
标题翻译：内部块复制搜索增强的方法和系统
公开(公告)号：US20150373359A1
公开(公告)日：2015-12-24
申请号：US14743662
申请日：2015-06-18
申请人： Vid Scale, Inc.
发明人： Yuwen He , Xiaoyu Xiu , Yan Ye , Ralph Neff
IPC分类号： H04N19/513 , H04N19/186 , H04N19/105 , H04N19/176
CPC分类号： H04N19/513 , H04N19/105 , H04N19/147 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/593 , H04N19/70 , H04N19/90 , H04N19/94
摘要： In an intra-block copy video encoding method, an encoder performs a hash-based search to identify a selected set of candidate blocks for prediction of an input video block. For each of the candidate blocks in the selected set, the encoder determines a correlation between, on the one hand, luma and chroma components of the input video block and, on the other hand, luma and chroma components of the respective candidate blocks. A predictor block is selected based on the correlation and is used to encode the input video block. In different embodiments, the correlation may be the negative of the sum of absolute differences of the components, may include a Jaccard similarity measure between respective pixels, or may be based on a Hamming distance between two high precision hash values of the input video block and the candidate block.
摘要翻译：在块内复制视频编码方法中，编码器执行基于散列的搜索以识别用于预测输入视频块的所选候选块集合。对于所选集合中的每个候选块，编码器确定一方面输入视频块的亮度和色度分量之间的相关性，另一方面，确定各个候选块的亮度和色度分量之间的相关性。基于相关性来选择预测块，并用于对输入视频块进行编码。在不同的实施例中，相关性可以是分量的绝对差的和的负值，可以包括各个像素之间的雅可卡相似性度量，或者可以基于输入视频块的两个高精度散列值之间的汉明距离和候选块。

54. 发明申请

US20150264374A1 SYSTEMS AND METHODS FOR RGB VIDEO CODING ENHANCEMENT 审中-公开
标题翻译：用于RGB视频编码增强的系统和方法
公开(公告)号：US20150264374A1
公开(公告)日：2015-09-17
申请号：US14658179
申请日：2015-03-14
申请人： VID SCALE, INC.
发明人： Xiaoyu Xiu , Yuwen He , Chia-Ming Tsai , Yan Ye
IPC分类号： H04N19/44
CPC分类号： H04N19/44 , H04N19/12 , H04N19/174 , H04N19/176 , H04N19/46
摘要： Systems, methods, and devices are disclosed for performing adaptive residue color space conversion. A video bitstream may be received and a first flag may be determined based on the video bitstream. A residual may also be generated based on the video bitstream. The residual may be converted from a first color space to a second color space in response to the first flag.
摘要翻译：公开了用于执行自适应残差色彩空间转换的系统，方法和装置。可以接收视频比特流，并且可以基于视频比特流来确定第一标志。还可以基于视频比特流生成残差。响应于第一标志，残差可以从第一颜色空间转换为第二颜色空间。

55. 发明申请

US20150103886A1 HIGH LEVEL SYNTAX FOR HEVC EXTENSIONS 有权
标题翻译： HEVEL EXTENSIONS的高级语言
公开(公告)号：US20150103886A1
公开(公告)日：2015-04-16
申请号：US14512076
申请日：2014-10-10
申请人： Vid Scale, Inc.
发明人： Yong He , Yan Ye , Xiaoyu Xiu , Yuwen He
IPC分类号： H04N19/169 , H04N19/70 , H04N19/177
CPC分类号： H04N19/159 , H04N19/105 , H04N19/172 , H04N19/184 , H04N19/187 , H04N19/188 , H04N19/30 , H04N19/33 , H04N19/46 , H04N19/70
摘要： A video coding device may identify a network abstraction layer (NAL) unit. The video coding device may determine whether the NAL unit includes an active parameter set for a current layer. When the NAL unit includes the active parameter set for the current layer, the video coding device may set an NAL unit header layer identifier associated with the NAL unit to at least one of: zero, a value indicative of the current layer, or a value indicative of a reference layer of the current layer. The NAL unit may be a picture parameter set (PPS) NAL unit. The NAL unit may be a sequence parameter set (SPS) NAL unit.
摘要翻译：视频编码装置可以识别网络抽象层（NAL）单元。视频编码装置可以确定NAL单元是否包括针对当前层的活动参数集。当NAL单元包括针对当前层的活动参数集时，视频编码设备可以将与NAL单元相关联的NAL单元头层标识符设置为以下中的至少一个：零，表示当前层的值，指示当前层的参考层。 NAL单元可以是图像参数集（PPS）NAL单元。 NAL单元可以是序列参数集（SPS）NAL单元。

