Patents by Inventor Keiichi Chono

Keiichi Chono 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).

  • Publication number: 20230065464
    Abstract: To provide a system, a method and the like for acquiring more images or more quickly focused images. A control device acquires information regarding a situation of a range captured by an imaging device, determines a mode according to an assumed situation of the range captured by the imaging device among a plurality of focusing modes, and transmits designation information specifying the determined mode to the imaging device. The imaging device receives the designation information from the control device, and captures an image using the mode specified by the received designation information.
    Type: Application
    Filed: November 8, 2022
    Publication date: March 2, 2023
    Applicant: NEC Corporation
    Inventors: Keiichi CHONO, Masato TSUKADA, Chisato FUNAYAMA, Ryuichi AKASHI, Yuka OGINO, Takashi SHIBATA, Shoji YACHIDA, Hiroshi IMAI, Emi KITAGAWA, Yasuhiko YOSHIDA, Yusuke MORI
  • Patent number: 11582461
    Abstract: A video encoding device for encoding video using inter prediction includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on a minimum inter-PU size (PA) and a CU size (PB) of the CU to be encoded. A video decoding device includes decoding control means for controlling an inter-PU partition of a CU to be decoded, based on the minimum inter-PU size (PA) and the size (PB) of the CU to be decoded.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: February 14, 2023
    Assignee: NEC CORPORATION
    Inventors: Kenta Senzaki, Yuzo Senda, Keiichi Chono, Hirofumi Aoki
  • Publication number: 20230040456
    Abstract: An authentication system according to one aspect of the present disclosure includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: track an object included in a video captured by a first capture device; detect a candidate for biometric authentication in the object being tracked; determine whether biometric authentication has been performed for the candidate based on a record of biometric authentication performed for the object being tracked; and perform the biometric authentication for the candidate based on a video of an authentication part of the candidate when the biometric authentication has not been performed for the candidate, the video of the authentication part being captured by a second capture device having a capture range including a part of a capture range of the first capture device.
    Type: Application
    Filed: October 17, 2022
    Publication date: February 9, 2023
    Applicant: NEC Corporation
    Inventors: Keiichi CHONO, Masato TSUKADA, Chisato FUNAYAMA, Ryuichi AKASHI, Yuka OGINO, Takashi SHIBATA, Shoji YACHIDA, Hiroshi IMAI, Emi KITAGAWA, Yasuhiko YOSHIDA, Yusuke MORI
  • Patent number: 11575900
    Abstract: In a video coding device, a generation unit generates the prediction error signal from an input image, a transformation unit transforms the prediction error signal depending on a color space selected from among the plurality of color spaces, an adaptive chroma quantization offset derivation unit derives an adaptive chroma quantization offset, which is a parameter for adjusting a quantization parameter of a chroma component, for each of the plurality of color spaces, a quantization unit generates a quantization coefficient image based on the prediction error signal or the transformed prediction error signal by the transformation means, and an inverse quantization unit inverse-quantizes the quantization coefficient image by using the adaptive chroma quantization offset for the selected color space.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: February 7, 2023
    Assignee: NEC CORPORATION
    Inventor: Keiichi Chono
  • Publication number: 20230029585
    Abstract: An iris recognition apparatus is provided with: an irradiating device that is capable of irradiating light to a target person to be recognized; an acquiring device that acquires a first image which imaged a first imaging range including at least a face of the target person; and a determining device that determines an irradiation mode of light irradiated from the irradiating device to the target person when imaging a second image including an area, which includes an eye of the target person, and corresponding to a second imaging range, which is narrower than the first imaging range, based on the first image.
    Type: Application
    Filed: June 26, 2019
    Publication date: February 2, 2023
    Applicant: NEC Corporation
    Inventors: Keiichi CHONO, Yuka Ogino, Ryuichi Akashi
  • Patent number: 11568681
    Abstract: The disclosure is inputting a first image obtained by capturing an object of authentication moving in a specific direction; inputting a second image at least for one eye obtained by capturing a right eye or a left eye of the object; determining whether the second image is of the left eye or the right eye of the object, based on information including the first image, and outputting a determination result associated with the second image as left/right information; comparing characteristic information relevant to the left/right information, the characteristic information being acquired from a memory that stores the characteristic information of a right eye and a left eye pertaining to object to be authenticated, with characteristic information associated with the left/right information, and calculating a verification score; and authenticating the object captured in the first image and the second image, based on the verification score, and outputting an authentication result.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: January 31, 2023
    Assignee: NEC CORPORATION
    Inventors: Takashi Shibata, Shoji Yachida, Chisato Funayama, Masato Tsukada, Yuka Ogino, Keiichi Chono, Emi Kitagawa, Yasuhiko Yoshida, Yusuke Mori
  • Publication number: 20230027196
    Abstract: The optical control apparatus includes a light source, a light collecting section, and an optical path control section. The light source emits light. The light collecting section collects the light emitted from the light source and illuminates the light onto an object.
