Patents by Inventor Naohiko Kotaka
Naohiko Kotaka 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: 9794581Abstract: Provided is an image processing device including: a division unit that divides pictures of image data into multiple arrangements; multiple coding units, each of which codes pictures in the mutually-different arrangements that result from the division by the division unit and generates a stream; and a composition unit that composites the streams in the arrangements, which are generated by the multiple coding units, in which the coding unit generates header information on the stream in such a manner that a stream which results from the compositing by the composition unit becomes normal.Type: GrantFiled: May 15, 2014Date of Patent: October 17, 2017Assignee: SONY CORPORATIONInventor: Naohiko Kotaka
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Patent number: 9762926Abstract: An image processing device includes: a division unit that divides each picture of image data into multiple arrangements; multiple coding units, each of which codes the pictures in the mutually-different arrangements that result from the division by the division unit; and a composition unit that composites streams in the arrangements, which are obtained by each of the multiple coding units coding each picture, in which when coding a current picture, the coding unit performs inter-prediction using a first global motion vector (GMV) that is derived from motion information on a portion whose processing is finished, of a picture that precedes the current picture in the image data that is present before being divided by the division unit and whose processing is in progress in a different coding unit.Type: GrantFiled: May 1, 2014Date of Patent: September 12, 2017Assignee: SONY CORPORATIONInventor: Naohiko Kotaka
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Publication number: 20150036753Abstract: Provided is an image processing device including a transform unit configured to transform a coding parameter used in coding of a first image into a coding parameter of a second image which is different from the first image and is of substantially the same time as the first image, and a second-image coding unit configured to code the second image using the coding parameter of the second image obtained through the transform by the transform unit.Type: ApplicationFiled: March 21, 2013Publication date: February 5, 2015Applicant: SONY CORPORATIONInventors: Naohiko Kotaka, Yoshikazu Yoshihara, Kentaro Matsukura
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Publication number: 20140376642Abstract: Provided is an image processing device including: a division unit that divides pictures of image data into multiple arrangements; multiple coding units, each of which codes pictures in the mutually-different arrangements that result from the division by the division unit and generates a stream; and a composition unit that composites the streams in the arrangements, which are generated by the multiple coding units, in which the coding unit generates header information on the stream in such a manner that a stream which results from the compositing by the composition unit becomes normal.Type: ApplicationFiled: May 15, 2014Publication date: December 25, 2014Applicant: Sony CorporationInventor: Naohiko KOTAKA
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Publication number: 20140362920Abstract: An image processing device includes: a division unit that divides each picture of image data into multiple arrangements; multiple coding units, each of which codes the pictures in the mutually-different arrangements that result from the division by the division unit; and a composition unit that composites streams in the arrangements, which are obtained by each of the multiple coding units coding each picture, in which when coding a current picture, the coding unit performs inter-prediction using a first global motion vector (GMV) that is derived from motion information on a portion whose processing is finished, of a picture that precedes the current picture in the image data that is present before being divided by the division unit and whose processing is in progress in a different coding unit.Type: ApplicationFiled: May 1, 2014Publication date: December 11, 2014Applicant: SONY CORPORATIONInventor: Naohiko KOTAKA
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Patent number: 8780994Abstract: An image encoding apparatus includes: a prediction preparing section which prepares a prediction for each intra-prediction mode by using at least ones of pixel signals of pixels lined horizontally in an upper end of an encoding target block and pixel signals of pixels lined vertically in a left end of the encoding target block among pixel signals of the encoding target block; and a prediction mode derivation section which execute an intra-prediction operation by using an image of the encoding target block in an encoding target image and the prediction prepared by the prediction preparing section.Type: GrantFiled: February 22, 2010Date of Patent: July 15, 2014Assignee: Sony CorporationInventors: Naohiko Kotaka, Munehiro Nakazato
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Patent number: 8761530Abstract: A rate control unit adjusts a target code amount that is a target of a code amount when a coding object image is coded based on a state of a capturing unit at the time of capturing the coding object image that is an object of coding, and an orthogonal transformation unit, a quantization unit, and a variable-length coding unit code the coding object image in accordance with the adjusted target code amount. The present technology, for example, can be applied to a coding device that codes each image obtained by capturing of the capturing unit.Type: GrantFiled: April 6, 2012Date of Patent: June 24, 2014Assignee: Sony CorporationInventor: Naohiko Kotaka
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Patent number: 8385423Abstract: A motion vector detecting device includes: a motion predicting and compensating circuit calculating cost values of a plurality of motion vectors, which is candidates of an optimal motion vector, using a cost function indicating an encoding efficiency with a first pixel precision every prediction mode and calculating the optimal motion vector with a second pixel precision and the cost value of the optimal motion vector with the second pixel precision using a profile of the cost values with the first pixel precision.Type: GrantFiled: July 14, 2009Date of Patent: February 26, 2013Assignee: Sony CorporationInventors: Naohiko Kotaka, Munehiro Nakazato
