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公开(公告)号：US12041298B2
公开(公告)日：2024-07-16
申请号：US18138307
申请日：2023-04-24
Inventor： Peter Klenner , Frank Herrmann , Tadamasa Toma
IPC: H04N7/173 , H04N21/238 , H04N21/438
CPC classification number: H04N21/438 , H04N21/238 , H04N21/23805
Abstract: A client receives streaming data according to Moving Picture Experts Group-Dynamic Adaptive Streaming over HTTP (MPEG-DASH) standard. The client includes a transmitter which transmits a Media Presentation Description (MPD) request or a segment request to a server, and a receiver which receives an MPD specified in the MPD request and a segment specified in the segment request. The MPD request contains information requesting transmission of an initialization segment by a push. The receiver receives the initialization segment transmitted by the push.
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公开(公告)号：US12034974B2
公开(公告)日：2024-07-09
申请号：US17885740
申请日：2022-08-11
Inventor： Hai Wei Sun , Chong Soon Lim , Han Boon Teo , Jing Ya Li , Che Wei Kuo , Chu Tong Wang , Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma
IPC: H04N19/70 , H04N19/124 , H04N19/132 , H04N19/186 , H04N19/80
CPC classification number: H04N19/70 , H04N19/124 , H04N19/132 , H04N19/186 , H04N19/80
Abstract: An encoder: includes circuitry, and memory coupled to the circuitry; stores a first parameter into a bitstream, the first parameter indicating whether a syntax element related to a chroma tool offset is present in the bitstream; when the first parameter indicates that the syntax element is present in the bitstream, (i) stores, in the bitstream, one or more second parameters that are used in deblocking filtering for a chroma sample of a current image, in addition to the syntax element, (ii) performs the deblocking filtering using the one or more second parameters, and (iii) encodes the current image; and when the first parameter indicates that the syntax element is not present in the bitstream, encodes the current image without storing the one or more second parameters into the bitstream.
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公开(公告)号：US12034925B2
公开(公告)日：2024-07-09
申请号：US18071365
申请日：2022-11-29
Inventor： Jing Ya Li , Chong Soon Lim , Hai Wei Sun , Han Boon Teo , Che Wei Kuo , Chu Tong Wang , Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Yusuke Kato
IPC: H04N19/82 , H04N19/105 , H04N19/117 , H04N19/119 , H04N19/124 , H04N19/13 , H04N19/18 , H04N19/186
CPC classification number: H04N19/117 , H04N19/105 , H04N19/119 , H04N19/124 , H04N19/13 , H04N19/18 , H04N19/186 , H04N19/82
Abstract: An encoder includes circuitry and memory. The circuitry, in operation, generates a first coefficient value by applying a CCALF (cross component adaptive loop filtering) process to a first reconstructed image sample of a luma component. The circuitry generates a second coefficient value by applying an ALF (adaptive loop filtering) process to a second reconstructed image sample of a chroma component. The circuitry 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. In the CCALF process, in response to a coordinate of the second reconstructed image sample being (x, y), coordinates of the first reconstructed image samples are (2x, 2y−1), (2x−1, 2y), (2x, 2y), (2x+1, 2y), (2x−1, 2y+1), (2x, 2y+1), (2x+1, 2y+1), and (2x, 2y+2).
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24.发明公开公开(公告)号：US20240219174A1
公开(公告)日：2024-07-04
申请号：US18602511
申请日：2024-03-12
Inventor： Takahiro Nishi , Tadamasa Toma , Toshiyasu Sugio , Toru Matsunobu , Satoshi Yoshikawa , Tatsuya Koyama
CPC classification number: G01B21/04 , G01B11/00 , G01B21/00 , G06T9/001 , G06T9/004 , G08G1/161 , H04L67/04 , H04L67/5651
Abstract: A three-dimensional data creation method for use in a vehicle including a sensor and a data receiver that transmits and receives three-dimensional data to and from an external device. The three-dimensional data creation method includes: creating second three-dimensional data based on information detected by the sensor and first three-dimensional data received by the data receiver; and transmitting, to the external device, third three-dimensional data that is part of the second three-dimensional data.
