-
公开(公告)号：US12192531B2
公开(公告)日：2025-01-07
申请号：US18479663
申请日：2023-10-02
Inventor： Jing Ya Li , Han Boon Teo , Chong Soon Lim , Hai Wei Sun , Che-Wei Kuo , Chu Tong Wang , Tadamasa Toma , Takahiro Nishi , Kiyofumi Abe , Yusuke Kato
IPC: H04N19/82 , H04N19/107 , H04N19/176 , H04N19/186
Abstract: A decoder includes memory and a processor coupled to the memory and configured to: generate a first coefficient value by applying a CCALF (cross component adaptive loop filtering) process to a first reconstructed image sample of a luma component; clip the first coefficient value such that the clipped first coefficient value is within a first range from −27 to 27−1; generate a second coefficient value by applying an ALF (adaptive loop filtering) process to a second reconstructed image sample of a chroma component; clip the second coefficient value such that the clipped second coefficient value is within a second range different from the first range; generate a third coefficient value by adding the clipped first coefficient value to the clipped second coefficient value; and generate a third reconstructed image sample of the chroma component using the third coefficient value.
-
公开(公告)号：US12184887B2
公开(公告)日：2024-12-31
申请号：US18473027
申请日：2023-09-22
Inventor： Jing Ya Li , Chong Soon Lim , Sughosh Pavan Shashidhar , Ru Ling Liao , Hai Wei Sun , Han Boon Teo , Kiyofumi Abe , Tadamasa Toma , Takahiro Nishi
IPC: H04N19/00 , H04N19/119 , H04N19/176 , H04N19/513 , H04N19/96
Abstract: An encoder includes circuitry and memory connected to the circuitry. In operation, the circuitry corrects a base motion vector using a correction value in a fixed direction; and encodes a current partition by using the corrected base motion vector corrected. The correction value is specified by an index indicating one of correction values included in a table. The table is selected from among a plurality of tables, wherein the correction values in one of the plurality of tables have different increments from the correction values in another one of the plurality of tables.
-
公开(公告)号：US12081752B2
公开(公告)日：2024-09-03
申请号：US17728286
申请日：2022-04-25
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Ryuichi Kanoh , Chong Soon Lim , Ru Ling Liao , Hai Wei Sun , Sughosh Pavan Shashidhar , Han Boon Teo , Jing Ya Li
IPC: H04N19/119 , H04N19/176
CPC classification number: H04N19/119 , H04N19/176
Abstract: Provided is an encoder which includes circuitry and memory. The circuitry encodes an image block using the memory. In encoding the image block, the circuitry: obtains one or more size parameters related to a size of the image block; determines whether the one or more size parameters and one or more thresholds satisfy a determined relationship; encodes a split parameter when the one or more size parameters and the one or more thresholds are determined to satisfy the determined relationship, the split parameter indicating whether the image block is to be split into a plurality of partitions including a non-rectangular partition; and encodes the image block after splitting the image block into the plurality of partitions when the split parameter indicates that the image block is to be split into the plurality of partitions.
-
公开(公告)号：US12069303B2
公开(公告)日：2024-08-20
申请号：US18242846
申请日：2023-09-06
Inventor： Chong Soon Lim , Han Boon Teo , Takahiro Nishi , Tadamasa Toma , Ru Ling Liao , Sughosh Pavan Shashidhar , Hai Wei Sun
IPC: H04N19/597 , G06T5/80 , H04N5/00 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/85
CPC classification number: H04N19/597 , G06T5/80 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/85
Abstract: An encoder capable of properly handling an image to be encoded or decoded includes processing circuitry and memory connected to the processing circuitry. Using the memory, the processing circuitry: obtains parameters including at least one of (i) one or more parameters related to a first process for correcting distortion in an image captured with a wide angle lens and (ii) one or more parameters related to a second process for stitching a plurality of images; generates an encoded image by encoding a current image to be processed that is based on the image or the plurality of images; and writes the parameters into a bitstream including the encoded image.
-
公开(公告)号：US20240259522A1
公开(公告)日：2024-08-01
申请号：US18629174
申请日：2024-04-08
Inventor： Han Boon Teo , Chong Soon Lim , Jingying Gao , Praveen Kumar Yadav , Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma
IPC: H04N7/01 , H04N19/184 , H04N19/70
CPC classification number: H04N7/013 , H04N19/184 , H04N19/70
Abstract: An encoder includes circuitry and memory coupled to the circuitry. In operation, the circuitry encodes a video into a bitstream, the video is specified to be outputted at a first speed different from an original speed of the video, and in encoding the video, the circuitry encodes, into the bitstream, original speed information related to a second speed that is the original speed of the video.
