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1.发明公开公开(公告)号：US20240364861A1
公开(公告)日：2024-10-31
申请号：US18766977
申请日：2024-07-09
发明人： Yago SÁNCHEZ DE LA FUENTE , Karsten SÜHRING , Cornelius HELLGE , Thomas SCHIERL , Robert SKUPIN , Thomas WIEGAND
IPC分类号： H04N19/103 , H04N19/159 , H04N19/30 , H04N19/503 , H04N19/70
CPC分类号： H04N19/103 , H04N19/159 , H04N19/30 , H04N19/503 , H04N19/70
摘要： The present invention is concerned with methods, encoders, decoders and data streams for coding pictures, and in particular a consecutive sequence of pictures. Some embodiments may exploit the so-called Gradual Decoder Refresh—GDR—coding scheme for coding the pictures. Some embodiments may suggest Scalable Coding and Gradual Decoder Refresh improvements.
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公开(公告)号：US20240357131A1
公开(公告)日：2024-10-24
申请号：US18757156
申请日：2024-06-27
发明人： Kai Zhang , Jianle Chen , Li Zhang , Xiang Li , Marta Karczewicz
IPC分类号： H04N19/159 , H04N19/107 , H04N19/11 , H04N19/124 , H04N19/139 , H04N19/176 , H04N19/182 , H04N19/44 , H04N19/463 , H04N19/503 , H04N19/513 , H04N19/593 , H04N19/186
CPC分类号： H04N19/159 , H04N19/107 , H04N19/11 , H04N19/124 , H04N19/139 , H04N19/176 , H04N19/182 , H04N19/44 , H04N19/463 , H04N19/503 , H04N19/513 , H04N19/593 , H04N19/186
摘要： Techniques are described for using an inter-intra-prediction block. A video coder may generate a first prediction block according to an intra-prediction mode and generate a second prediction block according to an inter-prediction mode. The video coder may weighted combine, such as based on the intra-prediction mode, the two prediction blocks to generate an inter-intra-prediction block (e.g., final prediction block). In some examples, an inter-intra candidate is identified in a list of candidate motion vector predictors, and an inter-intra-prediction block is used based on identification of the inter-intra candidate in the list of candidate motion vector predictors.
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公开(公告)号：US12126818B2
公开(公告)日：2024-10-22
申请号：US18367137
申请日：2023-09-12
发明人： Joo Hee Moon , Sung Won Lim , Dong Jae Won
IPC分类号： H04N19/176 , H04N19/105 , H04N19/132 , H04N19/136 , H04N19/167 , H04N19/196 , H04N19/50 , H04N19/503
CPC分类号： H04N19/176 , H04N19/105 , H04N19/132 , H04N19/136 , H04N19/167 , H04N19/196 , H04N19/50 , H04N19/503
摘要： A method for decoding an image signal according to the present invention may comprise the steps of: determining whether there is a brightness change between a current image including a current block and a reference image of the current image; if it is determined that there is a brightness change between the current image and the reference image, determining weight prediction parameter candidates for the current block; determining a weight prediction parameter for the current block on the basis of index information which specifies any one of the weight prediction parameter candidates; and performing a prediction on the current block on the basis of the weight prediction parameter.
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4.发明公开公开(公告)号：US20240348817A1
公开(公告)日：2024-10-17
申请号：US18360868
申请日：2023-07-28
发明人： Xinfeng ZHANG , Lv TANG
IPC分类号： H04N19/503 , H04N19/107 , H04N19/119 , H04N19/136 , H04N19/154 , H04N19/172 , H04N19/593
CPC分类号： H04N19/503 , H04N19/107 , H04N19/119 , H04N19/136 , H04N19/154 , H04N19/172 , H04N19/593
摘要： A method, apparatus, electronic device, and computer-readable storage medium for video processing. The video processing method comprises encoding an original video sequence into network model parameters of an implicit neural network model, and iteratively optimizing the network model parameters based on the original video sequence until a predetermined requirement is met. The video processing improves rate-distortion performance, optimizes storage space and transmission bandwidth, overcomes the limitations of existing methods that can only utilize adjacent frames or limited frame information to remove inter-frame redundancy, breaks through the bottleneck of existing video compression algorithms, enhances video compression efficiency, and reduces bit rate.
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公开(公告)号：US20240348769A1
公开(公告)日：2024-10-17
申请号：US18612724
申请日：2024-03-21
IPC分类号： H04N19/105 , H04N19/503 , H04N19/51 , H04N19/597 , H04N19/70
CPC分类号： H04N19/105 , H04N19/503 , H04N19/51 , H04N19/597 , H04N19/70
摘要： Techniques and devices are described for processing point cloud data. An example device includes one or more memories and one or more processors. The one or more processors are configured to process a syntax element indicative of whether a previous previous frame can be used for inter prediction for one or more points of point cloud data. The previous previous frame includes a reference frame of a previous reference frame. The one or more processors are configured to code the one or more points based on a determination of whether the previous previous frame can be used for inter prediction for the one or more points.