    Type: Application
    Filed: December 16, 2019
    Publication date: January 26, 2023
    Applicant: NEC Corporation
    Inventors: Ryuichi Akashi, Ryo Yamakabe, Yuka Ogino, Takahiro Toizumi, Chisato Funayama, Keiichi Chono, Masato Tsukada
  • Patent number: 11539872
    Abstract: To provide a system, a method and the like for acquiring more images or more quickly focused images. A control device acquires information regarding a situation of a range captured by an imaging device, determines a mode according to an assumed situation of the range captured by the imaging device among a plurality of focusing modes, and transmits designation information specifying the determined mode to the imaging device. The imaging device receives the designation information from the control device, and captures an image using the mode specified by the received designation information.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: December 27, 2022
    Assignee: NEC CORPORATION
    Inventors: Keiichi Chono, Masato Tsukada, Chisato Funayama, Ryuichi Akashi, Yuka Ogino, Takashi Shibata, Shoji Yachida, Hiroshi Imai, Emi Kitagawa, Yasuhiko Yoshida, Yusuke Mori
  • Publication number: 20220392262
    Abstract: The disclosure is inputting a first image obtained by capturing an object of authentication moving in a specific direction; inputting a second image at least for one eye obtained by capturing a right eye or a left eye of the object; determining whether the second image is of the left eye or the right eye of the object, based on information including the first image, and outputting a determination result associated with the second image as left/right information; comparing characteristic information relevant to the left/right information, the characteristic information being acquired from a memory that stores the characteristic information of a right eye and a left eye pertaining to object to be authenticated, with characteristic information associated with the left/right information, and calculating a verification score; and authenticating the object captured in the first image and the second image, based on the verification score, and outputting an authentication result.
    Type: Application
    Filed: February 25, 2022
    Publication date: December 8, 2022
    Applicant: NEC Corporation
    Inventors: Takashi SHIBATA, Shoji Yachida, Chisato Funayama, Masato Tsukada, Yuka Ogino, Keiichi Chono, Emi Kitagawa, Yasuhiko Yoshida, Yusuke Mori
  • Publication number: 20220385927
    Abstract: The problem when the use range of images for use in intra-prediction is expanded is that the requirement for line buffer size increases depending on the range of expansion, and, in order to solve this problem, the use range of imaged for use in intra-prediction is adaptively controlled. The intra-prediction apparatus 100 of the present invention has, a control section 115 that controls, based on the relationship between the position of a candidate image for use in intra-prediction for a block to be processed and the position of the unit where the block to be processed belongs, the partial range for use for intra-prediction beyond the end portion of the unit in a predetermined direction in the use range of the image for use for intra-prediction to be equal to or less than a predetermined maximum range.
    Type: Application
    Filed: August 8, 2022
    Publication date: December 1, 2022
    Applicant: NEC Corporation
    Inventor: Keiichi CHONO
  • Patent number: 11509909
    Abstract: In a video decoding device, a quantization step size decoding unit calculates a quantization step size that controls a granularity of the inverse quantization by, based on an image prediction, selectively using a mean value of at least a quantization step size assigned to a leftwardly adjacent neighboring image block already decoded and a quantization step size assigned to a upwardly adjacent neighboring image block already decoded or a quantization step size assigned to an image block decoded immediately before.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: November 22, 2022
    Assignee: NEC CORPORATION
    Inventors: Hirofumi Aoki, Keiichi Chono, Yuzo Senda, Kenta Senzaki
  • Patent number: 11501570
    Abstract: An authentication system according to one aspect of the present disclosure includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: track an object included in a video captured by a first capture device; detect a candidate for biometric authentication in the object being tracked; determine whether biometric authentication has been performed for the candidate based on a record of biometric authentication performed for the object being tracked; and perform the biometric authentication for the candidate based on a video of an authentication part of the candidate when the biometric authentication has not been performed for the candidate, the video of the authentication part being captured by a second capture device having a capture range including a part of a capture range of the first capture device.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: November 15, 2022
    Assignee: NEC CORPORATION
    Inventors: Keiichi Chono, Masato Tsukada, Chisato Funayama, Ryuichi Akashi, Yuka Ogino, Takashi Shibata, Shoji Yachida, Hiroshi Imai, Emi Kitagawa, Yasuhiko Yoshida, Yusuke Mori
  • Publication number: 20220360705
    Abstract: An imaging system is provided with: a first imaging apparatus (2) that captures an image of an imaging target (T, TP) that is located at a first point (P1); a second imaging apparatus (3) a focus position of which is set at a second point (P2) that is located at a forward side along a moving direction of the imaging target than the first point; and a control apparatus (6) that controls the second imaging apparatus to capture an image of the imaging target that is located at the second point on the basis of the image (200) captured by the first imaging apparatus.
