Patents by Inventor Akihiro Yamori
Akihiro Yamori has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11805262Abstract: An image encoding device is provided that performs, in an image, an intra-prediction on a block obtained by dividing the image so as to encode the block, the image encoding device including: a memory; and a processor coupled to the memory and the processor configured to select a rectangular block as the block, and to add a certain prediction direction as a selection target intra-prediction direction when the rectangular block is selected, wherein the certain prediction direction is one of prediction directions in which a pixel that is adjacent to a short side of the rectangular block is referred to, and an adjacent pixel in a left or upper block that is adjacent to a long side of the rectangular block is referred to in another prediction direction that is 180 degrees opposite to the certain prediction direction.Type: GrantFiled: February 14, 2022Date of Patent: October 31, 2023Assignee: FUJITSU LIMITEDInventor: Akihiro Yamori
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Publication number: 20220272341Abstract: A decoding device includes one or more memories; and one or more processors coupled to the one or more memories and the one or more processors configured to acquire a division shape of a block in a non-rectangular prediction unit based on positional information of one division node of two division nodes at which a partition that divides a block in a coding unit included in coded data into the block in the non-rectangular prediction unit intersects a boundary of the block in the coding unit and an angle of an intra-prediction mode used to perform intra-prediction in the block in the non-rectangular prediction unit, and perform intra-prediction of the block in the non-rectangular prediction unit obtained by dividing the block in the coding unit based on the division shape using the intra-prediction mode.Type: ApplicationFiled: May 12, 2022Publication date: August 25, 2022Applicant: FUJITSU LIMITEDInventors: Akihiro Yamori, Kimihiko KAZUI
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Patent number: 11381810Abstract: An encoding apparatus includes: a memory; and a processor coupled to the memory and configured to: generate a value corresponding to a reference direction selected in intra prediction for a process target block by converting a value indicating the reference direction in accordance with a shape of the process target block; calculate a predicted value in the process target block from the values corresponding to the reference directions generated in intra prediction for neighboring blocks adjacent to the process target block; and generate a binary signal for arithmetic encoding based on the predicted value and the value corresponding to the reference direction generated in the intra prediction for the process target block.Type: GrantFiled: February 12, 2021Date of Patent: July 5, 2022Assignee: FUJITSU LIMITEDInventors: Kimihiko Kazui, Akihiro Yamori
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Publication number: 20220166988Abstract: An image encoding device is provided that performs, in an image, an intra-prediction on a block obtained by dividing the image so as to encode the block, the image encoding device including: a memory; and a processor coupled to the memory and the processor configured to select a rectangular block as the block, and to add a certain prediction direction as a selection target intra-prediction direction when the rectangular block is selected, wherein the certain prediction direction is one of prediction directions in which a pixel that is adjacent to a short side of the rectangular block is referred to, and an adjacent pixel in a left or upper block that is adjacent to a long side of the rectangular block is referred to in another prediction direction that is 180 degrees opposite to the certain prediction direction.Type: ApplicationFiled: February 14, 2022Publication date: May 26, 2022Applicant: FUJITSU LIMITEDInventor: Akihiro Yamori
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Patent number: 11284087Abstract: An image encoding device is provided that performs, in an image, an intra-prediction on a block obtained by dividing the image so as to encode the block, the image encoding device including: a memory; and a processor coupled to the memory and the processor configured to select a rectangular block as the block, and to add a certain prediction direction as a selection target intra-prediction direction when the rectangular block is selected, wherein the certain prediction direction is one of prediction directions in which a pixel that is adjacent to a short side of the rectangular block is referred to, and an adjacent pixel in a left or upper block that is adjacent to a long side of the rectangular block is referred to in another prediction direction that is 180 degrees opposite to the certain prediction direction.Type: GrantFiled: November 17, 2020Date of Patent: March 22, 2022Assignee: FUJITSU LIMITEDInventor: Akihiro Yamori
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Patent number: 11102504Abstract: processors set a search-range from a first processing-block to a side closer to the first processing-block by a size of a second processing-block from a boundary between a refreshed area and an unrefreshed area in a second picture preceding a first picture in which the first processing-block exists in the encoding order, detect a first motion vector for the first processing-block in the search-range, perform a weighted average of a second motion vector detected in the second processing-block around the first processing-block and the first motion vector to obtain the first motion vector, generate first prediction data by using the first motion vector and the second picture, use another block in an intra slice line of the first picture to generate second prediction data in the block in the intra slice line, and encode the first picture by using the first and second prediction data.Type: GrantFiled: December 13, 2019Date of Patent: August 24, 2021Assignee: FUJITSU LIMITEDInventor: Akihiro Yamori