-
Patent Agency Ranking
公开(公告)号：US11997271B2
公开(公告)日：2024-05-28
申请号：US17987633
申请日：2022-11-15
Inventor： Tadamasa Toma , Takahiro Nishi , Kiyofumi Abe , Ryuichi Kanoh , Chong Soon Lim , Sughosh Pavan Shashidhar , Ru Ling Liao , Hai Wei Sun , Han Boon Teo , Jing Ya Li
IPC: H04N19/119 , H04N19/157 , H04N19/176
CPC classification number: H04N19/119 , H04N19/157 , H04N19/176
Abstract: An encoder partitions into blocks using a set of block partition modes. The set of block partition modes includes a first partition mode for partitioning a first block, and a second block partition mode for partitioning a second block which is one of blocks obtained after the first block is partitioned. When the number of partitions of the first block partition mode is three, the second block is a center block among the blocks obtained after partitioning the first block, and the partition direction of the second block partition mode is same as the partition direction of the first block partition mode, the second block partition mode indicates that the number of partitions is only three. A parameter for identifying the second block partition mode includes a first flag indicating a horizontal or vertical partition direction, and does not include a second flag indicating the number of partitions.
-
公开(公告)号：US11956467B2
公开(公告)日：2024-04-09
申请号：US17469748
申请日：2021-09-08
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Ryuichi Kanoh , Chong Soon Lim , Ru Ling Liao , Hai Wei Sun , Sughosh Pavan Shashidhar , Han Boon Teo , Jing Ya Li
IPC: H04N19/537 , H04N19/119 , H04N19/176
CPC classification number: H04N19/537 , H04N19/119 , H04N19/176
Abstract: An encoder, when sub-block encoding is to be performed, determines a plurality of sub-blocks in a first image block, the plurality of sub-blocks including a first sub-block, determines a first motion vector for the first sub-block by referring to a first candidate list, performs first inter prediction processing on the first sub-block using the first motion vector, and encodes the first image block using a result of the first inter prediction processing. When partition encoding is to be performed, the encoder, in operation, determines a plurality of partitions in a second image block, the plurality of partitions including a first partition, determines a second motion vector for the first partition by referring to a second candidate list, performs second inter prediction processing on the first partition using the second motion vector, and encodes the second image block using a result of the second inter prediction processing.
-
公开(公告)号：US11930206B2
公开(公告)日：2024-03-12
申请号：US18136561
申请日：2023-04-19
Inventor： Chong Soon Lim , Hai Wei Sun , Sughosh Pavan Shashidhar , Han Boon Teo , Ru Ling Liao , Jing Ya Li , Tadamasa Toma , Takahiro Nishi , Kiyofumi Abe , Ryuichi Kanoh
IPC: H04N19/52
CPC classification number: H04N19/52
Abstract: An encoder which includes circuitry and memory. Using the memory, the circuitry generates a list which includes candidates for a first motion vector for a first partition. The list has a maximum list size and an order of the candidates, and at least one of the maximum list size or the order of the candidates is dependent on at least one of a partition size or a partition shape of the first partition. The circuitry selects the first motion vector from the candidates included in the list; encodes an index indicating the first motion vector among the candidates in the list into the bitstream based on the maximum list size; and generates the predicted image for the first partition using the first motion vector.
-
公开(公告)号：US11917150B2
公开(公告)日：2024-02-27
申请号：US17728284
申请日：2022-04-25
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Ryuichi Kanoh , Chong Soon Lim , Ru Ling Liao , Hai Wei Sun , Sughosh Pavan Shashidhar , Han Boon Teo , Jing Ya Li
IPC: H04N19/119 , H04N19/176 , H04N19/137 , H04N19/52
CPC classification number: H04N19/119 , H04N19/137 , H04N19/176 , H04N19/52
Abstract: Provided is an encoder which includes circuitry and memory. Using the memory, the circuitry splits an image block into a plurality of partitions, obtains a prediction image for a partition, and encodes the image block using the prediction image. When the partition is not a non-rectangular partition, the circuitry obtains (i) a first prediction image for the partition, (ii) a gradient image for the first prediction image, and (iii) a second prediction image as the prediction image using the first prediction image and the gradient image. When the partition is a non-rectangular partition, the circuitry obtains the first prediction image as the prediction image without using the gradient image.
-
公开(公告)号：US11909998B2
公开(公告)日：2024-02-20
申请号：US16906993
申请日：2020-06-19
Inventor： Che-Wei Kuo , JIng Ya Li , Chong Soon Lim , Han Boon Teo , Hai Wei Sun , Rohith Mars , Tadamasa Toma , Takahiro Nishi , Kiyofumi Abe , Yusuke Kato
IPC: H04N19/50 , H04N19/124 , H04N19/176 , H04N19/186 , H04N19/96
CPC classification number: H04N19/50 , H04N19/124 , H04N19/176 , H04N19/186 , H04N19/96
Abstract: An encoder includes circuitry and memory. The circuitry determines whether a first virtual pipeline decoding unit (VPDU) is split into smaller blocks and whether a second VPDU is split into smaller blocks. In response to a determination the first VPDU is not split into smaller blocks and a determination the second VPDU is split into smaller blocks, a block of chroma samples is predicted without using luma samples. In response to a determination the first VPDU is split into smaller blocks and a determination the second VPDU is split into smaller blocks, the block of chroma samples is predicted using luma samples. In response to a determination the first VPDU is not split into smaller blocks and a determination the second VPDU is not split into smaller block, the block of chroma samples is predicted using luma samples. The block is encoded using the predicted chroma samples.
-
-
-
-
-
-
-
-
-
Search Results
174
records
(took 0.029 seconds)
