Patents by Inventor Naoto Akira

Naoto Akira 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: 20230368508
    Abstract: An area extraction method includes acquiring a captured image, generating a feature map using the captured image, extracting a candidate bounding box indicating an area in which an object exists in the captured image using the feature map, a segmentation step of generating a mask that is a bounding box indicating the area in which the object exists using the feature map and the candidate bounding box, acquiring input information which is input by a user regarding the object in the captured image, extracting the candidate bounding box using the feature map and the input information, and updating the feature map using the candidate bounding box extracted in the area estimation step and the input information. Wherein the candidate bounding box can be extracted further using the mask generated in the segmentation step, and the feature map can be updated using the mask generated in the segmentation step.
    Type: Application
    Filed: March 1, 2023
    Publication date: November 16, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Ziwei DENG, Naoto AKIRA, Tomoaki YOSHINAGA
  • Patent number: 11587301
    Abstract: Provided are: an amodal segmentation unit that generates a set of first amodal masks indicating a probability that a particular pixel belongs to a relevant object for each of objects, with respect to an input image in which a plurality of the objects partially overlap; an overlap segmentation unit that generates an overlap mask corresponding only to an overlap region where the plurality of objects overlap in the input image based on an aggregate mask obtained by combining the set of first amodal masks generated for each of the objects and a feature map generated based on the input image; and an amodal mask correction unit that generates and outputs a second amodal mask, which includes an annotation label indicating a category of each of the objects corresponding to a relevant pixel, for each of pixels in the input image using the overlap mask and the aggregate mask.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: February 21, 2023
    Assignee: HITACHI SOLUTIONS, LTD.
    Inventors: Ziwei Deng, Quan Kong, Naoto Akira, Tomokazu Murakami
  • Publication number: 20230043386
    Abstract: An alert output apparatus is configured to hold: image information indicating one or more inspection objects included in a photographic object of an image for which determination is to be executed; alert target item information indicating an alert target item; and co-occurrence item information indicating alert co-occurrence items each determined in advance as an item to be included in the image at the same time as the alert target item, and to output alert when determining that at least one inspection object out of the one or more inspection objects matches to the alert target item and satisfies a given condition, and when determining that no inspection object out of the one or more inspection objects matches to the alert target item but at least one inspection object out of the one or more inspection objects matches to at least one of the alert co-occurrence items.
    Type: Application
    Filed: August 28, 2020
    Publication date: February 9, 2023
    Applicant: Hitachi, Ltd
    Inventors: Toru YASUMURA, Noboru OZEKI, Satoko IWASAWA, Daisuke MATSUBARA, Koh KAJII, Naoto AKIRA, Junichi KIMURA, Hideki OKITA
  • Patent number: 11482001
    Abstract: In a current image processing environment, providing feedback for a user operation is slow, and a user cannot confirm the result of the operation in real time. Thus, the user interrupts the operation every time the user confirms the feedback, and a time period for performing image processing is long. An image processing device includes a guidance information generator. The guidance information generator acquires trajectory information to be used to segment an image object on an image input from a user, generates guidance information indicating a segmentation region desired by the user based on the trajectory information, and presents the segmentation region based on a user's intention in real-time. The guidance information generator provides a function of smoothly continuously segmenting an image object.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: October 25, 2022
    Assignee: HITACHI, LTD.
    Inventors: Ziwei Deng, Quan Kong, Naoto Akira, Tomokazu Murakami
  • Patent number: 11367219
    Abstract: A video analysis apparatus is connected to an image capturing apparatus including a plurality of cameras, in which the video analysis apparatus, for a plurality of persons in images captured by the cameras, tracks at least one of the plurality of persons, detects a plurality of parts of the tracked person, and on the basis of information defining scores used to determine a best shot of each of the parts, computes a score for the part for each of frames of videos from security cameras, compares, for each of the parts, the scores for each part computed for each of the frames to determine a best shot of each of the parts, stores, for each of the parts, a feature value in association with the part, and compares the feature values of each of the parts of the plurality of persons to determine identity of the persons.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: June 21, 2022
    Assignee: HITACHI, LTD.
    Inventors: Naoto Akira, Atsushi Hiroike, Tsutomu Imada, Hiromu Nakamae
  • Patent number: 11182637
    Abstract: Information on an area specified as having an article is acquired, synthesis is performed with X-ray transmission amounts acquired by a plurality of sensors in the same area (for example, the same background and the same luggage), and material information is estimated from the X-ray transmission amount synthesized again to generate a color image. As a synthesis target, for example, combination information of articles accumulated during operation is used, and articles having many combinations are used as combination of articles included in the same luggage. A color image generated by synthesis is used as learning data.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: November 23, 2021
    Assignee: HITACHI SOLUTIONS, LTD.
    Inventor: Naoto Akira
  • Publication number: 20210264636
    Abstract: A video analysis apparatus is connected to an image capturing apparatus including a plurality of cameras, in which the video analysis apparatus, for a plurality of persons in images captured by the cameras, tracks at least one of the plurality of persons, detects a plurality of parts of the tracked person, and on the basis of information defining scores used to determine a best shot of each of the parts, computes a score for the part for each of frames of videos from security cameras, compares, for each of the parts, the scores for each part computed for each of the frames to determine a best shot of each of the parts, stores, for each of the parts, a feature value in association with the part, and compares the feature values of each of the parts of the plurality of persons to determine identity of the persons.
    Type: Application
    Filed: June 11, 2019
    Publication date: August 26, 2021
    Applicant: HITACHI, LTD.
