Patents by Inventor Hiroshi Tojo

Hiroshi Tojo 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: 11975652
    Abstract: A notification device is provided which decreases notifications that passengers find annoying. This notification device is provided with: a notification unit which detects an object that is approaching the vehicle and notifies a passenger of the approach of said object; a water detection unit which detects water present around the vehicle; and a notification control unit which controls the notification unit such that in the case that water has been detected by the water detection unit, the frequency of notifications is suppressed more than in the case that water is not detected.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: May 7, 2024
    Assignee: Isuzu Motors Limited
    Inventors: Tomokazu Tojo, Hiroshi Yano, Masahiro Seki
  • Publication number: 20220207904
    Abstract: An image processing apparatus includes a first detection unit configured to detect, from an image in which an object including a plurality of parts is captured, first feature points corresponding to the parts of the object, an acquisition unit configured to acquire a reliability indicating a likelihood that a position indicated by a feature point is a part corresponding to the feature point for each of the first feature points detected by the first detection unit, a second detection unit configured to detect a second feature point based on some of the first feature points for a part corresponding to a first feature point with the low reliability, and a determination unit configured to determine an area including the object based on some of the first feature points and the second feature point.
    Type: Application
    Filed: March 15, 2022
    Publication date: June 30, 2022
    Inventors: Hiroyuki Uchiyama, Hiroshi Tojo, Shinji Yamamoto
  • Patent number: 11087169
    Abstract: An image processing apparatus includes an image feature extraction unit configured to extract an image feature from an input image, a region extraction unit configured to extract a foreground region from the input image based on the image feature, an acquisition unit configured to acquire correction information based on the image feature, a correction unit configured to correct the foreground region using the correction information, an identification feature extraction unit configured to extract a feature for identification from the foreground region corrected by the correction unit, and an identification unit configured to identify an object in the input image based on the feature for the identification.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: August 10, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Uchiyama, Hiroshi Tojo, Kotaro Yano
  • Patent number: 11037014
    Abstract: With the present invention, it is possible to swiftly collect light source information for use when correcting color information of an object region in a captured image. A position in real space of an object included in a captured image is acquired, and light source information that corresponds to the acquired position is acquired. Color information of a region including the object in the captured image is corrected based on the acquired light source information.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: June 15, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroshi Tojo
  • Patent number: 10860846
    Abstract: An information processing apparatus includes a detecting unit, an extracting unit, a managing unit, and a deriving unit. The detecting unit detects an object from an image. The extracting unit extracts a feature amount of the object detected by the detecting unit. The managing unit manages an element in the object detected by the detecting unit in association with the feature amount of the object in the element. The deriving unit derives a reliability indicative of a certainty for identifying an object with respect to the feature amount of the element.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: December 8, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinji Yamamoto, Tomoya Honjo, Hiroshi Tojo
  • Patent number: 10762372
    Abstract: An image processing apparatus inputs a first and a second captured videos; extracts attribute values of image regions of background objects commonly included in the first and the second captured videos respectively; extracts attribute values of image regions of objects respectively included in the first and the second captured videos; derives a relative index of an attribute value of the image region of the object with reference to the attribute value of the image region of the background object with respect to the object included in each of the first and the second captured videos; and detects the same object included in the first and the second captured videos based on the index derived with respect to the object included in each of the first and the second captured videos.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 1, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Tojo, Kotaro Yano
  • Patent number: 10643096
