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1. 发明授权

EP2850830B1 ENCODING AND RECONSTRUCTION OF RESIDUAL DATA BASED ON SUPPORT INFORMATION 有权转让
公开(公告)号：EP2850830B1
公开(公告)日：2023-08-30
申请号：EP13722426.7
申请日：2013-05-13
发明人： ROSSATO, Luca , MEARDI, Guido
IPC分类号： H04N19/63 , H04N19/126 , H04N19/62 , H04N19/23 , H04N19/33 , H04N19/87 , H04N19/94 , H04N19/59

2. 发明公开

EP4097974A1 METHOD AND APPARATUS FOR CONSTRUCTING A 3D GEOMETRY 审中-实审
公开(公告)号：EP4097974A1
公开(公告)日：2022-12-07
申请号：EP21927034.5
申请日：2021-10-18
申请人： Tencent America LLC
发明人： ZHANG, Xiang , GAO, Wen , LIU, Shan
IPC分类号： H04N19/62 , G06T9/00

3. 发明授权

EP1617677B1 Embedded base layer codec for 3D sub-band coding 有权
标题翻译： Eingebettet Basisschichtcodiererfür3D Subbandcodierung
公开(公告)号：EP1617677B1
公开(公告)日：2017-02-08
申请号：EP05106324.6
申请日：2005-07-11
申请人： Microsoft Technology Licensing, LLC
发明人： Wu, Feng , Xu, Jizheng , Ji, Xiangyang
IPC分类号： H04N19/63 , H04N19/61 , H04N19/62 , H04N19/615
CPC分类号： H04N19/61 , H04N19/13 , H04N19/615 , H04N19/619 , H04N19/62 , H04N19/63

4. 发明公开

EP4199520A1 POINT CLOUD ATTRIBUTE ENCODING AND DECODING METHOD AND DEVICE 审中-实审
公开(公告)号：EP4199520A1
公开(公告)日：2023-06-21
申请号：EP21857586.8
申请日：2021-08-13
申请人： Zhejiang University
发明人： YU, Lu , CHEN, Jiafeng , WANG, Wenyi
IPC分类号： H04N19/62
摘要： Provided are a novel processing order-based point cloud attribute encoding and decoding method and device, addressing the problem of periodic discontinuity of three-dimensional spatial distances between adjacent points in the Morton order, so as to further improve encoding efficiency of point cloud attributes. The Hilbert order is used as an encoding order of point cloud attributes. In the Hilbert order, several points preceding a current point are searched so as to find nearest neighbor points of the current point in a three-dimensional space, and the nearest neighbor points are used as prediction points of the current point. Since near points in the Hilbert order are also near in the three-dimensional space, even in the worst case, two points having a distance of n in the Hilbert order have a distance of less than or equal to n 1/2 in the three-dimensional space. However, a distance of two points having a distance of n in the Morton order could have a distance that is greater than a maximum length of a point cloud dimension in the three-dimensional space. In addition, for a small K, the average distance from the current point for K points that precede the current point is less when using the Hilbert order than when using the Morton order . Therefore, the Hilbert order can be used to increase the probability of finding nearest neighbor points of the current point in the three-dimensional space, such that attribute values of the prediction points are closely related to an attribute value of the current point, thereby improving encoding efficiency of point cloud attributes.

5. 发明公开

EP2866443A4 ARITHMETIC DECODING DEVICE, ARITHMETIC CODING DEVICE, IMAGE DECODING DEVICE AND IMAGE CODING DEVICE 审中-公开
标题翻译： ARITHMETISCHE DECODIERUNGSVORRICHTUNG，ARITHMETISCHE CODIERUNGSVORRICHTUNG，BILDDECODIERUNGSVORRICHTUNG UND BILDCODIERUNGSVORRICHTUNG
公开(公告)号：EP2866443A4
公开(公告)日：2016-06-15
申请号：EP13807680
申请日：2013-06-04
申请人： SHARP KK
发明人： TSUKUBA TAKESHI , IKAI TOMOHIRO , YAMAMOTO TOMOYUKI
IPC分类号： H04N19/196 , H04N19/13 , H04N19/134 , H04N19/157 , H04N19/176 , H04N19/463 , H04N19/62 , H04N19/70 , H04N19/91
CPC分类号： H04N19/124 , H04N19/102 , H04N19/122 , H04N19/129 , H04N19/13 , H04N19/134 , H04N19/157 , H04N19/176 , H04N19/182 , H04N19/196 , H04N19/44 , H04N19/46 , H04N19/463 , H04N19/60 , H04N19/62 , H04N19/64 , H04N19/70 , H04N19/90 , H04N19/91
摘要： A coefficient presence/absence flag decoding unit (124), included in a quantized residual information decoding unit (111) which reduces a processing amount related to coding and decoding of a transform coefficient, splits a target frequency domain or a target pixel domain into sub-blocks, and derives different context indexes with respect to each transform coefficient in a pixel domain, obtained through a transform skip or a transform/quantization bypass, and each transform coefficient which is obtained for each frequency component through frequency transform.
摘要翻译：包括在减少与变换系数的编码和解码相关的处理量的量化残差信息解码单元（111）中的系数存在/不存在标志解码单元（124）将目标频域或目标像素域分成子并且通过变换跳变或变换/量化旁路获得的像素域中的每个变换系数以及通过频率变换为每个频率分量获得的每个变换系数导出不同的上下文索引。

