Patents by Inventor Kentarou Niikura
Kentarou Niikura 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: 11455061Abstract: An object of the present invention is to provide an information input device capable of realizing high-precision touch operations. The information input device includes a first surface for displaying input request information, a second surface for inputting input request information, a viewpoint calculator for calculating a viewpoint direction of an input person, and a coordinate corrector for correcting a position input to the second surface into a second position in response to the viewpoint direction of the input person and inputs the input request information on the first surface corresponding to the second position. The information input device further provides a storage device for holding distance information on distance between the first surface and the second surface.Type: GrantFiled: February 17, 2021Date of Patent: September 27, 2022Assignee: RENESAS ELECTRONICS CORPORATIONInventor: Kentarou Niikura
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Publication number: 20210165551Abstract: An object of the present invention is to provide an information input device capable of realizing high-precision touch operations. The information input device includes a first surface for displaying input request information, a second surface for inputting input request information, a viewpoint calculator for calculating a viewpoint direction of an input person, and a coordinate corrector for correcting a position input to the second surface into a second position in response to the viewpoint direction of the input person and inputs the input request information on the first surface corresponding to the second position. The information input device further provides a storage device for holding distance information on distance between the first surface and the second surface.Type: ApplicationFiled: February 17, 2021Publication date: June 3, 2021Inventor: Kentarou NIIKURA
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Publication number: 20200174641Abstract: An object of the present invention is to provide an information input device capable of realizing high-precision touch operations. The information input device includes a first surface for displaying input request information, a second surface for inputting input request information, a viewpoint calculator for calculating a viewpoint direction of an input person, and a coordinate corrector for correcting a position input to the second surface into a second position in response to the viewpoint direction of the input person and inputs the input request information on the first surface corresponding to the second position. The information input device further provides a storage device for holding distance information on distance between the first surface and the second surface.Type: ApplicationFiled: October 8, 2019Publication date: June 4, 2020Applicant: RENESAS ELECTRONICS CORPORATIONInventor: Kentarou NIIKURA
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Patent number: 10540565Abstract: A security camera system capable of reducing an amount of information without degrading useful information is provided. The security camera system includes a pixel array, an image signal processor that performs various types of image processing on raw data including each pixel value from the pixel array, and a pre-stage processing unit arranged between the pixel array and the image signal processor. The pre-stage processing unit includes an important area extraction circuit that receives raw data from the pixel array with respect to each frame and divides an effective pixel area of the frame into an important area and an unimportant area, and transmits the raw data of the important area to the image signal processor.Type: GrantFiled: April 17, 2018Date of Patent: January 21, 2020Assignee: Renesas Electronics CorporationInventor: Kentarou Niikura
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Patent number: 10297006Abstract: It is possible to stably reduce an amount of image data. An image processing system includes an image transmitting apparatus and an image receiving apparatus. The image transmitting apparatus includes an image reducing unit that reduces the size of an input image to generate a reduced image, a determining unit that determines, when the reduced image is enlarged to the size of the input image, an enlargement parameter where a difference from the input image becomes minimum and a transmitting unit that transmits the reduced image and the enlargement parameter. The image receiving apparatus includes a receiving unit that receives the reduced image and the enlargement parameter from the image transmitting apparatus and an image restoring unit that enlarges the reduced image using the enlargement parameter to generate a restored image.Type: GrantFiled: March 23, 2017Date of Patent: May 21, 2019Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Kentarou Niikura, Kazuhiko Takami, Kazuhiro Sugiyama
