-
公开(公告)号：US20250047905A1
公开(公告)日：2025-02-06
申请号：US18796109
申请日：2024-08-06
Applicant: LG ELECTRONICS INC.
Inventor： Hendry HENDRY
IPC: H04N19/65 , H04N19/172 , H04N19/46 , H04N19/70
Abstract: According to the disclosure of the present document, a recovery point picture order count (POC) for a gradual decoding refresh (GDR) picture is derived on the basis of GDR-related information, and an output for pictures related to the GDR picture is determined on the basis of the recovery point POC. The recovery point DOC can be derived on the basis of a syntax element related to the recovery point POC.
-
公开(公告)号：US20250047904A1
公开(公告)日：2025-02-06
申请号：US18778443
申请日：2024-07-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04N19/65 , H04N19/117 , H04N19/14 , H04N19/147 , H04N19/172 , H04N19/182 , H04N19/196 , H04N19/82
Abstract: A method and apparatus for adaptively processing video samples in a video signal frame, the video samples being arranged in a Largest Coding Unit. The method comprises extracting a plurality of video samples from the Largest Coding Unit, calculating a correction offset for a first video sample of the extracted plurality of video samples upon the basis of a first value of the first video sample and a second value of a second video sample of the extracted plurality of video samples, and weighting the first video sample with the correction offset.
-
公开(公告)号：US20250030855A1
公开(公告)日：2025-01-23
申请号：US18906618
申请日：2024-10-04
Inventor： Ryuichi KANOH , Tadamasa TOMA , Kiyofumi ABE , Takahiro NISHI
IPC: H04N19/12 , H04N19/119 , H04N19/14 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/65
Abstract: An encoder which codes a moving picture includes: a processor; and a memory, wherein the processor, using the memory: subtracts a prediction image of an image included in the moving picture from the image so as to derive a prediction error; sequentially selects a plurality of transform basis candidates; derives an evaluation value of a transform basis candidate selected; compares the evaluation value with a threshold value; based on a result of the comparison, skips selection of one or more transform basis candidates that have not been selected; determines the transform basis from one or more transform basis candidates selected; performs the transform of the prediction error, using the transform basis; quantizes a result of the transform; and codes a result of the quantization as data of the image.
-
公开(公告)号：US12177435B2
公开(公告)日：2024-12-24
申请号：US17781732
申请日：2020-12-18
Applicant: Sony Group Corporation
Inventor： Takeshi Tsukuba
IPC: H04N19/124 , H04N19/184 , H04N19/60 , H04N19/65
Abstract: The present disclosure relates to an image processing device and method for enabling control of a value of a quantization parameter within a desired range.
A quantization parameter is corrected on the basis of a parameter regarding adaptive color transform and further correcting the quantization parameter on the basis of a parameter regarding transform skip, and coefficient data of an image to be encoded is quantized using a corrected quantization parameter that is the quantization parameter that has been corrected. The present disclosure can be applied to, for example, an image processing device, an image encoding device, an image decoding device, a transmission device, a reception device, a transmission/reception device, an information processing device, an imaging device, a reproduction device, an electronic device, an image processing method, an information processing method, or the like.
-
公开(公告)号：US20240397099A1
公开(公告)日：2024-11-28
申请号：US18790812
申请日：2024-07-31
Applicant: Microsoft Technology Licensing, LLC
Inventor： Gary J. Sullivan , Sandeep Kanumuri
IPC: H04N19/65 , H04N19/15 , H04N19/172 , H04N19/184 , H04N19/573 , H04N19/70 , H04N19/88
Abstract: Disclosed herein are innovations for bitstreams having clean random access (CRA) pictures and/or other types of random access point (RAP) pictures. New type definitions and strategic constraints on types of RAP pictures can simplify mapping of units of elementary video stream data to a container format. Such innovations can help improve the ability for video coding systems to more flexibly perform adaptive video delivery, production editing, commercial insertion, and the like.
-
公开(公告)号：US20240397095A1
公开(公告)日：2024-11-28
申请号：US18790400
申请日：2024-07-31
Applicant: Microsoft Technology Licensing, LLC
Inventor： Gary J. Sullivan , Sandeep Kanumuri
IPC: H04N19/65 , H04N19/15 , H04N19/172 , H04N19/184 , H04N19/573 , H04N19/70 , H04N19/88
Abstract: Disclosed herein are innovations for bitstreams having clean random access (CRA) pictures and/or other types of random access point (RAP) pictures. New type definitions and strategic constraints on types of RAP pictures can simplify mapping of units of elementary video stream data to a container format. Such innovations can help improve the ability for video coding systems to more flexibly perform adaptive video delivery, production editing, commercial insertion, and the like.
