-
公开(公告)号:US11849147B2
公开(公告)日:2023-12-19
申请号:US17725084
申请日:2022-04-20
Inventor: Jing Ya Li , Che Wei Kuo , Chong Soon Lim , Chu Tong Wang , Han Boon Teo , Hai Wei Sun , Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Yusuke Kato
IPC: H04N19/66 , H04N19/122 , H04N19/176 , H04N19/103 , H04N19/96
CPC classification number: H04N19/66 , H04N19/122 , H04N19/176 , H04N19/103 , H04N19/96
Abstract: An encoder determines, based on a width and a height of a block, whether or not to disable a prediction mode in which the block is split along a partitioning line defined by a distance and an angle and then prediction is performed; and encodes the block with the prediction mode disabled or not disabled according to a result of the determination on whether or not to disable the prediction mode. Here, the distance is the shortest distance between the center of the block and the partitioning line, and the angle is an angle representing a direction from the center of the block toward the partitioning line in the shortest distance. The encoder determines to disable the prediction mode when (i) a width-to-height ratio is at least 8 or (ii) a height-to-width ratio is at least 8.
-
公开(公告)号:US11825126B2
公开(公告)日:2023-11-21
申请号:US17507571
申请日:2021-10-21
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
CPC classification number: 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:US11812045B2
公开(公告)日:2023-11-07
申请号:US17833986
申请日:2022-06-07
Inventor: Takahiro Nishi , Tadamasa Toma , Kiyofumi Abe , Yusuke Kato
IPC: H04N19/44 , H04N19/119 , H04N19/176 , H04N19/70
CPC classification number: H04N19/44 , H04N19/119 , H04N19/176 , H04N19/70
Abstract: According to one aspect of the present disclosure, a decoder includes memory and a processor coupled to the memory. The processor is configured to split a current picture into tiles, generate a slice having a rectangular shape and located at a lower-right corner of the current picture, the slice including at least a part of a tile among the tiles, generate first information on a region of the slice with header information, the header information not including information identical to the first information, and decode the slice with the first information.
-
公开(公告)号:US11805273B2
公开(公告)日:2023-10-31
申请号:US17886281
申请日:2022-08-11
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 , H04N19/513 , H04N19/119 , H04N19/176 , H04N19/96
CPC classification number: H04N19/521 , 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.
-
公开(公告)号:US11800196B1
公开(公告)日:2023-10-24
申请号:US17980730
申请日:2022-11-04
Inventor: Noritaka Iguchi , Tadamasa Toma , Hisaya Katou
IPC: H04N21/643 , H04N21/43 , H04L7/00 , H04N21/236 , H04N21/2381 , H04N21/242 , H04N21/262 , H04N21/438 , H04N21/61
CPC classification number: H04N21/64322 , H04L7/0012 , H04N21/2381 , H04N21/23614 , H04N21/242 , H04N21/26283 , H04N21/4305 , H04N21/4381 , H04N21/6125
Abstract: A transmission method includes generating one or more frames for content transfer using IP (Internet Protocol) packets, and transmitting the one or more generated frames by broadcast. Each of the one or more frames contains a plurality of second transfer units, each of the plurality of second transfer units contains one or more first transfer units, and each of the one or more first transfer units contains at least one of the IP packets. An object IP packet of the IP packets which is stored in a first transfer unit positioned at a head in the one or more frames contains reference clock information that indicates time for reproduction of the content in data structure different from data structure of an MMT (MPEG Media Transport) packet, and header compression processing on the object IP packet is omitted.
-
46.
公开(公告)号:US11790779B2
公开(公告)日:2023-10-17
申请号:US17723734
申请日:2022-04-19
Inventor: Tadamasa Toma , Takahiro Nishi , Toshiyasu Sugio , Toru Matsunobu , Satoshi Yoshikawa , Tatsuya Koyama
IPC: G08G1/0968 , B60W30/182 , G08G1/09 , G05D1/02 , G01C21/28 , G01S19/01 , G06V20/10 , G01C21/00 , B60W50/00 , B60W50/10 , B60W50/14 , G01C21/36
CPC classification number: G08G1/0968 , B60W30/182 , B60W50/0097 , B60W50/10 , B60W50/14 , G01C21/28 , G01C21/367 , G01C21/3655 , G01C21/3844 , G01C21/3867 , G01S19/01 , G05D1/02 , G06V20/10 , G08G1/09 , B60W2050/146
Abstract: A three-dimensional information processing method includes: obtaining, via a communication channel, map data that includes first three-dimensional position information; generating second three-dimensional position information from information detected by a sensor; judging whether one of the first three-dimensional position information and the second three-dimensional position information is abnormal by performing, on one of the first three-dimensional position information and the second three-dimensional position information, a process of judging whether an abnormality is present; determining a coping operation to cope with the abnormality when one of the first three-dimensional position information and the second three-dimensional position information is judged to be abnormal; and executing a control that is required to perform the coping operation.