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公开(公告)号：US12022063B2
公开(公告)日：2024-06-25
申请号：US17332132
申请日：2021-05-27
Inventor： Ru Ling Liao , Chong Soon Lim , Jing Ya Li , Han Boon Teo , Hai Wei Sun , Che Wei Kuo , Yusuke Kato , Tadamasa Toma , Kiyofumi Abe , Takahiro Nishi
IPC: H04N19/107 , H04N19/176
CPC classification number: H04N19/107 , H04N19/176
Abstract: An image encoder includes: circuitry; and a memory coupled to the circuitry. The circuitry, in operation: calculates first values of a current block using intra prediction, the intra prediction being limited to planar mode, the planar mode using multiple reference pixels for each pixel location of the current block; calculates second values of the current block using inter prediction; calculates third values of the current block by weighting the first values and the second values; and encodes the current block using the third values, and in the calculating of the third values, a first weight is applied to the first values and a second weight is applied to the second values, the second weight being different from the first weight.
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Patent Agency Ranking
公开(公告)号：US12010395B2
公开(公告)日：2024-06-11
申请号：US16669769
申请日：2019-10-31
Inventor： Tadamasa Toma , Noritaka Iguchi , Hisaya Katou
IPC: H04N21/6379 , G11B27/10 , H04N19/436 , H04N21/426 , H04N21/438 , H04N21/845 , H04N21/85
CPC classification number: H04N21/6379 , G11B27/10 , H04N19/436 , H04N21/42615 , H04N21/4382 , H04N21/845 , H04N21/8456 , H04N21/85
Abstract: A transmission method includes: dividing a picture into a plurality of regions; generating a plurality of pieces of encoded data that respectively correspond to the plurality of regions by encoding the plurality of regions such that each of the plurality of regions can be decoded independently; packetizing the generated plurality of pieces of encoded data into a plurality of packets such that pieces of encoded data for different regions are not stored in a single packet; and transmitting the plurality of packets. By this, workload for generation of decoding target data is reduced.
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公开(公告)号：US12010347B2
公开(公告)日：2024-06-11
申请号：US17685226
申请日：2022-03-02
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: H04N19/82 , H04N19/117 , H04N19/119 , H04N19/124 , H04N19/13 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/593 , H04N19/61 , H04N19/96
CPC classification number: H04N19/82 , H04N19/117 , H04N19/119 , H04N19/124 , H04N19/13 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/593 , H04N19/61 , H04N19/96
Abstract: An encoder includes circuitry and memory. The circuitry, in operation, generates a first coefficient value by applying a CCALF (cross component adaptive loop filtering) process to a first reconstructed image sample of a luma component. The circuitry generates a second coefficient value by applying an ALF (adaptive loop filtering) process to a second reconstructed image sample of a chroma component. The circuitry 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 determines a first parameter having the same value for Cb component and Cr component of the chroma component. The circuitry determines, using the first parameter, a model of entropy coding from a plurality of models. The circuitry performs, using the model, the entropy coding of a second parameter of the CCALF process.
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公开(公告)号：US11997310B2
公开(公告)日：2024-05-28
申请号：US18109435
申请日：2023-02-14
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Ryuichi Kanoh
IPC: H04N19/537 , H04N19/105 , H04N19/157 , H04N19/52 , H04N19/573
CPC classification number: H04N19/537 , H04N19/105 , H04N19/157 , H04N19/52 , H04N19/573
Abstract: An encoder includes memory and circuitry. The circuitry derives a first motion vector in a unit of a prediction block using a first inter frame prediction mode that uses a degree of matching between two reconstructed images of two regions in two difference pictures, the prediction block being obtained by splitting an image included in a video; and performs, in the unit of the prediction block, a first motion compensation process that generates a prediction image by referring to a spatial gradient of luminance in an image generated by performing motion compensation using the first motion vector derived.
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公开(公告)号：US11985350B2
公开(公告)日：2024-05-14
申请号：US17373106
申请日：2021-07-12
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.
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公开(公告)号：US11973932B2
公开(公告)日：2024-04-30
申请号：US17722901
申请日：2022-04-18
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Yusuke Kato
IPC: H04N19/103 , H04N19/186 , H04N19/60 , H04N19/70
CPC classification number: H04N19/103 , H04N19/186 , H04N19/60 , H04N19/70
Abstract: An encoder includes circuitry and memory coupled to the circuitry. In operation, the circuitry: determines whether an image format of a video is a format including a chroma component; when it is determined that the image format is a format including a chroma component, signals a flag indicating whether application of JCCR is allowed or not in a header of a stream, and (i) encodes the video with application of the JCCR allowed, or (ii) encodes the video with application of the JCCR not allowed; and when it is determined that the image format is a format including no chroma component, signals no flag indicating whether application of the JCCR is allowed or not in the header of the stream, and encodes the video with application of the JCCR not allowed.
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