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公开(公告)号：US20240388733A1
公开(公告)日：2024-11-21
申请号：US18755703
申请日：2024-06-27
Applicant: HFI Innovation Inc.
Inventor： Tzu-Der Chuang , Ching-Yeh Chen
IPC: H04N19/577 , H04N19/517 , H04N19/527 , H04N19/96
Abstract: Methods, apparatus, and computer readable media configured to determine motion vectors for encoders and decoders are disclosed. A decoder receives compressed video data related to a set of frames. The decoder calculates, using a decoder-side predictor refinement technique, a new motion vector for a current frame from the set of frames, wherein the new motion vector estimates motion for the current frame based on one or more reference frames. The calculation includes retrieving a first motion vector associated with the current frame, executing a first portion of the decoding process using the first motion vector, retrieving a second motion vector associated with the current frame that is different than the first motion vector, and executing a second portion of the decoding process using the second motion vector.
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公开(公告)号：US20240357159A1
公开(公告)日：2024-10-24
申请号：US18644397
申请日：2024-04-24
Applicant: Intel Corporation
Inventor： Yunbiao Lin , Changliang Wang , Ce Wang , Yongfa Zhou , Bo Zhao , Ping Liu , Jianwei Yang , Zhan Lou , Yu Yang , Yating Wang , Wenyi Tang , Bo Qiu
IPC: H04N19/527 , H04N19/154 , H04N19/167 , H04N19/176 , H04N19/189 , H04N19/52 , H04N21/6587 , H04N13/161
CPC classification number: H04N19/527 , H04N19/154 , H04N19/167 , H04N19/176 , H04N19/189 , H04N19/52 , H04N21/6587 , H04N13/161
Abstract: An embodiment of an adaptive video encoder may determine headset-related information including at least one of focus-related information and motion-related information and determine one or more video encode parameters based on the headset-related information. The adaptive video encoder may also encode a macroblock of a video image based on the one or more determined video encode parameters. Other embodiments are disclosed and claimed.
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公开(公告)号：US12063387B2
公开(公告)日：2024-08-13
申请号：US15861476
申请日：2018-01-03
Applicant: MediaTek Inc.
Inventor： Tzu-Der Chuang , Ching-Yeh Chen
IPC: H04N19/577 , H04N19/517 , H04N19/527 , H04N19/96
CPC classification number: H04N19/577 , H04N19/517 , H04N19/527 , H04N19/96
Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to determine motion vectors. The techniques relate to both encoders and decoders. For example, a decoder receives compressed video data related to a set of frames. The decoder calculates, using a decoder-side predictor refinement technique, a new motion vector for a current frame from the set of frames, wherein the new motion vector estimates motion for the current frame based on one or more reference frames. The calculation includes retrieving a first motion vector associated with the current frame, executing a first portion of the decoding process using the first motion vector, retrieving a second motion vector associated with the current frame that is different than the first motion vector, and executing a second portion of the decoding process using the second motion vector.
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公开(公告)号：US20240259590A1
公开(公告)日：2024-08-01
申请号：US18631007
申请日：2024-04-09
Inventor： Xiaoyu XIU , Yi-Wen CHEN , Xianglin WANG
IPC: H04N19/527 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
CPC classification number: H04N19/527 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: A method for video coding is provided. The method includes: determining that a combined inter and intra prediction mode is applied to a current coding block; generating an inter prediction of the current coding block based on an inter prediction mode; generating an intra prediction of the current coding block based on an intra prediction mode; generating a final prediction of the current coding block based on the inter prediction and the intra prediction; and determining that a prediction mode of the current coding block is treated as one unified mode when constructing a most probable mode (MPM) list of a neighboring coding block, the unified mode being predefined as an inter mode, or being predefined as an intra mode.
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公开(公告)号：US11985347B2
公开(公告)日：2024-05-14
申请号：US17746836
申请日：2022-05-17
Inventor： Xiaoyu Xiu , Yi-Wen Chen , Xianglin Wang
IPC: H04N19/527 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
CPC classification number: H04N19/527 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: A method for video encoding is provided. The method includes: generating an inter prediction of a current coding block based on at least one motion vector from a current picture to at least one reference picture respectively; generating an intra prediction of the current coding block based on an intra prediction mode; generating a final prediction of the current coding block by weighted averaging the inter prediction and the intra prediction; determining the current coding block is treated as inter mode upon constructing a most probable mode (MPM) list of a neighboring coding block, or determining the current coding block is treated as intra mode upon constructing an MPM list of a neighboring coding block; and putting entropy-encoded information indicating that the current coding block is treated as inter mode or intra mode in a bitstream to be transmitted to a decoder.
