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: 20220051012
    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: September 27, 2018
    Publication date: February 17, 2022
    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
  • Publication number: 20220044014
    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: September 27, 2018
    Publication date: February 10, 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: 20220027647
    Abstract: In order to determine whether a color contact lens is being worn on an iris, this image processing device includes: a first feature amount calculation means for using an image of the iris in a first wavelength band to calculate a first feature amount in the first wavelength band, said iris being used in authentication of a person; a second feature amount calculation means for using an image of the iris in a second wavelength band to calculate a second feature amount in the second wavelength band; and a covering determination means for determining, on the basis of the first feature amount and the second feature amount, whether a color contact lens is present on the iris.
    Type: Application
    Filed: December 14, 2018
    Publication date: January 27, 2022
    Applicant: NEC Corporation
    Inventors: Masato TSUKADA, Chisato FUNAYAMA, Yuka OGINO, Hiroshi IMAI, Keiichi CHONO, Emi KITAGAWA, Yasuhiko YOSHIDA, Hiroshi YAMADA, Takashi SHIBATA, Shoji YACHIDA, Ryuichi AKASHI
  • Publication number: 20220004609
    Abstract: An authentication device includes an image acquisition unit, an identification unit, and an authentication unit. The image acquisition unit acquires an image of an eye of a subject. The identification unit identifies the colored pattern of a colored contact lens worn by the subject by comparing a reference image with the image of the eye. The authentication unit identifies the subject, using a feature in a region other than a colored region of the colored pattern in the iris region of the eye.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 6, 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: 20220005203
    Abstract: In order to detect the foreground without being affected by reflected light from the shadow of an object or the background and so on, in both indoor and outdoor environments, the image processing method includes a step of generating first foreground likelihood from a visible light image, a step of generating second foreground likelihood from a depth image in which the same object is captured as that in the visible light image, a step of generating reliability of the depth image using at least the visible light image and the depth image, and a step of determining foreground likelihood of the object based on the first foreground likelihood and the second foreground likelihood, using the reliability of the depth image as a weight.
    Type: Application
    Filed: November 19, 2018
    Publication date: January 6, 2022
    Applicant: NEC Corporation
    Inventors: Ryuichi AKASHI, Keiichi CHONO, Masato TSUKADA, Chisato FUNAYAMA, Takahiro TOIZUMI, Yuka OGINO
  • Publication number: 20210409396
    Abstract: Provided are a system, a method, and the like which contribute to more reliably and smoothly providing information relating to an authentication result to a person who has been subjected to authentication. An information provision system according to an embodiment of the present invention comprises: an authentication unit which authenticates an authentication subject, who is to be subjected to authentication, using a captured image of the authentication subject; a determination unit which, in accordance with information about the authentication subject or the conditions of the authentication subject, determines the transmission destination to which information relating to the authentication result is to be transmitted in order to notify the authentication subject of the authentication result; and a transmission unit which transmits the information to the determined transmission destination.
    Type: Application
    Filed: November 21, 2018
    Publication date: December 30, 2021
    Applicant: NEC Corporation
    Inventors: Chisato FUNAYAMA, Masato TSUKADA, Keiichi CHONO, Yuka OGINO, Hiroshi IMAI, Shoji YACHIDA, Takashi SHIBATA
  • Publication number: 20210406567
    Abstract: The disclosure is detecting an authentication target who is moving in a predetermined direction in a video; inputting a first image in which an entire body of the target; calculating characteristic information from an image of the entire body in the first image, comparing the calculated characteristic information with characteristic information of the entire body stored in first memory that stores characteristic information of entire bodies of targets, and extracting candidate information of the targets from the first memory based on a first authentication result; inputting a second image in which an iris of the target; and comparing characteristic information of irises stored in second memory that stores the characteristic information of the irises of targets with characteristic information of an iris from the second image, calculating a verification score, executing second authentication on the target in the second image based on the verification score, and outputting an authentication result.
    Type: Application
    Filed: September 28, 2018
    Publication date: December 30, 2021
    Applicant: NEC Corporation
    Inventors: Takashi SHIBATA, Shoji YACHIDA, Chisato FUNAYAMA, Masato TSUKADA, Yuka OGINO, Keiichi CHONO, Emi KITAGAWA, Yasuhiko YOSHIDA, Yusuke MORI
  • Publication number: 20210406903
    Abstract: An accounting system according to the present invention include: an information display device including a first memory; and at least one first processor coupled to the first memory. The first processor performs first operations. The first operations includes: causing a first camera to image a person, and causes a display to display a code based on physical characteristics peculiar to the imaged person. An information processing device includes a second memory; and at least one second processor coupled to the second memory. The second processor performs second operations. The second operations includes: causing a second camera to image the code displayed by the information display device, acquiring accounting information of the person using the imaged code, and executing accounting processing using the accounting information.
