Patents by Inventor Kenshiro Takeuchi
Kenshiro Takeuchi 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: 11778228Abstract: A moving image encoding device includes a memory, and a processor coupled to the memory and configured to partition a picture edge block into sub-blocks so that none of the sub-blocks include an edge of a picture by partitioning the picture edge block into four or two, the picture edge block being a block including a horizontal or vertical edge of the picture among blocks of the picture, generate a prediction block by referring to another encoded picture or an encoded area of the picture for each of the sub-blocks, calculate a prediction error between a pixel of a given sub-block and a corresponding pixel of the prediction block corresponding to the given sub-block for each of the sub-blocks and encode the prediction error, and add partitioning information indicating whether the picture edge block has been partitioned into four or two, to encoded moving image data.Type: GrantFiled: July 6, 2021Date of Patent: October 3, 2023Assignee: FUJITSU LIMITEDInventors: Kenshiro Takeuchi, Guillaume Denis Christian Barroux, Kimihiko Kazui
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Patent number: 11223829Abstract: A first encoder divides an encoding target image included in a video into a plurality of blocks, and encodes each of the plurality of blocks by performing a prediction coding by use of filtering processing. A second encoder encodes a parameter that represents a direction of a line of pixels in the filtering processing. Here, when an encoding target block that is one of the plurality of blocks has a rectangular shape, the second encoder changes, according to a direction of a long side of the rectangular shape, a process of encoding the parameter.Type: GrantFiled: August 6, 2018Date of Patent: January 11, 2022Assignee: FUJITSU LIMITEDInventors: Guillaume Denis Christian Barroux, Kimihiko Kazui, Kenshiro Takeuchi
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Publication number: 20210337233Abstract: A moving image encoding device includes a memory, and a processor coupled to the memory and configured to partition a picture edge block into sub-blocks so that none of the sub-blocks include an edge of a picture by partitioning the picture edge block into four or two, the picture edge block being a block including a horizontal or vertical edge of the picture among blocks of the picture, generate a prediction block by referring to another encoded picture or an encoded area of the picture for each of the sub-blocks, calculate a prediction error between a pixel of a given sub-block and a corresponding pixel of the prediction block corresponding to the given sub-block for each of the sub-blocks and encode the prediction error, and add partitioning information indicating whether the picture edge block has been partitioned into four or two, to encoded moving image data.Type: ApplicationFiled: July 6, 2021Publication date: October 28, 2021Applicant: FUJITSU LIMITEDInventors: Kenshiro Takeuchi, Guillaume Denis Christian Barroux, Kimihiko KAZUI
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Patent number: 11089326Abstract: A moving image encoding device includes a memory, and a processor coupled to the memory and configured to partition a picture edge block into sub-blocks so that none of the sub-blocks include an edge of a picture by partitioning the picture edge block into four or two, the picture edge block being a block including a horizontal or vertical edge of the picture among blocks of the picture, generate a prediction block by referring to another encoded picture or an encoded area of the picture for each of the sub-blocks, calculate a prediction error between a pixel of a given sub-block and a corresponding pixel of the prediction block corresponding to the given sub-block for each of the sub-blocks and encode the prediction error, and add partitioning information indicating whether the picture edge block has been partitioned into four or two, to encoded moving image data.Type: GrantFiled: April 7, 2020Date of Patent: August 10, 2021Assignee: FUJITSU LIMITEDInventors: Kenshiro Takeuchi, Guillaume Denis Christian Barroux, Kimihiko Kazui
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Publication number: 20200236393Abstract: A moving image encoding device includes a memory, and a processor coupled to the memory and configured to partition a picture edge block into sub-blocks so that none of the sub-blocks include an edge of a picture by partitioning the picture edge block into four or two, the picture edge block being a block including a horizontal or vertical edge of the picture among blocks of the picture, generate a prediction block by referring to another encoded picture or an encoded area of the picture for each of the sub-blocks, calculate a prediction error between a pixel of a given sub-block and a corresponding pixel of the prediction block corresponding to the given sub-block for each of the sub-blocks and encode the prediction error, and add partitioning information indicating whether the picture edge block has been partitioned into four or two, to encoded moving image data.Type: ApplicationFiled: April 7, 2020Publication date: July 23, 2020Applicant: FUJITSU LIMITEDInventors: Kenshiro Takeuchi, Guillaume Denis Christian Barroux, Kimihiko KAZUI
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Patent number: 10638155Abstract: An apparatus for a video encoding process executes a difference process for calculating a difference value between corresponding pixels of a first reference block on a first encoded reference picture in a first direction and a second reference block on a second encoded reference picture in a second direction; executes a predictive process for generating a predictive block by calculating a pixel value of the predictive block in accordance with the bi-predictive mode for each pixel in which an absolute value of the difference value is less than a threshold value, and by calculating the pixel value of the predictive block based on a value of the corresponding pixel of one of the first reference block and the second reference block for each pixel in which the absolute value of the difference value is the threshold value or more.Type: GrantFiled: December 11, 2017Date of Patent: April 28, 2020Assignee: FUJITSU LIMITEDInventors: Kenshiro Takeuchi, Kimihiko Kazui, Satoshi Shimada, Hidenobu Miyoshi, Guillaume Denis Christian Barroux