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6.发明公开
公开(公告)号：US20240121429A1
公开(公告)日：2024-04-11
申请号：US18544808
申请日：2023-12-19
Applicant: Sun Patent Trust
Inventor： Viktor WAHADANIAH , Chong Soon LIM , Sue Mon Thet NAING , Hai Wei SUN , Takahiro NISHI , Hisao SASAI , Youji SHIBAHARA , Kyoko TANIKAWA , Toshiyasu SUGIO , Kengo TERADA , Toru MATSUNOBU
IPC: H04N19/527 , H04N19/513 , H04N19/52 , H04N19/58
CPC classification number: H04N19/527 , H04N19/513 , H04N19/52 , H04N19/58
Abstract: An image coding method includes: deriving a candidate for a motion vector of a current block from a co-located motion vector; adding the candidate to a list; selecting the motion vector of the current block from the list; and coding the current block, wherein the deriving includes: deriving the candidate by a first derivation scheme in the case of determining that each of a current reference picture and a co-located reference picture is a long-term reference picture; and deriving the candidate by a second derivation scheme in the case of determining that each of the current reference picture and the co-located reference picture is a short-term reference picture.
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公开(公告)号：US11870974B2
公开(公告)日：2024-01-09
申请号：US17193425
申请日：2021-03-05
Inventor： Kai Zhang , Li Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/00 , H04N19/105 , H04N19/137 , H04N19/176 , H04N19/30 , H04N19/513 , H04N19/527
CPC classification number: H04N19/105 , H04N19/137 , H04N19/176 , H04N19/30 , H04N19/521 , H04N19/527
Abstract: A method, a video processing apparatus and computer-readable program medium for video process is disclosed. The method of video processing includes deriving, during a conversion between a current block of video and a bitstream representation of the current block, a new affine model using multiple original affine models with control point motion vectors; and performing the conversion by using the new affine model.
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公开(公告)号：US11812066B2
公开(公告)日：2023-11-07
申请号：US16338475
申请日：2017-09-21
Applicant: INTERDIGITAL VC HOLDINGS, INC.
Inventor： Philippe Bordes , Gagan Rath , Fabien Racape , Franck Galpin
IPC: H04N19/85 , H04N19/176 , H04N19/527 , H04N19/61
CPC classification number: H04N19/85 , H04N19/176 , H04N19/527 , H04N19/61
Abstract: The present disclosure relates to methods, apparatus or systems for encoding and decoding sequence of images by applying a global rotation motion compensation to an input image. According to different embodiments, the input image is a reference image in a compression loop or the image to be encoded. The images to encode are omnidirectional images. As a result, applying a global rotation motion compensation to them corresponds to generate new images as if they have been captured according to a different front direction. When this new front direction is the one of a reference image, the compensation of apparent motion is facilitated.
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公开(公告)号：US11785252B2
公开(公告)日：2023-10-10
申请号：US17504811
申请日：2021-10-19
Applicant: OP Solutions, LLC
Inventor： Hari Kalva , Borivoje Furht , Velibor Adzic
IPC: H04N19/176 , H04N19/172 , H04N19/527 , H04N19/137 , H04N19/513 , H04N19/70
CPC classification number: H04N19/527 , H04N19/137 , H04N19/172 , H04N19/176 , H04N19/513 , H04N19/70
Abstract: A decoder includes circuitry configured to receive a bitstream, extract a header associated with a current frame and including a signal characterizing that global motion is enabled and further characterizing parameters of a global motion model, and decoding the current frame, the decoding including using a motion model for each current block having a complexity that is less than or equal to a complexity of the global motion model. Related apparatus, systems, techniques, and articles are also described.
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公开(公告)号：US11638031B2
公开(公告)日：2023-04-25
申请号：US17304920
申请日：2021-06-28
Applicant: AMLOGIC (SHANGHAI) CO., LTD
Inventor： Tao Ji , Zhihong He , Chun Wang , Dongjian Wang , Xuyun Chen
IPC: H04N19/55 , H04N19/139 , H04N19/176 , H04N19/543 , H04N19/513 , H04N19/527 , H04N19/533 , H04N5/14 , H04N5/21 , H04N19/23 , H04N19/52 , H04N19/517
Abstract: The present disclosure relates to a motion compensation method and module, a chip, an electronic device, and a storage medium, to improve the problem of haloes easily appearing on the edges of moving objects.