-
公开(公告)号:US11785209B2
公开(公告)日:2023-10-10
申请号:US17693612
申请日:2022-03-14
Inventor: Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Ryuichi Kanoh
IPC: H04N19/105 , H04N19/159 , H04N19/176 , H04N19/186
CPC classification number: H04N19/105 , H04N19/159 , H04N19/176 , H04N19/186
Abstract: An encoder includes memory and circuitry. The circuitry, using the memory, (i) selects a mode from among a plurality of modes each for deriving a motion vector, and derives a motion vector for a current block via the selected mode, and (ii) performs inter prediction encoding on the current block, using the derived motion vector, via one of a skip mode and a non-skip mode different from the skip mode. The plurality of modes include a plurality of first modes each for predicting the motion vector for the current block based on an encoded block neighboring the current block without encoding information indicating a motion vector into a stream. When a second mode included in the plurality of first modes is selected, the current block is encoded via the non-skip mode regardless of presence or absence of a residual coefficient.
-
公开(公告)号:US11778178B2
公开(公告)日:2023-10-03
申请号:US17735938
申请日:2022-05-03
Inventor: Ryuichi Kanoh , Takahiro Nishi , Tadamasa Toma
IPC: H04N19/117 , H04N19/176 , H04N19/182 , H04N19/186
CPC classification number: H04N19/117 , H04N19/176 , H04N19/182 , H04N19/186
Abstract: An encoding method includes: changing values of luma pixels in a first block and a second block to filter a first boundary between the first block and the second block, using clipping such that change amounts of the respective values are within respective luma clip widths, the luma pixels in the first block and the second block being arranged along a first line across the first boundary; and changing values of chroma pixels in a third block and a fourth block to filter a second boundary between the third block and the fourth block, using clipping such that change amounts of the respective values are within respective chroma clip widths, the chroma pixels in the third block and the fourth block being arranged along a second line across the second boundary. The luma clip widths applied to the luma pixels are selected to be asymmetrical relative to the first boundary.
-
公开(公告)号:US11765414B2
公开(公告)日:2023-09-19
申请号:US17357208
申请日:2021-06-24
Inventor: Tadamasa Toma , Noritaka Iguchi , Takahiro Nishi , Hisaya Katou
IPC: H04N21/242 , H04H20/93 , H04N21/8547 , H04H60/13 , H04N21/462 , H04N21/61 , H04N21/43 , H04H20/18 , H04H20/24
CPC classification number: H04N21/242 , H04H20/93 , H04H60/13 , H04N21/4302 , H04N21/43072 , H04N21/4622 , H04N21/6112 , H04N21/6125 , H04N21/8547 , H04H20/18 , H04H20/24
Abstract: A transmitting method for transmitting contents using a broadcast wave and a communication path comprises: including content information in application control information when transmitting the contents using both the broadcast wave and the communication path, the content information being information for synchronizing a content transmitted by using the broadcast wave with a content transmitted by using the communication path at a reception side that receives the contents and being related to the content transmitted by using the communication path; and transmitting the application control information by using at least the broadcast wave in the broadcast wave and the communication path. As a result, a contents transmitting method is provided for enabling a quick access to contents through communication when the contents are reproduced by a combination of broadcast and communication on the receiving side.
-
公开(公告)号:US11722699B2
公开(公告)日:2023-08-08
申请号:US17726248
申请日:2022-04-21
Inventor: Jing Ya Li , Che Wei Kuo , Chong Soon Lim , Chu Tong Wang , Han Boon Teo , Hai Wei Sun , Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Yusuke Kato
IPC: H04N19/66 , H04N19/122 , H04N19/176 , H04N19/103 , H04N19/96
CPC classification number: H04N19/66 , H04N19/122 , H04N19/176 , H04N19/103 , H04N19/96
Abstract: An encoder determines, based on a width and a height of a block, whether or not to disable a prediction mode in which the block is split along a partitioning line defined by a distance and an angle and then prediction is performed; and encodes the block with the prediction mode disabled or not disabled according to a result of the determination on whether or not to disable the prediction mode. Here, the distance is the shortest distance between the center of the block and the partitioning line, and the angle is an angle representing a direction from the center of the block toward the partitioning line in the shortest distance. The encoder determines to disable the prediction mode when (i) a width-to-height ratio is at least 8 or (ii) a height-to-width ratio is at least 8.
-
-
-
-
-
-
-
-
-