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Publication number: 20190052882Abstract: A first encoder divides an encoding target image included in a video into a plurality of blocks, and encodes each of the plurality of blocks by performing a prediction coding by use of filtering processing. A second encoder encodes a parameter that represents a direction of a line of pixels in the filtering processing. Here, when an encoding target block that is one of the plurality of blocks has a rectangular shape, the second encoder changes, according to a direction of a long side of the rectangular shape, a process of encoding the parameter.Type: ApplicationFiled: August 6, 2018Publication date: February 14, 2019Applicant: FUJITSU LIMITEDInventors: Guillaume Denis Christian Barroux, Kimihiko KAZUI, Kenshiro Takeuchi
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Patent number: 10104389Abstract: An apparatus for encoding a moving picture by an inter-layer prediction coding determines, in a first encoding process for a first layer, whether the orthogonal transformation is applied to a first sub-block, based on a feature amount indicating a localization degree level of a pixel having a non-zero value in a prediction error signal. The apparatus generates, in the first encoding process, a local decoding picture by decoding the first sub-block based on a quantized coefficient obtained by quantizing either one of an orthogonal transformation coefficient or the prediction error signal, according to a result of the determining. The apparatus generates, in a second encoding process for a second layer, a second prediction block based in part on the local decoding picture. The apparatus applies the entropy encoding to a second prediction error signal between the second prediction block and a second block, to output an encoded bit stream.Type: GrantFiled: September 22, 2016Date of Patent: October 16, 2018Assignee: FUJITSU LIMITEDInventor: Kenshiro Takeuchi
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Publication number: 20180184116Abstract: An apparatus for a video encoding process executes a difference process for calculating a difference value between corresponding pixels of a first reference block on a first encoded reference picture in a first direction and a second reference block on a second encoded reference picture in a second direction; executes a predictive process for generating a predictive block by calculating a pixel value of the predictive block in accordance with the bi-predictive mode for each pixel in which an absolute value of the difference value is less than a threshold value, and by calculating the pixel value of the predictive block based on a value of the corresponding pixel of one of the first reference block and the second reference block for each pixel in which the absolute value of the difference value is the threshold value or more.Type: ApplicationFiled: December 11, 2017Publication date: June 28, 2018Applicant: FUJITSU LIMITEDInventors: Kenshiro Takeuchi, Kimihiko KAZUI, Satoshi SHIMADA, Hidenobu MIYOSHI, Guillaume Denis Christian Barroux
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Publication number: 20170264913Abstract: A processor requests a first stream encoded by irreversible encoding from an encoding device, decodes the first stream, generates a first decoded image from a first encoded image obtained by encoding one image, and outputs the first decoded image. Then, the processor requests a second stream from the encoding device. The second stream includes a second encoded image obtained by applying inter-prediction to the one image and by encoding a prediction error by reversible encoding, the inter-prediction using a locally decoded image obtained by decoding the first encoded image as a reference image and using a motion vector for which a magnitude is 0. The processor decodes the second stream, generates a second decoded image from the second encoded image, generates a third decoded image that corresponds to the first decoded image by using a result of adding the first and second decoded images, and outputs the third decoded image.Type: ApplicationFiled: May 26, 2017Publication date: September 14, 2017Applicant: FUJITSU LIMITEDInventors: Kimihiko KAZUI, Tomonori KUBOTA, Satoshi SHIMADA, KOHJI YAMADA, Kenshiro Takeuchi
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Publication number: 20170099494Abstract: An apparatus for encoding a moving picture by an inter-layer prediction coding determines, in a first encoding process for a first layer, whether the orthogonal transformation is applied to a first sub-block, based on a feature amount indicating a localization degree level of a pixel having a non-zero value in a prediction error signal. The apparatus generates, in the first encoding process, a local decoding picture by decoding the first sub-block based on a quantized coefficient obtained by quantizing either one of an orthogonal transformation coefficient or the prediction error signal, according to a result of the determining. The apparatus generates, in a second encoding process for a second layer, a second prediction block based in part on the local decoding picture. The apparatus applies the entropy encoding to a second prediction error signal between the second prediction block and a second block, to output an encoded bit stream.Type: ApplicationFiled: September 22, 2016Publication date: April 6, 2017Applicant: FUJITSU LIMITEDInventor: Kenshiro Takeuchi