56. 发明申请

US20140072031A1 Reference Picture Lists Modification 有权
标题翻译：参考图片列表修改
公开(公告)号：US20140072031A1
公开(公告)日：2014-03-13
申请号：US14019871
申请日：2013-09-06
申请人： VID SCALE, INC.
发明人： Xiaoyu Xiu , Yong He , Yan Ye , Yuwen He
IPC分类号： H04N7/26
CPC分类号： H04N19/105 , H04N19/117 , H04N19/124 , H04N19/13 , H04N19/157 , H04N19/172 , H04N19/174 , H04N19/30 , H04N19/503 , H04N19/58 , H04N19/597 , H04N19/61 , H04N19/70
摘要： Systems, methods, and instrumentalities are disclosed relating to modifications to reference picture lists used for multiple layer video coding. A bitstream that may include a reference picture list of a slice may be received. An indication to reposition a reference picture within the reference picture list from a first position to a second position may be received. An indication to insert a reference picture within the reference picture list at a position may be received. The reference picture may be repositioned and/or inserted in the reference picture list in response to receiving the indication. A reference picture previously associated with the position may be shifted in the reference picture list according to the indication to reposition and/or insert the reference picture, although an indication to reposition the reference picture previously associated with the position may not be received. The slice may be decoded using the reference picture list.
摘要翻译：公开了与用于多层视频编码的参考图片列表的修改有关的系统，方法和工具。可以接收可以包括切片的参考图片列表的比特流。可以接收将参考图片列表中的参考图片从第一位置重新定位到第二位置的指示。可以接收在参考图片列表中的位置处插入参考图片的指示。响应于接收到指示，参考图片可以重新定位和/或插入到参考图片列表中。尽管可以不接收到先前与该位置相关联的参考图像的重新定位的指示，但是根据重新定位和/或插入参考图像的指示，可以在参考图像列表中先前与该位置相关联的参考图像被移位。可以使用参考图片列表来解码切片。

57. 发明授权

US12028520B2 Multi-type tree coding 有权
公开(公告)号：US12028520B2
公开(公告)日：2024-07-02
申请号：US16760938
申请日：2018-11-01
申请人： VID SCALE, INC.
发明人： Yuwen He , Fanyi Duanmu , Xiaoyu Xiu , Yan Ye
IPC分类号： H04N19/119 , H04N19/117 , H04N19/176 , H04N19/96
CPC分类号： H04N19/119 , H04N19/117 , H04N19/176 , H04N19/96
摘要： A block may be identified. The block may be partitioned into one or more (e.g., two) sibling nodes (e.g., sibling nodes BO and B1). A partition direction and a partition type for the block may be determined. If the partition type for the block is binary tree (BT), one or more (e.g., two) partition parameters may be determined for sibling node BO. A partition parameter (e.g., a first partition parameter) may be determined for sibling node B1. A decoder may determine whether to receive an indication of a second partition parameter for B1 based on, for example, the partition direction for the block, the partition type for the block, and the first partition parameter for B1. The decoder may derive the second partition parameter based on, for example, the partition direction and type for the block, and the first partition parameter for B1.

58. 发明公开

US20240196004A1 AFFINE MOTION ESTIMATION FOR AFFINE MODEL-BASED VIDEO CODING 审中-公开
公开(公告)号：US20240196004A1
公开(公告)日：2024-06-13
申请号：US18581994
申请日：2024-02-20
申请人： VID SCALE, INC.
发明人： Yuwen He , Xiaoyu Xiu , Yan Ye , Jiancong Luo
IPC分类号： H04N19/52 , H04N19/147 , H04N19/176
CPC分类号： H04N19/52 , H04N19/147 , H04N19/176
摘要： Systems, methods, and instrumentalities for affine motion estimation for affine model-based video coding may be disclosed herein. A first motion vector (MV) set including one or more MVs may be derived for a first coding block. The MVs may be control point MVs (CPMVs) and the MVs may be derived by performing affine motion estimation (ME) associated with the first coding block. The first MV set may be added to a recently-estimated MV list. A head of the recently-estimated MV list may be set to the first MV set. The recently-estimated MV list may be empty or may contain one or more previously-added MV sets.

59. 发明授权

US11973974B2 Methods and apparatus for reducing the coding latency of decoder-side motion refinement 有权
公开(公告)号：US11973974B2
公开(公告)日：2024-04-30
申请号：US18075169
申请日：2022-12-05
申请人： VID SCALE, INC.
发明人： Xiaoyu Xiu , Yuwen He , Yan Ye
IPC分类号： H04N19/176 , H04N19/513 , 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.

60. 发明授权

US11968358B2 Complexity reduction and bit-width control for bi-directional optical flow 有权
公开(公告)号：US11968358B2
公开(公告)日：2024-04-23
申请号：US17962928
申请日：2022-10-10
申请人： Vid Scale, Inc.
发明人： Xiaoyu Xiu , Yuwen He , Yan Ye , Jiancong Luo
IPC分类号： H04N7/12 , H04N19/105 , H04N19/132 , H04N19/146 , H04N19/159 , H04N19/176 , H04N19/513
CPC分类号： H04N19/105 , H04N19/132 , H04N19/146 , H04N19/159 , H04N19/176 , H04N19/513
摘要： Systems and methods are described for reducing the complexity of using bi-directional optical flow (BIO) in video coding. In some embodiments, bit-width reduction steps are introduced in the BIO motion refinement process to reduce the maximum bit-width used for BIO calculations. In some embodiments, simplified interpolation filters are used to generate predicted samples in an extended region around a current coding unit. In some embodiments, different interpolation filters are used for vertical versus horizontal interpolation. In some embodiments, BIO is disabled for coding units with small heights and/or for coding units that are predicted using a sub-block level inter prediction technique, such as advanced temporal motion vector prediction (ATMVP) or affine prediction.

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