    Type: Application
    Filed: October 5, 2018
    Publication date: December 30, 2021
    Applicant: NEC Corporation
    Inventors: Takashi SHIBATA, Shoji YACHIDA, Chisato FUNAYAMA, Masato TSUKADA, Yuka OGINO, Keiichi CHONO, Emi KITAGAWA, Yasuhiko YOSHIDA, Yusuke MORI, Toru TAKAHASHI
  • Publication number: 20210400202
    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: September 28, 2018
    Publication date: December 23, 2021
    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
  • Publication number: 20210358580
    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: October 15, 2018
    Publication date: November 18, 2021
    Applicant: NEC Corporation
    Inventors: Takashi SHIBATA, Shoji YACHIDA, Chisaio FUNAYAMA, Masaio TSUKADA, Yuka OGINO, Keiichi CHONO, Emi KITAGAWA, Yasuhiko YOSHIDA, Yusuke MORI, Toru TAKAHASHI
  • Publication number: 20210350126
    Abstract: The disclosure is inputting a first image captured an image of an authentication target; inputting a second image captured an image of a right eye or a left eye of the target; determining whether the second image is of a left eye or a right eye of the target based on information including the first image, and outputting a determination result as left/right information in association with the second image; detecting an overlap between a region including the second image and a predetermined region in the first image; calculating a verification score by comparing characteristic information that are related to the left/right information with iris characteristic information calculated from the second image, and calculating a first weighted verification score obtained by weighting the verification score with a detection result; and authenticating a target in the second image based on the first weighted verification score, and outputting an authentication result.
    Type: Application
    Filed: October 16, 2018
    Publication date: November 11, 2021
    Applicant: NEC Corporation
    Inventors: Takashi SHIBATA, Shoji YACHIDA, Chisato FUNAYAMA, Masato TSUKADA, Yuka OGINO, Keiichi CHONO, Emi KITAGAWA, Yasuhiko YOSHIDA, Yusuke MORI
  • Publication number: 20210350158
    Abstract: An information providing device 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: receive a face image; determine whether a person in the face image is unsuitable for iris data acquisition based on the face image; and output information based on determining that the person is unsuitable for the iris data acquisition when the person is determined to be unsuitable for the iris data acquisition.
    Type: Application
    Filed: September 18, 2019
    Publication date: November 11, 2021
    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
  • Publication number: 20210266553
    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: Application
    Filed: May 10, 2021
    Publication date: August 26, 2021
    Inventor: Keiichi CHONO
  • Patent number: 11039141
    Abstract: A video coding device is able to select, from among a plurality of color spaces, a color space of a prediction error signal in coded block units, and includes: an adaptive chroma quantization offset derivation unit for deriving a quantization offset for each color space; and an inverse quantization unit for inverse-quantizing a quantization coefficient image by using the chroma quantization offset for each color space.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: June 15, 2021
    Assignee: NEC CORPORATION
    Inventor: Keiichi Chono
  • Publication number: 20210136412
    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: February 14, 2019
    Publication date: May 6, 2021
    Applicant: NEC Corporation
    Inventor: Keiichi CHONO
  • Publication number: 20210029363
    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: Application
    Filed: October 8, 2020
    Publication date: January 28, 2021
    Applicant: NEC CORPORATION
    Inventors: Kenta SENZAKI, Yuzo SENDA, Keiichi CHONO, Hirofumi AOKI
  • Publication number: 20210021835
    Abstract: A video encoding device includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of an encoded image block contained in the image block having the predetermined area. A video decoding device includes decoding control means for controlling an inter-PU partition type of a CU to be decoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of a decoded image block contained in the image block having the predetermined area.
    Type: Application
    Filed: October 1, 2020
    Publication date: January 21, 2021
    Applicant: NEC CORPORATION
    Inventors: Kenta SENZAKI, Yuzo SENDA, Keiichi CHONO, Hirofumi AOKI
  • Publication number: 20200366904
    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: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Applicant: NEC Corporation
    Inventors: Hirofumi Aoki, Keiichi Chono, Yuzo Senda, Kenta Senzaki
  • Publication number: 20200366905
    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: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Applicant: NEC CORPORATION
    Inventors: Hirofumi AOKI, Keiichi CHONO, Yuzo SENDA, Kenta SENZAKI
  • Publication number: 20200366903
    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: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Applicant: NEC CORPORATION
    Inventors: Hirofumi Aoki, Keiichi Chono, Yuzo Senda, Kenta Senzaki