    Abstract: There is provided with an image processing apparatus. An obtaining unit obtains a video with consecutive frame images. A dividing unit divides a frame image of interest into a plurality of divided regions by reference to information of divided regions previously stored in a storage unit. A determining unit determines whether or not a moving object is included in a divided region of interest in the frame image of interest. An updating unit switches whether or not to update information of the divided region of interest stored in the storage unit with information of the divided region of interest of the frame image of interest, according to whether or not a moving object is included in the divided region of interest in the frame image of interest.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: May 5, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Tojo, Masahiro Ariizumi
  • Patent number: 10514522
    Abstract: A lens drive unit that prevents an actuator from being inclined is provided. In the lens drive unit, when a lens frame is displaced in a direction orthogonal to a direction in which the actuator extends and contracts with respect to a base member by, for example, impact from an outside of the lens drive unit, a drive shaft of the actuator abuts on a first lateral wall and a column, so that the actuator is prevented from being inclined with respect to the base member.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: December 24, 2019
    Assignee: TDK CORPORATION
    Inventors: Masahiro Hosokawa, Naoki Yusa, Seiji Fukuoka, Mio Hamashima, Toshiki Maruyama, Hiroshi Tojo, Mitsunao Homma, Takuto Horii, Atsushi Ezawa, Tatsuya Taki
  • Patent number: 10506174
    Abstract: In order to restrain both a deterioration of identification of objects captured by respective capturing apparatuses connected via a network and an increase of a load of the network, a frame rate of the capturing apparatus (proximity camera) is raised according a timing when a person to be captured by the one capturing apparatuses is captured by the other capturing apparatus of performing the capturing next to the one capturing apparatus.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: December 10, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroshi Tojo
  • Patent number: 10438361
    Abstract: An image processing apparatus comprises a video input unit, a region division unit configured to divide an image acquired by the video input unit into a plurality of regions each including pixels of similar attributes, a feature extraction unit configured to extract a feature from each divided region, a background model storage unit configured to store a background model generated from a feature of a background in advance, and a feature comparison unit configured to compare the extracted feature with a feature in the background model and determine for each of the regions whether the region is the background.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: October 8, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroshi Tojo, Kotaro Yano, Tuan quang Pham
  • Patent number: 10429606
    Abstract: A lens drive unit that offers enhanced reliability in connection between an actuator electrode and an electric wire is provided. In the lens drive unit, an actuator has a weight housed in an holding portion of a base member and is thereby fixed in the base member. Electrodes on a lateral surface of the weight directly contact respective terminal electrodes on an inner lateral surface of the holding portion, so that an electrical connection is established therebetween. The arrangement enhances reliability in connection between the actuator electrodes and the terminal electrodes.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: October 1, 2019
    Assignee: TDK CORPORATION
    Inventors: Toshiki Maruyama, Naoki Yusa, Seiji Fukuoka, Masahiro Hosokawa, Mio Hamashima, Hiroshi Tojo, Mitsunao Homma, Takuto Horii, Atsushi Ezawa, Tatsuya Taki
  • Publication number: 20190220685
    Abstract: An image processing apparatus includes an image feature extraction unit configured to extract an image feature from an input image, a region extraction unit configured to extract a foreground region from the input image based on the image feature, an acquisition unit configured to acquire correction information based on the image feature, a correction unit configured to correct the foreground region using the correction information, an identification feature extraction unit configured to extract a feature for identification from the foreground region corrected by the correction unit, and an identification unit configured to identify an object in the input image based on the feature for the identification.
    Type: Application
    Filed: January 4, 2019
    Publication date: July 18, 2019
    Inventors: Hiroyuki Uchiyama, Hiroshi Tojo, Kotaro Yano
  • Publication number: 20190042869
    Abstract: An image processing apparatus inputs a first and a second captured videos; extracts attribute values of image regions of background objects commonly included in the first and the second captured videos respectively; extracts attribute values of image regions of objects respectively included in the first and the second captured videos; derives a relative index of an attribute value of the image region of the object with reference to the attribute value of the image region of the background object with respect to the object included in each of the first and the second captured videos; and detects the same object included in the first and the second captured videos based on the index derived with respect to the object included in each of the first and the second captured videos.