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Publication number: 20180341827Abstract: A security camera system capable of reducing an amount of information without degrading useful information is provided. The security camera system includes a pixel array, an image signal processor that performs various types of image processing on raw data including each pixel value from the pixel array, and a pre-stage processing unit arranged between the pixel array and the image signal processor. The pre-stage processing unit includes an important area extraction circuit that receives raw data from the pixel array with respect to each frame and divides an effective pixel area of the frame into an important area and an unimportant area, and transmits the raw data of the important area to the image signal processor.Type: ApplicationFiled: April 17, 2018Publication date: November 29, 2018Inventor: Kentarou NIIKURA
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Publication number: 20170301061Abstract: It is possible to stably reduce an amount of image data. An image processing system includes an image transmitting apparatus and an image receiving apparatus. The image transmitting apparatus includes an image reducing unit that reduces the size of an input image to generate a reduced image, a determining unit that determines, when the reduced image is enlarged to the size of the input image, an enlargement parameter where a difference from the input image becomes minimum and a transmitting unit that transmits the reduced image and the enlargement parameter. The image receiving apparatus includes a receiving unit that receives the reduced image and the enlargement parameter from the image transmitting apparatus and an image restoring unit that enlarges the reduced image using the enlargement parameter to generate a restored image.Type: ApplicationFiled: March 23, 2017Publication date: October 19, 2017Inventors: Kentarou NIIKURA, Kazuhiko Takami, Kazuhiro Sugiyama
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Patent number: 8682068Abstract: A representative pixel value calculation unit (120) divides an image represented by raw data (D0) into a plurality of blocks and calculates representative pixel values (S) for each block. A detection unit (130) detects an object block which is a block including a blown-out highlight or a blocked-up shadow, from among the plurality of blocks. A B-detection unit (134) of the detection unit (130) performs a first detection processing for obtaining one of a difference between a color represented by the representative pixel values and gray, and a value that can approximately represent the difference, as a characteristic value, and for detecting, as the object block, a block in which the characteristic value is equal to or smaller than a first threshold. Consequently, blown-out highlights or blocked-up shadows included in an image can be detected at higher speed, and the omission of detection can be prevented.Type: GrantFiled: January 13, 2010Date of Patent: March 25, 2014Assignee: Renesas Electronics CorporationInventor: Kentarou Niikura
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Patent number: 8638373Abstract: An imaging device includes an imaging element which obtains an image, and an imaging sensor processing unit which resets an exposure of the imaging element by a feedback control based on an image data obtained by the imaging element. The imaging sensor processing unit continuously executes, by pipeline processing, the following processing of setting an exposure time of the imaging element in a first frame just after start-up of the imaging device, making the imaging element accumulate light with an exposure time set at a former frame in a second frame, and outputting the image data by applying a gain set by the second frame in a third frame.Type: GrantFiled: October 26, 2010Date of Patent: January 28, 2014Assignee: Renesas Electronics CorporationInventor: Kentarou Niikura
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Publication number: 20120320233Abstract: An imaging apparatus includes an imaging sensor, a control unit that instructs the imaging sensor to capture a first picture with a first charge accumulation time based on a light source having a first frequency and to capture a second picture with a second charge accumulation time based on a light source having a second frequency different from the first frequency, and a difference picture generation unit that generates a difference picture by using the first and second pictures.Type: ApplicationFiled: August 27, 2012Publication date: December 20, 2012Applicant: RENESAS ELECTRONICS CORPORATIONInventor: Kentarou NIIKURA
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Patent number: 8279303Abstract: An exposure control unit 15 controls a charge accumulation time for a CMOS sensor 10. The CMOS sensor 10 captures an image P1 with a charge accumulation time T1 and an image P2 with a charge accumulation time T2. The charge accumulation time T1 does not cause a flicker in an image under a light source blinking at a first blink cycle. The charge accumulation time T2 is different from the charge accumulation time T1. A difference image generation unit 17 generates a difference image DP that emphasizes to show a difference in luminance of the images P1 and P2. A flicker detection unit 18 detects a flicker occurrence in the image P2 based on a difference in luminance between P1 and P2 appearing in the difference image DP.Type: GrantFiled: September 27, 2007Date of Patent: October 2, 2012Assignee: Renesas Electronics CorporationInventor: Kentarou Niikura