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Publication number: 20210203926Abstract: A processor changes, according to a combination of a shape of a coding target block in an image included in a video and a shape of a coded block that is adjacent to the coding target block, first prediction mode information that indicates an intra prediction mode used for coding of the coded block to second prediction mode information, and generates candidate information including a candidate value for prediction mode information, by using the second prediction mode information. The processor generates an intra prediction pixel value for the decoding target block in a prescribed intra prediction mode, encodes the coding target block by using the intra prediction pixel value, and encodes prediction mode information that indicates the prescribed intra prediction mode, by using the candidate information.Type: ApplicationFiled: March 12, 2021Publication date: July 1, 2021Applicant: FUJITSU LIMITEDInventors: Akihiro Yamori, Kimihiko KAZUI
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Publication number: 20210168358Abstract: An encoding apparatus includes: a memory; and a processor coupled to the memory and configured to: generate a value corresponding to a reference direction selected in intra prediction for a process target block by converting a value indicating the reference direction in accordance with a shape of the process target block; calculate a predicted value in the process target block from the values corresponding to the reference directions generated in intra prediction for neighboring blocks adjacent to the process target block; and generate a binary signal for arithmetic encoding based on the predicted value and the value corresponding to the reference direction generated in the intra prediction for the process target block.Type: ApplicationFiled: February 12, 2021Publication date: June 3, 2021Applicant: FUJITSU LIMITEDInventors: Kimihiko KAZUI, Akihiro Yamori
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Patent number: 10979719Abstract: An image encoding device is provided that performs, in an image, an intra-prediction on a block obtained by dividing the image so as to encode the block, the image encoding device including: a memory; and a processor coupled to the memory and the processor configured to select a rectangular block as the block, and to add a certain prediction direction as a selection target intra-prediction direction when the rectangular block is selected, wherein the certain prediction direction is one of prediction directions in which a pixel that is adjacent to a short side of the rectangular block is referred to, and an adjacent pixel in a left or upper block that is adjacent to a long side of the rectangular block is referred to in another prediction direction that is 180 degrees opposite to the certain prediction direction.Type: GrantFiled: April 13, 2020Date of Patent: April 13, 2021Assignee: FUJITSU LIMITEDInventor: Akihiro Yamori
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Patent number: 10958914Abstract: An image encoding device is provided that performs, in an image, an intra-prediction on a block obtained by dividing the image so as to encode the block, the image encoding device including: a memory; and a processor coupled to the memory and the processor configured to select a rectangular block as the block, and to add a certain prediction direction as a selection target intra-prediction direction when the rectangular block is selected, wherein the certain prediction direction is one of prediction directions in which a pixel that is adjacent to a short side of the rectangular block is referred to, and an adjacent pixel in a left or upper block that is adjacent to a long side of the rectangular block is referred to in another prediction direction that is 180 degrees opposite to the certain prediction direction.Type: GrantFiled: April 10, 2020Date of Patent: March 23, 2021Assignee: FUJITSU LIMITEDInventor: Akihiro Yamori
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Publication number: 20210076049Abstract: An image encoding device is provided that performs, in an image, an intra-prediction on a block obtained by dividing the image so as to encode the block, the image encoding device including: a memory; and a processor coupled to the memory and the processor configured to select a rectangular block as the block, and to add a certain prediction direction as a selection target intra-prediction direction when the rectangular block is selected, wherein the certain prediction direction is one of prediction directions in which a pixel that is adjacent to a short side of the rectangular block is referred to, and an adjacent pixel in a left or upper block that is adjacent to a long side of the rectangular block is referred to in another prediction direction that is 180 degrees opposite to the certain prediction direction.Type: ApplicationFiled: November 17, 2020Publication date: March 11, 2021Applicant: FUJITSU LIMITEDInventor: Akihiro YAMORI
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Patent number: 10893290Abstract: An apparatus for moving image coding includes: a memory configured to store a reference panoramic image used for coding a coding-target panoramic image obtained by extending a panoramic image included in panoramic video photographed by an imaging device; and a processor coupled to the memory and configured to execute a decision process that includes deciding a vector that represents an amount of shift of the coding-target panoramic image relative to the reference panoramic image, execute a correction process that includes generating a corrected coding-target panoramic image by correcting a position of each of a plurality of coding-target regions in the coding-target panoramic image in accordance with the vector that represents the amount of shift, and execute a coding process that includes coding an image of each of the plurality of coding-target regions in the corrected coding-target panoramic image by using the reference panoramic image.Type: GrantFiled: November 29, 2017Date of Patent: January 12, 2021Assignee: FUJITSU LIMITEDInventor: Akihiro Yamori
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Patent number: 10757421Abstract: An information processing device includes: a memory; and a processor coupled to the memory and configured to: calculate, for a first block included in a coding target picture included in moving image data, a ratio of an area of a corrected block obtained by correcting distortion of a subject represented in the first block to an area of the first block, set code amount control information for the first block such that the higher the ratio for the first block, the larger a code amount which is assigned to the first block, and code a second block belonging to the first block among a plurality of second blocks which is obtained by dividing the coding target picture according to the code amount control information for the first block.Type: GrantFiled: December 18, 2018Date of Patent: August 25, 2020Assignee: FUJITSU LIMITEDInventors: Akihiro Yamori, Satoshi Shimada