-
7.发明授权
公开(公告)号：US12143584B2
公开(公告)日：2024-11-12
申请号：US17508289
申请日：2021-10-22
Inventor： Ryuichi Kanoh , Tadamasa Toma , Kiyofumi Abe , Takahiro Nishi
IPC: H04N19/12 , H04N19/14 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/65 , H04N19/119
Abstract: A decoder comprising a processor and a memory, wherein the processor, using the memory, inverse quantizes data corresponding to a current block of an image performs an inverse secondary transform, using one candidate of the inverse secondary transform selected from candidates of the inverse secondary transform, on a result of the inverse quantization to generate second transform coefficients, the candidates of the inverse secondary transform including transform bases for the inverse secondary transform and a skip of the inverse secondary transform and performs an inverse primary transform, using one candidate of the inverse primary transform selected from candidates of the inverse primary transform, on the second transform coefficients or the result of the inverse quantization to generate first transform coefficients, the candidates of the inverse primary transform including transform bases for the inverse primary transform.
-
公开(公告)号：US20240267564A1
公开(公告)日：2024-08-08
申请号：US18407126
申请日：2024-01-08
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Martin PETTERSSON , Rickard SJÖBERG , Mitra DAMGHANIAN
IPC: H04N19/65 , H04N19/169 , H04N19/172 , H04N19/70
CPC classification number: H04N19/65 , H04N19/172 , H04N19/188 , H04N19/70
Abstract: A method for decoding a video bitstream comprising a sequence of pictures comprising a picture A and a picture B, wherein picture A starts a recovery point period and picture B ends the recovery point period. The method includes obtaining the video bitstream and decoding from the video bitstream a normative indication of the recovery point period. The normative indication of the recovery point period indicates that picture A starts the recovery point period and/or that picture B ends the recovery point period.
-
公开(公告)号：US20240031599A1
公开(公告)日：2024-01-25
申请号：US18376921
申请日：2023-10-05
Applicant: Sun Patent Trust
Inventor： Viktor WAHADANIAH , Chong Soon LIM , Sue Mon Thet NAING , Takahiro NISHI , Youji SHIBAHARA , Hisao SASAI , Toshiyasu SUGIO
IPC: H04N19/573 , H04N19/70 , H04N19/65 , H04N19/31 , H04N19/593 , H04N19/159
CPC classification number: H04N19/573 , H04N19/70 , H04N19/65 , H04N19/31 , H04N19/593 , H04N19/159 , H04N19/61
Abstract: A video encoding method using a plurality of reference pictures includes: selecting whether or not a resilient picture referencing scheme is to be used for encoding video; writing a parameter indicating the selection into a header of an encoded video bitstream; and encoding a picture using inter-picture prediction using a result of the selection.
-
公开(公告)号：US20240007657A1
公开(公告)日：2024-01-04
申请号：US18190955
申请日：2023-03-27
Applicant: GE Video Compression, LLC
Inventor： Karsten Suehring , Thomas Schierl , Detlev Marpe , Robert Skupin , Yago Sanchez De La Fuente , Gerhard Tech
IPC: H04N19/30 , H04N19/65 , H04N19/70 , H04L69/324 , H04N19/187 , H04N19/423 , H04N19/44 , H04N19/50 , H04N19/85 , H04N19/119 , H04N19/166 , H04N19/174 , H04N19/593 , H04N19/66 , H04N19/89 , H04N19/91 , H04N19/33
CPC classification number: H04N19/30 , H04N19/33 , H04N19/70 , H04L69/324 , H04N19/187 , H04N19/423 , H04N19/44 , H04N19/50 , H04N19/85 , H04N19/119 , H04N19/166 , H04N19/174 , H04N19/593 , H04N19/66 , H04N19/89 , H04N19/91 , H04N19/65
Abstract: A signaling of at least one characteristic for layers of a multi-layered video signal such as, for example, for each layer the indication of dependent layers to which the respective layer directly relates via inter-layer prediction, or the signaling of the afore-mentioned second inter-dependency syntax structure, is described. A maximum syntax element is signaled within the multi-layered video signal to indicate a maximally used value of an extension layer-ID field of the packets of the multi-layered video signal, the scope of the maximum syntax element being, for example, a predetermined portion of the multi-layered video signal extending, for example, across several portions of the multi-layered video signal. Accordingly, it is feasible for devices such as decoders or network elements receiving the multi-layered video signal to gain, for a relatively large predetermined portion of the multi-layered video signal, knowledge about the actually consumed portion of the possible domain of possible values.
