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公开(公告)号：US20250168332A1
公开(公告)日：2025-05-22
申请号：US19025525
申请日：2025-01-16
Inventor： Che-Wei KUO , Chong Soon LIM , Jing Ya LI , Han Boon TEO , Hai Wei SUN , Chu Tong WANG , Tadamasa TOMA , Takahiro NISHI , Kiyofumi ABE , Yusuke KATO
IPC: H04N19/117 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/82
Abstract: An encoder includes circuitry which generates a first coefficient value by applying a CCALF process to a first reconstructed image sample of a luma component; generates a second coefficient value by applying an ALF process to a second reconstructed image sample of a chroma component; generates a third coefficient value by adding the first coefficient value to the second coefficient value; and encodes a third reconstructed image sample of the chroma component using the third coefficient value. The circuitry writes a first parameter into a sequence parameter set; writes a second parameter into a parameter set of a picture in response to a value of the first parameter being 1; writes a third parameter into a slice header in response to the value of the first parameter being 1; and writes a fourth parameter into a coding tree unit in response to a value of the third parameter being 1.
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公开(公告)号：US20250119573A1
公开(公告)日：2025-04-10
申请号：US18950959
申请日：2024-11-18
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: H04N19/513 , H04N19/119 , H04N19/176 , 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.
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公开(公告)号：US20250097476A1
公开(公告)日：2025-03-20
申请号：US18958923
申请日：2024-11-25
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.
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4.发明申请公开(公告)号：US20250071272A1
公开(公告)日：2025-02-27
申请号：US18945959
申请日：2024-11-13
Inventor： Jingying GAO , Han Boon TEO , Chong Soon LIM , Praveen Kumar YADAV , Kiyofumi ABE , Takahiro NISHI , Tadamasa TOMA
IPC: H04N19/117 , H04N19/44 , H04N19/86
Abstract: An image decoding device includes circuitry and a memory connected to the circuitry, in which in operation, the circuitry acquires a first image and a plurality of first filter sets by decoding a bitstream, generates and outputs a second image by selecting one first filter set from the plurality of first filter sets based on usage information indicating an image usage, and applying the first filter set having been selected to the first image.
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公开(公告)号：US20250039393A1
公开(公告)日：2025-01-30
申请号：US18910733
申请日：2024-10-09
Inventor： Ru Ling LIAO , Chong Soon LIM , Hai Wei SUN , Han Boon TEO , Jing Ya LI , Kiyofumi ABE , Takahiro NISHI , Tadamasa TOMA
IPC: H04N19/137 , H04N19/105 , H04N19/119 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: An image encoder or decoder includes circuitry and a memory coupled to the circuitry. The circuitry, in operation, predicts a first set of samples for a first partition of a current picture with one or more motion vectors including a first motion vector and predicts a second set of samples for a first portion of the first partition with one or more motion vectors from a second partition different from the first partition. The samples of the first set of samples of the first portion of the first partition and of the second set of samples of the first portion of the first partition are weighted. A motion vector for the first portion of the first partition is stored which is based on one or both of the first motion vector and the second motion vector. The first partition is encoded or decoded using at least the weighted samples of the first portion of the first partition.
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Patent Agency Ranking
公开(公告)号：US20250030868A1
公开(公告)日：2025-01-23
申请号：US18908088
申请日：2024-10-07
Inventor： Ru Ling LIAO , Chong Soon LIM , Hai Wei SUN , Han Boon TEO , Jing Ya LI , Kiyofumi ABE , Takahiro NISHI , Tadamasa TOMA
IPC: H04N19/137 , H04N19/105 , H04N19/119 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: An image encoder or decoder includes circuitry and a memory coupled to the circuitry. The circuitry, in operation, predicts a first set of samples for a first partition of a current picture with one or more motion vectors including a first motion vector and predicts a second set of samples for a first portion of the first partition with one or more motion vectors from a second partition different from the first partition. The samples of the first set of samples of the first portion of the first partition and of the second set of samples of the first portion of the first partition are weighted. A motion vector for the first portion of the first partition is stored which is based on one or both of the first motion vector and the second motion vector. The first partition is encoded or decoded using at least the weighted samples of the first portion of the first partition.
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公开(公告)号：US20240388707A1
公开(公告)日：2024-11-21
申请号：US18787763
申请日：2024-07-29
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
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.
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8.发明公开公开(公告)号：US20240163421A1
公开(公告)日：2024-05-16
申请号：US18381306
申请日：2023-10-18
Inventor： Han Boon TEO , Chong Soon LIM , Chu Tong WANG , Tadamasa TOMA
IPC: H04N19/103 , H04N19/124 , H04N19/20
CPC classification number: H04N19/103 , H04N19/124 , H04N19/20
Abstract: The image encoding device switches, based on one or more parameters related to an object in an image, between an encoding process for (i) a first region of the image including the object and (ii) a second region of the image that does not include the object, the one or more parameters being input from a first processing device that executes a prescribed task process on a basis of the image, generates a bitstream, and transmits the bitstream to an image decoding device.
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公开(公告)号：US20240037797A1
公开(公告)日：2024-02-01
申请号：US18380253
申请日：2023-10-16
Inventor： Han Boon TEO , Chong Soon LIM , Chu Tong WANG , Kiyofumi ABE
IPC: G06T9/00 , G06T7/12 , G06T7/20 , G06T7/70 , G06V10/771
CPC classification number: G06T9/00 , G06T7/12 , G06T7/20 , G06T7/70 , G06V10/771 , G06V2201/07
Abstract: An image decoding device that: receives, from an image encoding device, a bitstream including encoded data of a plurality of feature maps for an image; decodes the plurality of feature maps using the bitstream; selects a first feature map from the plurality of decoded feature maps; outputs the first feature map to a first task processing device that executes a first task process based on the first feature map; selects a second feature map from the plurality of decoded feature maps; and outputs the second feature map to a second task processing device that executes a second task process based on the second feature map.
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公开(公告)号：US20240031570A1
公开(公告)日：2024-01-25
申请号：US18365762
申请日：2023-08-04
Inventor： Chong Soon LIM , Hai Wei SUN , Sughosh Pavan SHASHIDHAR , Han Boon TEO , Ru Ling LIAO , Takahiro NISHI , Tadamasa TOMA
IPC: H04N19/119 , H04N19/60 , H04N19/50 , H04N19/176
CPC classification number: H04N19/119 , H04N19/60 , H04N19/50 , H04N19/176
Abstract: An encoder according to one aspect of the present disclosure encodes a block of an image, and includes a processor and memory connected to the processor. Using the memory, the processor partitions a block into a plurality of sub blocks and encodes a sub block included in the plurality of sub blocks in an encoding process including at least a transform process or a prediction process. The block is partitioned using a multiple partition including at least three odd-numbered child nodes and each of a width and a height of each of the plurality of sub blocks is a power of two.
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