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Publication number: 20200244973Abstract: An image encoding device is provided that performs, in an image, an intra-prediction on a block obtained by dividing the image so as to encode the block, the image encoding device including: a memory; and a processor coupled to the memory and the processor configured to select a rectangular block as the block, and to add a certain prediction direction as a selection target intra-prediction direction when the rectangular block is selected, wherein the certain prediction direction is one of prediction directions in which a pixel that is adjacent to a short side of the rectangular block is referred to, and an adjacent pixel in a left or upper block that is adjacent to a long side of the rectangular block is referred to in another prediction direction that is 180 degrees opposite to the certain prediction direction.Type: ApplicationFiled: April 13, 2020Publication date: July 30, 2020Applicant: FUJITSU LIMITEDInventor: Akihiro Yamori
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Publication number: 20200244972Abstract: An image encoding device is provided that performs, in an image, an intra-prediction on a block obtained by dividing the image so as to encode the block, the image encoding device including: a memory; and a processor coupled to the memory and the processor configured to select a rectangular block as the block, and to add a certain prediction direction as a selection target intra-prediction direction when the rectangular block is selected, wherein the certain prediction direction is one of prediction directions in which a pixel that is adjacent to a short side of the rectangular block is referred to, and an adjacent pixel in a left or upper block that is adjacent to a long side of the rectangular block is referred to in another prediction direction that is 180 degrees opposite to the certain prediction direction.Type: ApplicationFiled: April 10, 2020Publication date: July 30, 2020Applicant: FUJITSU LIMITEDInventor: Akihiro Yamori
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Publication number: 20200228823Abstract: processors set a search-range from a first processing-block to a side closer to the first processing-block by a size of a second processing-block from a boundary between a refreshed area and an unrefreshed area in a second picture preceding a first picture in which the first processing-block exists in the encoding order, detect a first motion vector for the first processing-block in the search-range, perform a weighted average of a second motion vector detected in the second processing-block around the first processing-block and the first motion vector to obtain the first motion vector, generate first prediction data by using the first motion vector and the second picture, use another block in an intra slice line of the first picture to generate second prediction data in the block in the intra slice line, and encode the first picture by using the first and second prediction data.Type: ApplicationFiled: December 13, 2019Publication date: July 16, 2020Applicant: FUJITSU LIMITEDInventor: Akihiro Yamori
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Patent number: 10666952Abstract: An image encoding device is provided that performs, in an image, an intra-prediction on a block obtained by dividing the image so as to encode the block, the image encoding device including: a memory; and a processor coupled to the memory and the processor configured to select a rectangular block as the block, and to add a certain prediction direction as a selection target intra-prediction direction when the rectangular block is selected, wherein the certain prediction direction is one of prediction directions in which a pixel that is adjacent to a short side of the rectangular block is referred to, and an adjacent pixel in a left or upper block that is adjacent to a long side of the rectangular block is referred to in another prediction direction that is 180 degrees opposite to the certain prediction direction.Type: GrantFiled: August 9, 2018Date of Patent: May 26, 2020Assignee: FUJITSU LIMITEDInventor: Akihiro Yamori
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Patent number: 10645423Abstract: A video image encoding device includes a memory and a processor. The processor is configured to determine a noise distribution within a target image to be encoded and included in a video image. The processor may limit sizes of blocks to be used for video image encoding of the target image to one or more sizes among multiple selectable sizes when it is determined that the noise distribution within the target image to be encoded is a predetermined noise distribution. The processor may also encode the target image by executing the video image encoding using the blocks of the one or more sizes.Type: GrantFiled: November 13, 2018Date of Patent: May 5, 2020Inventor: Akihiro Yamori
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Publication number: 20190208216Abstract: An information processing device includes: a memory; and a processor coupled to the memory and configured to: calculate, for a first block included in a coding target picture included in moving image data, a ratio of an area of a corrected block obtained by correcting distortion of a subject represented in the first block to an area of the first block, set code amount control information for the first block such that the higher the ratio for the first block, the larger a code amount which is assigned to the first block, and code a second block belonging to the first block among a plurality of second blocks which is obtained by dividing the coding target picture according to the code amount control information for the first block.Type: ApplicationFiled: December 18, 2018Publication date: July 4, 2019Applicant: FUJITSU LIMITEDInventors: Akihiro Yamori, Satoshi SHIMADA
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Publication number: 20190166385Abstract: A video image encoding device includes a memory and a processor. The processor is configured to determine a noise distribution within a target image to be encoded and included in a video image. The processor may limit sizes of blocks to be used for video image encoding of the target image to one or more sizes among multiple selectable sizes when it is determined that the noise distribution within the target image to be encoded is a predetermined noise distribution. The processor may also encode the target image by executing the video image encoding using the blocks of the one or more sizes.Type: ApplicationFiled: November 13, 2018Publication date: May 30, 2019Applicant: FUJITSU LIMITEDInventor: Akihiro Yamori