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Patent number: 8379726Abstract: A coding apparatus includes: a storage section that stores information for coding an image area to be currently coded in a direct prediction mode that predicts motion information of an image area to be coded by referring to motion information of a previously coded image area; a deriving section that derives motion information of the image area in the direct prediction mode by referring to the information stored in the storage section; a selecting section that selects a prediction mode for coding the image area to be coded, in accordance with the motion information derived by the deriving section; and a determining section that determines information necessary for the deriving section to derive motion information of an uncoded image area, from coding information applied in the prediction mode selected by the selecting section to the image area to be coded, and stores only information determined necessary into the storage section.Type: GrantFiled: August 20, 2008Date of Patent: February 19, 2013Assignee: Sony CorporationInventor: Naohiko Kotaka
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Patent number: 8358860Abstract: A motion vector detecting device includes: a motion predicting and compensating means for calculating cost values of a plurality of motion vectors, which is candidates of an optimal motion vector, with a first pixel precision every prediction mode and calculating the optimal motion vector with a second pixel precision and a cost value of the optimal motion vector with the second pixel precision on the basis of a gradient of the cost values.Type: GrantFiled: July 13, 2009Date of Patent: January 22, 2013Assignee: Sony CorporationInventors: Naohiko Kotaka, Munehiro Nakazato
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Publication number: 20120301041Abstract: A rate control unit adjusts a target code amount that is a target of a code amount when a coding object image is coded based on a state of a capturing unit at the time of capturing the coding object image that is an object of coding, and an orthogonal transformation unit, a quantization unit, and a variable-length coding unit code the coding object image in accordance with the adjusted target code amount. The present technology, for example, can be applied to a coding device that codes each image obtained by capturing of the capturing unit.Type: ApplicationFiled: April 6, 2012Publication date: November 29, 2012Applicant: Sony CorporationInventor: Naohiko Kotaka
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Publication number: 20120163449Abstract: An image processing apparatus accumulates information generated corresponding to an input image to a buffer and obtains the accumulated information to perform arithmetic encoding. The image processing apparatus includes a calculating unit which calculates an allowable quantity of the information accumulatable in the buffer for each predetermined unit of the input image, based on a maximum accumulation amount of the buffer and an information quantity of the information generated for each predetermined unit of the input unit; and a generating unit which generates the information with an information quantity according to the allowable quantity calculated by the calculating unit.Type: ApplicationFiled: October 13, 2011Publication date: June 28, 2012Applicant: Sony CorporationInventor: Naohiko KOTAKA
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Publication number: 20100260261Abstract: An image encoding apparatus includes: a luminance component intra-prediction unit which divides an encoding target image into first blocks of (M×M) pixels and determines an intra-prediction mode of a luminance component for each of encoding target blocks of the first block; and a color difference component intra-prediction unit which calculates a weight of a prediction direction by using the intra-prediction mode of the luminance component in the first block and determines an intra-prediction mode of a color difference component of the first block from the weight of the prediction direction.Type: ApplicationFiled: March 26, 2010Publication date: October 14, 2010Applicant: Sony CorporationInventors: Naohiko Kotaka, Munehiro Nakazato
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Publication number: 20100260263Abstract: An image encoding apparatus includes: a prediction preparing section which prepares a prediction for each intra-prediction mode by using at least ones of pixel signals of pixels lined horizontally in an upper end of an encoding target block and pixel signals of pixels lined vertically in a left end of the encoding target block among pixel signals of the encoding target block; and a prediction mode derivation section which execute an intra-prediction operation by using an image of the encoding target block in an encoding target image and the prediction prepared by the prediction preparing section.Type: ApplicationFiled: February 22, 2010Publication date: October 14, 2010Applicant: Sony CorporationInventors: Naohiko KOTAKA, Munehiro Nakazato
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Publication number: 20100020881Abstract: A motion vector detecting device includes: a motion predicting and compensating circuit calculating cost values of a plurality of motion vectors, which is candidates of an optimal motion vector, using a cost function indicating an encoding efficiency with a first pixel precision every prediction mode and calculating the optimal motion vector with a second pixel precision and the cost value of the optimal motion vector with the second pixel precision using a profile of the cost values with the first pixel precision.Type: ApplicationFiled: July 14, 2009Publication date: January 28, 2010Applicant: Sony CorporationInventors: Naohiko Kotaka, Munehiro Nakazato
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Publication number: 20100014765Abstract: A motion vector detecting device includes: a motion predicting and compensating means for calculating cost values of a plurality of motion vectors, which is candidates of an optimal motion vector, with a first pixel precision every prediction mode and calculating the optimal motion vector with a second pixel precision and a cost value of the optimal motion vector with the second pixel precision on the basis of a gradient of the cost values.Type: ApplicationFiled: July 13, 2009Publication date: January 21, 2010Applicant: Sony CorporationInventors: Naohiko Kotaka, Munehiro Nakazato
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Publication number: 20090060036Abstract: A coding apparatus includes: a storage section that stores information for coding an image area to be currently coded in a direct prediction mode that predicts motion information of an image area to be coded by referring to motion information of a previously coded image area; a deriving section that derives motion information of the image area in the direct prediction mode by referring to the information stored in the storage section; a selecting section that selects a prediction mode for coding the image area to be coded, in accordance with the motion information derived by the deriving section; and a determining section that determines information necessary for the deriving section to derive motion information of an uncoded image area, from coding information applied in the prediction mode selected by the selecting section to the image area to be coded, and stores only information determined necessary into the storage section.Type: ApplicationFiled: August 20, 2008Publication date: March 5, 2009Inventor: Naohiko KOTAKA