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Publication number: 20120229671Abstract: An imaging apparatus including an imaging sensor, a control unit that instructs the imaging sensor to capture a first image with a first charge accumulation time and to capture a second image with a second charge accumulation time different from the first charge accumulation time, under a light source blinking at a first blink cycle, and a flicker detection unit that detects a flicker occurrence in the first or second image based on a difference in luminance between the first image and the second image. The imaging sensor captures the first image and the second image at a same shutter speed.Type: ApplicationFiled: April 25, 2012Publication date: September 13, 2012Applicant: RENESAS ELECTRONICS CORPORATIONInventor: Kentarou NIIKURA
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Publication number: 20110096192Abstract: An imaging device includes an imaging element which obtains an image, and an imaging sensor processing unit which resets an exposure of the imaging element by a feedback control based on an image data obtained by the imaging element. The imaging sensor processing unit continuously executes, by pipeline processing, the following processing of setting an exposure time of the imaging element in a first frame just after start-up of the imaging device, making the imaging element accumulate light with an exposure time set at a former frame in a second frame, and outputting the image data by applying a gain set by the second frame in a third frame.Type: ApplicationFiled: October 26, 2010Publication date: April 28, 2011Applicant: RENESAS ELECTRONICS CORPORATIONInventor: Kentarou NIIKURA
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Publication number: 20100215260Abstract: A representative pixel value calculation unit (120) divides an image represented by raw data (D0) into a plurality of blocks and calculates representative pixel values (S) for each block. A detection unit (130) detects an object block which is a block including a blown-out highlight or a blocked-up shadow, from among the plurality of blocks. A B-detection unit (134) of the detection unit (130) performs a first detection processing for obtaining one of a difference between a color represented by the representative pixel values and gray, and a value that can approximately represent the difference, as a characteristic value, and for detecting, as the object block, a block in which the characteristic value is equal to or smaller than a first threshold. Consequently, blown-out highlights or blocked-up shadows included in an image can be detected at higher speed, and the omission of detection can be prevented.Type: ApplicationFiled: January 13, 2010Publication date: August 26, 2010Applicant: NEC ELECTRONICS CORPORATIONInventor: Kentarou Niikura
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Patent number: 7773825Abstract: An image stabilization apparatus of the present invention includes a detection unit which detects an amount of an image blur between a plurality of image data, an evaluation unit which selects at least one image data to use in correcting image blur from the plurality of image data according to a result of the detection of the amount of image blur, and a correction unit which generates image data with its image blur corrected using the image data selected by the evaluation unit.Type: GrantFiled: November 1, 2006Date of Patent: August 10, 2010Assignee: NEC Electronics CorporationInventors: Kentarou Niikura, Kazuhiko Takami, Takashi Nishida, Akitaka Oya
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Publication number: 20100013953Abstract: An exposure control unit 15 controls a charge accumulation time for a CMOS sensor 10. The CMOS sensor 10 captures an image P1 with a charge accumulation time T1 and an image P2 with a charge accumulation time T2. The charge accumulation time T1 does not cause a flicker in an image under a light source blinking at a first blink cycle. The charge accumulation time T2 is different from the charge accumulation time T1. A difference image generation unit 17 generates a difference image DP that emphasizes to show a difference in luminance of the images P1 and P2. A flicker detection unit 18 detects a flicker occurrence in the image P2 based on a difference in luminance between P1 and P2 appearing in the difference image DP.Type: ApplicationFiled: September 27, 2007Publication date: January 21, 2010Inventor: Kentarou Niikura
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Publication number: 20070098291Abstract: An image stabilization apparatus of the present invention includes a detection unit which detects an amount of an image blur between a plurality of image data, an evaluation unit which selects at least one image data to use in correcting image blur from the plurality of image data according to a result of the detection of the amount of image blur, and a correction unit which generates image data with its image blur corrected using the image data selected by the evaluation unit.Type: ApplicationFiled: November 1, 2006Publication date: May 3, 2007Inventors: Kentarou Niikura, Kazuhiko Takami, Takashi Nishida, Akitaka Oya