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).

  • Patent number: 11455061
    Abstract: 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: Grant
    Filed: February 17, 2021
    Date of Patent: September 27, 2022
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Kentarou Niikura
  • Publication number: 20210165551
    Abstract: 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: Application
    Filed: February 17, 2021
    Publication date: June 3, 2021
    Inventor: Kentarou NIIKURA
  • Publication number: 20200174641
    Abstract: 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: Application
    Filed: October 8, 2019
    Publication date: June 4, 2020
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Kentarou NIIKURA
  • Patent number: 10540565
    Abstract: 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: Grant
    Filed: April 17, 2018
    Date of Patent: January 21, 2020
    Assignee: Renesas Electronics Corporation
    Inventor: Kentarou Niikura
  • Patent number: 10297006
    Abstract: 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: Grant
    Filed: March 23, 2017
    Date of Patent: May 21, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kentarou Niikura, Kazuhiko Takami, Kazuhiro Sugiyama
  • Publication number: 20180341827
    Abstract: 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: Application
    Filed: April 17, 2018
    Publication date: November 29, 2018
    Inventor: Kentarou NIIKURA
  • Publication number: 20170301061
    Abstract: 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: Application
    Filed: March 23, 2017
    Publication date: October 19, 2017
    Inventors: Kentarou NIIKURA, Kazuhiko Takami, Kazuhiro Sugiyama
  • Patent number: 8682068
    Abstract: 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: Grant
    Filed: January 13, 2010
    Date of Patent: March 25, 2014
    Assignee: Renesas Electronics Corporation
    Inventor: Kentarou Niikura
  • Patent number: 8638373
    Abstract: 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: Grant
    Filed: October 26, 2010
    Date of Patent: January 28, 2014
    Assignee: Renesas Electronics Corporation
    Inventor: Kentarou Niikura
  • Publication number: 20120320233
    Abstract: 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: Application
    Filed: August 27, 2012
    Publication date: December 20, 2012
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Kentarou NIIKURA
  • Patent number: 8279303
    Abstract: 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: Grant
    Filed: September 27, 2007
    Date of Patent: October 2, 2012
    Assignee: Renesas Electronics Corporation
    Inventor: Kentarou Niikura
  • Publication number: 20120229671
    Abstract: 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: Application
    Filed: April 25, 2012
    Publication date: September 13, 2012
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Kentarou NIIKURA
  • Publication number: 20110096192
    Abstract: 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: Application
    Filed: October 26, 2010
    Publication date: April 28, 2011
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Kentarou NIIKURA
  • Publication number: 20100215260
    Abstract: 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: Application
    Filed: January 13, 2010
    Publication date: August 26, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Kentarou Niikura
  • Patent number: 7773825
    Abstract: 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: Grant
    Filed: November 1, 2006
    Date of Patent: August 10, 2010
    Assignee: NEC Electronics Corporation
    Inventors: Kentarou Niikura, Kazuhiko Takami, Takashi Nishida, Akitaka Oya
  • Publication number: 20100013953
    Abstract: 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: Application
    Filed: September 27, 2007
    Publication date: January 21, 2010
    Inventor: Kentarou Niikura
  • Publication number: 20070098291
    Abstract: 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: Application
    Filed: November 1, 2006
    Publication date: May 3, 2007
    Inventors: Kentarou Niikura, Kazuhiko Takami, Takashi Nishida, Akitaka Oya