    Type: Application
    Filed: June 18, 2019
    Publication date: November 10, 2022
    Applicant: NEC Corporation
    Inventors: Yuka OGINO, Keiichi CHONO
  • Patent number: 11496749
    Abstract: In a video decoding device, a quantization step size decoding unit calculates a quantization step size that controls a granularity of the inverse quantization by, based on an image prediction, selectively using a mean value of at least a quantization step size assigned to a leftwardly adjacent neighboring image block already decoded and a quantization step size assigned to a upwardly adjacent neighboring image block already decoded or a quantization step size assigned to an image block decoded immediately before.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: November 8, 2022
    Assignee: NEC CORPORATION
    Inventors: Hirofumi Aoki, Keiichi Chono, Yuzo Senda, Kenta Senzaki
  • Patent number: 11483571
    Abstract: In a video decoding device, a quantization step size decoding unit calculates a quantization step size that controls a granularity of the inverse quantization by, based on an image prediction, selectively using a mean value of at least a quantization step size assigned to a leftwardly adjacent neighboring image block already decoded and a quantization step size assigned to a upwardly adjacent neighboring image block already decoded or a quantization step size assigned to an image block decoded immediately before.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: October 25, 2022
    Assignee: NEC CORPORATION
    Inventors: Hirofumi Aoki, Keiichi Chono, Yuzo Senda, Kenta Senzaki
  • Publication number: 20220294965
    Abstract: A control device according to an aspect of the present disclosure includes: at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: acquire an input image including an eye region that is a region of an eye part; estimate illuminance of the eye part from the acquired input image; and determine a light amount of illumination of visible light with which the eye part is irradiated in such a way that a pupil size of the eye part satisfies a size condition based on an illuminance size relationship that is a relationship between the illuminance and the pupil size.
    Type: Application
    Filed: September 4, 2019
    Publication date: September 15, 2022
    Applicant: NEC Corporation
    Inventors: Masato TSUKADA, Chisato FUNAYAMA, Yuka OGINO, Hiroshi IMAI, Keiichi CHONO, Emi KITAGAMA, Yasuhiko YOSHIDA, Hiroshi YAMADA, Shoji YACHIDA, Takashi SHIBATA
  • Publication number: 20220270724
    Abstract: A first-aid information provision system of the example embodiments includes: an information display device that includes first capture means for capturing an iris image, code acquisition means for acquiring a code associated with the captured iris image, and code display means for displaying the acquired code; and an information output device that includes second capture means for imaging the code displayed by the information display device, first-aid information acquisition means for acquiring first-aid information about an individual associated with the iris image by using the imaged code, and first-aid information output means for outputting the first-aid information.
    Type: Application
    Filed: February 25, 2022
    Publication date: August 25, 2022
    Inventors: Takashi SHIBATA, Shoji Yachida, Chisato Funayama, Masato Tsukada, Yuka Ogino, Keiichi Chono, Emi Kitagawa, Yasuhiko Yoshida, Yusuke Mori, Toru Takahashi
  • Publication number: 20220270406
    Abstract: An iris recognition apparatus for performing recognition of a target person based on an iris pattern of the target person, is provided with: an imaging device that performs an imaging processing for sequentially outputting imaged images while changing a focal position; and a determining device that starts a focusing determination for determining whether or not an image is a focused image before the imaging device completes the imaging processing.
    Type: Application
    Filed: June 25, 2019
    Publication date: August 25, 2022
    Applicant: NEC Corporation
    Inventors: Keiichi CHONO, Masato Tsukada, Chisato Funayama, Takahiro Toizumi, Yuka Ogino, Ryuichi Akashi, Ryo Yamakabe
  • Publication number: 20220254193
    Abstract: The disclosure is inputting a first image obtained by capturing an object of authentication moving in a specific direction; inputting a second image at least for one eye obtained by capturing a right eye or a left eye of the object; determining whether the second image is of the left eye or the right eye of the object, based on information including the first image, and outputting a determination result associated with the second image as left/right information; comparing characteristic information relevant to the left/right information, the characteristic information being acquired from a memory that stores the characteristic information of a right eye and a left eye pertaining to object to be authenticated, with characteristic information associated with the left/right information, and calculating a verification score; and authenticating the object captured in the first image and the second image, based on the verification score, and outputting an authentication result.
    Type: Application
    Filed: February 25, 2022
    Publication date: August 11, 2022
    Applicant: NEC Corporation
    Inventors: Takashi SHIBATA, Shoji YACHIDA, Chisato FUNAYAMA, Masato TSUKADA, Yuka OGINO, Keiichi CHONO, Emi KITAGAWA, Yasuhiko YOSHIDA, Yusuke MORI
  • Patent number: 11412261
    Abstract: A video decoding device includes a demultiplexer which demultiplexes a video bitstream including video data of an encoded slice, Supplemental-Enhancement-Information having first information indicating a leading picture in gradual refresh, and Supplemental-Enhancement-Information having second information indicating segments where a refresh has completed in a current picture; an extractor which extracts the second information from a message which is part of the demultiplexed Supplemental-Enhancement-Information; and a video decoder which decodes image data from the demultiplexed video bitstream by using at least inter prediction, wherein the video decoder starts decoding based on the leading picture in gradual refresh.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: August 9, 2022
    Assignee: NEC CORPORATION
    Inventors: Hirofumi Aoki, Keiichi Chono, Masato Tsukada