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公开(公告)号：US20240323363A1
公开(公告)日：2024-09-26
申请号：US18734880
申请日：2024-06-05
申请人： Electronics and Telecommunications Research Institute , RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
发明人： Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Jin Ho LEE , Byeung Woo JEON , Jee Yoon PARK
IPC分类号： H04N19/107 , H04N19/132 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/503 , H04N19/593
CPC分类号： H04N19/107 , H04N19/132 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/503 , H04N19/593
摘要： Disclosed herein is an image encoding/decoding method and apparatus. The image decoding method includes deriving an intra prediction value by performing intra prediction with respect to a current block, deriving an inter prediction value by performing inter prediction with respect to the current block, deriving a combined inter intra prediction (CIIP) value by weighting the intra prediction value and the inter prediction value, and generating a reconstructed block of the current block using the CIIP value. The intra prediction is performed in a Planar mode.
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公开(公告)号：US12088793B2
公开(公告)日：2024-09-10
申请号：US18051397
申请日：2022-10-31
申请人： TENCENT AMERICA LLC
发明人： Liang Zhao , Han Gao , Xin Zhao , Shan Liu
IPC分类号： H04N19/503 , H04N19/105 , H04N19/159 , H04N19/176
CPC分类号： H04N19/105 , H04N19/159 , H04N19/176
摘要： This disclosure relates generally to video coding and particularly to methods and systems for determination of temporal motion vector predictor (TMVP) candidates for inter-prediction in video coding. The disclosed methods, for example, include restricting the number of TMVP candidates in a motion vector predictor (MVP) list and provide various search mechanism in order to promote MVP candidate diversity among TMVP and other types of MVP candidates and to improve coding efficiency.
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8.发明授权公开(公告)号：US12069300B2
公开(公告)日：2024-08-20
申请号：US18468512
申请日：2023-09-15
申请人： Electronics and Telecommunications Research Institute , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , CHIPS&MEDIA, INC , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
发明人： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Hui Yong Kim , Yung Lyul Lee , Ji Yeon Jung , Nam Uk Kim , Myung Jun Kim , Yang Woo Kim , Dae Yeon Kim , Jae Gon Kim
IPC分类号： H04N7/12 , G06T9/00 , H04N19/107 , H04N19/127 , H04N19/159 , H04N19/176 , H04N19/189 , H04N19/196 , H04N19/503 , H04N19/593 , H04N19/132
CPC分类号： H04N19/593 , G06T9/004 , H04N19/107 , H04N19/127 , H04N19/159 , H04N19/176 , H04N19/189 , H04N19/196 , H04N19/503 , H04N19/132
摘要： Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.
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公开(公告)号：US12069288B2
公开(公告)日：2024-08-20
申请号：US17473517
申请日：2021-09-13
发明人： Huanbang Chen , Xiang Ma , Haitao Yang , Lian Zhang
IPC分类号： H04N19/103 , H04N19/105 , H04N19/176 , H04N19/182 , H04N19/503 , H04N19/513 , H04N19/54 , H04N19/61 , H04N19/70
CPC分类号： H04N19/513 , H04N19/176 , H04N19/182
摘要： Disclosed are an inter prediction method based on an affine prediction mode and a related apparatus. The method includes: obtaining a predicted pixel value of a current affine block; obtaining an LIC flag of the current affine block, where the LIC flag is used to indicate whether local illumination compensation LIC is applied to the current affine block; and when the LIC flag indicates that LIC is applied to the current affine block, updating the predicted pixel value of the current affine block based on an update coefficient for LIC, to obtain an updated predicted pixel value of the current affine block.
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公开(公告)号：US12069278B2
公开(公告)日：2024-08-20
申请号：US18181151
申请日：2023-03-09
发明人： Jizheng Xu , Zhipin Deng , Li Zhang , Hongbin Liu , Kai Zhang
IPC分类号： H04N19/157 , H04N9/64 , H04N19/109 , H04N19/119 , H04N19/159 , H04N19/169 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/503
CPC分类号： H04N19/157 , H04N9/64 , H04N19/109 , H04N19/119 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/46 , H04N19/503
摘要： A method of video processing is described. The method includes determining, for a conversion between a current video block of a video and a coded representation of the video, whether a certain partitioning scheme is allowed for the current video block according to a rule that depends on a coding mode type used for representing the current video block in the coded representation and a dimension of the current video block; and performing the conversion based on the determining.
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