6. 发明授权

EP2850832B1 DECODING AND RECONSTRUCTION OF TIME-BASED AND/OR MULTIDIMENSIONAL SIGNALS IN A TIERED TEMPORAL HIERARCHY 有权转让
公开(公告)号：EP2850832B1
公开(公告)日：2022-01-05
申请号：EP13724216.0
申请日：2013-05-14
发明人： ROSSATO, Luca , MEARDI, Guido
IPC分类号： H04N19/63 , H04N19/126 , H04N19/62 , H04N19/23 , H04N19/33 , H04N19/87 , H04N19/94 , H04N19/59

7. 发明授权

EP2426644B1 Image processing apparatus and image processing method 有权
公开(公告)号：EP2426644B1
公开(公告)日：2016-10-12
申请号：EP11178627.3
申请日：2011-08-24
申请人： Sony Corporation
发明人： Uemori, Takeshi , Nakagami, Ohji , Yamane, Masahito , Yagasaki, Yoichi
IPC分类号： G06T11/00 , H04N19/124 , H04N19/132 , H04N19/134 , H04N19/137 , H04N19/164 , H04N19/172 , H04N19/176 , H04N19/33 , H04N19/40 , H04N19/46 , H04N19/62 , H04N19/625
CPC分类号： H04N19/00236 , H04N19/124 , H04N19/132 , H04N19/134 , H04N19/137 , H04N19/164 , H04N19/172 , H04N19/176 , H04N19/33 , H04N19/40 , H04N19/46 , H04N19/62 , H04N19/625

8. 发明授权

EP2850835B1 ESTIMATION, ENCODING AND DECODING OF MOTION INFORMATION IN MULTIDIMENSIONAL SIGNALS THROUGH MOTION ZONES, AND OF AUXILIARY INFORMATION THROUGH AUXILIARY ZONES 有权转让
公开(公告)号：EP2850835B1
公开(公告)日：2022-01-05
申请号：EP13722432.5
申请日：2013-05-14
发明人： ROSSATO, Luca , MEARDI, Guido
IPC分类号： H04N19/63 , H04N19/126 , H04N19/62 , H04N19/23 , H04N19/33 , H04N19/87 , H04N19/94 , H04N19/59

9. 发明公开

EP3407602A1 METHOD AND APPARATUS FOR ENCODING SPACE-TIME SIGNALS 有权转让
公开(公告)号：EP3407602A1
公开(公告)日：2018-11-28
申请号：EP17741117.0
申请日：2017-01-22
申请人： Peking University
发明人： HUANG, Tiejun
IPC分类号： H04N19/107 , H04N19/503 , H04N19/593 , H04N19/31 , H04N19/62 , G06N3/04 , G06K9/46 , G06T9/00
CPC分类号： H04N19/85 , G06K9/4619 , G06N3/049 , G06T9/002 , H04L1/0625 , H04L1/0675 , H04N19/15 , H04N19/159 , H04N19/503 , H04N19/593 , H04N19/62
摘要： The embodiments of the present invention provide a method and device for encoding space-time signals. The method comprises: collecting space-time signals of various local spatial positions in a monitoring area, and accumulating the space-time signals according to time, so as to obtain cumulative signal intensity values; transforming the cumulative signal intensity values by means of a filter, and outputting a pulse signal when a transformation result exceeds a specific threshold; arranging pulse signals corresponding to a local spatial position into a sequence according to the time, so as to obtain a pulse sequence expressing the local spatial position signals and a change process thereof; and arranging the pulse sequences of all local spatial positions into a pulse sequence array according to interrelation among the spatial positions to serve as an encoding for dynamic space-time signals of the monitoring area. In the embodiments of the present invention, time-domain information and space-domain information are fully reserved by means of firstly performing pulse-type encoding in time domain, and then performing space-domain encoding according to the spatial position, so that a static image at any time can be reconstructed, and a fine movement process in a high speed movement scene is also reserved.

10. 发明公开

EP4068783A1 IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM 审中-实审
公开(公告)号：EP4068783A1
公开(公告)日：2022-10-05
申请号：EP20893847.2
申请日：2020-11-26
申请人： Electronics and Telecommunications Research Institute
发明人： LIM, Sung Chang , KANG, Jung Won , KIM, Soo Woong , BANG, Gun , LEE, Jin Ho , LEE, Ha Hyun
IPC分类号： H04N19/62 , H04N19/136 , H04N19/103 , H04N19/119 , H04N19/132 , H04N19/61 , H04N19/109 , H04N19/176
摘要： Disclosed herein is a video decoding method including: obtaining a transform skip mode flag indicating whether transform/inverse transform is skipped in a current block; when transform/inverse transform is skipped in the current block according to the transform skip mode flag, determining that secondary transform/inverse transform is skipped in the current block; and when transform/inverse transform is not skipped in the current block according to the transform skip mode flag, obtaining a transform matrix index for secondary transform/inverse transform of the current block and, determining whether secondary transform/inverse transform is skipped in the current block based on the transform matrix index.

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