    Type: Application
    Filed: July 23, 2018
    Publication date: February 7, 2019
    Inventors: Hiroshi Tojo, Kotaro Yano
  • Publication number: 20190034715
    Abstract: An information processing apparatus includes a detecting unit, an extracting unit, a managing unit, and a deriving unit. The detecting unit detects an object from an image. The extracting unit extracts a feature amount of the object detected by the detecting unit. The managing unit manages an element in the object detected by the detecting unit in association with the feature amount of the object in the element. The deriving unit derives a reliability indicative of a certainty for identifying an object with respect to the feature amount of the element.
    Type: Application
    Filed: October 4, 2018
    Publication date: January 31, 2019
    Inventors: Shinji Yamamoto, Tomoya Honjo, Hiroshi Tojo
  • Patent number: 10181075
    Abstract: An information processing apparatus includes an evaluation unit configured to evaluate whether a partial region of a photographing range of an imaging unit is a region suitable for analysis processing to be performed based on feature quantities of an object, with reference to a track of the object in an image captured by the imaging unit, and an output control unit configured to control the information processing apparatus to output information reflecting an evaluation result obtained by the evaluation unit. Accordingly, the information processing apparatus can support a user to improve the accuracy of the analysis processing to be performed based on the feature quantities of the object.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: January 15, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Tojo, Tomoya Honjo, Shinji Yamamoto
  • Patent number: 10121068
    Abstract: An information processing apparatus includes a detecting unit, an extracting unit, a managing unit, and a deriving unit. The detecting unit detects an object from an image. The extracting unit extracts a feature amount of the object detected by the detecting unit. The managing unit manages an element in the object detected by the detecting unit in association with the feature amount of the object in the element. The deriving unit derives a reliability indicative of a certainty for identifying an object with respect to the feature amount of the element.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: November 6, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinji Yamamoto, Tomoya Honjo, Hiroshi Tojo
  • Publication number: 20180300579
    Abstract: With the present invention, it is possible to swiftly collect light source information for use when correcting color information of an object region in a captured image. A position in real space of an object included in a captured image is acquired, and light source information that corresponds to the acquired position is acquired. Color information of a region including the object in the captured image is corrected based on the acquired light source information.
    Type: Application
    Filed: April 16, 2018
    Publication date: October 18, 2018
    Inventor: Hiroshi Tojo
  • Patent number: 10079974
    Abstract: An image processing apparatus includes an imaging unit configured to capture an image, an extraction unit configured to extract a feature amount in each image region of a plurality of objects from the captured image, a determination unit configured to determine, based on the extracted feature amount, a type of a feature amount used for discriminating each of the plurality of objects and a resolution of an image used for extracting a feature amount of the determined type, an imaging control unit configured to control the imaging unit to output an image at the determined resolution, and an extraction control unit configured to control the extraction unit to extract a feature amount of the determined type from the image output at the determined resolution from the imaging unit.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: September 18, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroshi Tojo, Kotaro Yano
  • Patent number: 10074029
    Abstract: A detecting unit detects subjects from an image photographed by a first camera and an image photographed by a second camera different from the first camera, a deciding unit decides whether a first subject photographed by the first camera and a second subject photographed by the second camera are a same subject, and a generating unit generates color correction information based on information indicating color of plural sets of the subjects decided as the same subject by the deciding unit. Thus, it is possible to reduce a difference of color between plural cameras even in the case where the photographing ranges of the plural cameras do not overlap.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: September 11, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroshi Tojo
  • Publication number: 20180089529
    Abstract: There is provided with an image processing apparatus. An obtaining unit obtains a video with consecutive frame images. A dividing unit divides a frame image of interest into a plurality of divided regions by reference to information of divided regions previously stored in a storage unit. A determining unit determines whether or not a moving object is included in a divided region of interest in the frame image of interest. An updating unit switches whether or not to update information of the divided region of interest stored in the storage unit with information of the divided region of interest of the frame image of interest, according to whether or not a moving object is included in the divided region of interest in the frame image of interest.
    Type: Application
    Filed: September 21, 2017
    Publication date: March 29, 2018
    Inventors: Hiroshi Tojo, Masahiro Ariizumi