    Inventors: Naoto AKIRA, Atsushi HIROIKE, Tsutomu IMADA, Hiromu NAKAMAE
  • Publication number: 20210248408
    Abstract: Provided are: an amodal segmentation unit that generates a set of first amodal masks indicating a probability that a particular pixel belongs to a relevant object for each of objects, with respect to an input image in which a plurality of the objects partially overlap; an overlap segmentation unit that generates an overlap mask corresponding only to an overlap region where the plurality of objects overlap in the input image based on an aggregate mask obtained by combining the set of first amodal masks generated for each of the objects and a feature map generated based on the input image; and an amodal mask correction unit that generates and outputs a second amodal mask, which includes an annotation label indicating a category of each of the objects corresponding to a relevant pixel, for each of pixels in the input image using the overlap mask and the aggregate mask.
    Type: Application
    Filed: October 15, 2020
    Publication date: August 12, 2021
    Applicant: HITACHI SOLUTIONS, LTD.
    Inventors: Ziwei DENG, Quan KONG, Naoto AKIRA, Tomokazu MURAKAMI
  • Publication number: 20210239875
    Abstract: An alert output timing control apparatus is configured to hold an analysis target image and time information indicating a period of time time to be spent until alert is output, and output the analysis target image to a display apparatus. When the analysis target image is input to a model and it is determined that an alert target object is included in a photographic object of the analysis target image, the alert output timing control apparatus obtains a period of time time from the time information and performs control so that alert is output at timing that arrives when the obtained period of time time elapses since given timing after the analysis target image is output.
    Type: Application
    Filed: November 17, 2020
    Publication date: August 5, 2021
    Inventors: Noboru OZEKI, Satoko HINOMIZU, Toru YASUMURA, Daisuke MATSUBARA, Koh KAJII, Naoto AKIRA, Junichi KIMURA, Hideki OKITA
  • Patent number: 10963736
    Abstract: Provided is technique of object recognition that can accurately recognize an object. An object recognition apparatus (i) generates property data that highlights a specific property based on target data, (ii) extracts a discrimination-use feature amount used for discrimination of each piece of the property data, (iii) calculates discrimination information used for discrimination of the property data, (iv) extracts a reliability feature amount used for estimation of reliability of the discrimination information calculated for each piece of the property data, (v) estimates the reliability of the discrimination information, (vi) generates synthesized information acquired by synthesizing the discrimination information calculated for each piece of the property data and the reliability calculated for each piece of the property data, and (vii) performs processing related to the object recognition.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: March 30, 2021
    Assignee: HITACHI, LTD.
    Inventors: Quan Kong, Yuki Watanabe, Naoto Akira, Daisuke Matsubara
  • Publication number: 20210042561
    Abstract: Information on an area specified as having an article is acquired, synthesis is performed with X-ray transmission amounts acquired by a plurality of sensors in the same area (for example, the same background and the same luggage), and material information is estimated from the X-ray transmission amount synthesized again to generate a color image. As a synthesis target, for example, combination information of articles accumulated during operation is used, and articles having many combinations are used as combination of articles included in the same luggage. A color image generated by synthesis is used as learning data.
    Type: Application
    Filed: March 10, 2020
    Publication date: February 11, 2021
    Applicant: Hitachi Solutions, Ltd.
    Inventor: Naoto AKIRA
  • Publication number: 20200311575
    Abstract: The online recognition apparatus includes a feature amount extraction unit that extracts a feature amount of input data, an identification result prediction unit that predicts an identification result based on the extracted feature amount, a prediction result evaluation unit that determines necessity of labeling from the predicted identification result unit, a correct answer assigning unit that assigns a correct answer to input data online from the determination result, a generator update unit that updates a parameter of a generator based on the input data with the correct answer, a pseudo-learning data generation unit that establishes a generator based on the parameter of the updated generator and generates pseudo-learning data, and an identifier update unit that online updates a parameter of an identifier prepared in advance based on the input data with the correct answer and the pseudo-learning data. The updated identifier is updated as a new identification result prediction unit.
    Type: Application
    Filed: August 9, 2018
    Publication date: October 1, 2020
    Inventors: Quan KONG, Yuki WATANABE, Naoto AKIRA, Tomokazu MURAKAMI
  • Publication number: 20200302173
    Abstract: In a current image processing environment, providing feedback for a user operation is slow, and a user cannot confirm the result of the operation in real time. Thus, the user interrupts the operation every time the user confirms the feedback, and a time period for performing image processing is long. An image processing device includes a guidance information generator. The guidance information generator acquires trajectory information to be used to segment an image object on an image input from a user, generates guidance information indicating a segmentation region desired by the user based on the trajectory information, and presents the segmentation region based on a user's intention in real-time. The guidance information generator provides a function of smoothly continuously segmenting an image object.
    Type: Application
    Filed: February 24, 2020
    Publication date: September 24, 2020
    Applicant: Hitachi, Ltd.
    Inventors: Ziwei Deng, Quan Kong, Naoto Akira, Tomokazu Murakami
  • Patent number: 10657171
    Abstract: An image search device searching an image from an image database storing a recorded image, one or more types of feature values, and propagation information that indicates a link between a same type of the feature values of the recorded image, the device acquires a first image and the one or more types of feature values of the first image, records the first image and the feature values in the image database, calculates a propagation intensity indicating similarity or sameness between the types of feature values of the recorded image and the types of feature values of the first image, and includes in the propagation information a link between the types of feature values of the first image and the types of feature values of the recorded image for which the propagation intensity between the types of feature values of the recorded image and the types of feature values of the first image is at a maximum value.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 19, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Watanabe, Atsushi Hiroike, Kenichi Yoneji, Nobuo Nukaga, Naoto Akira, Tomoaki Yoshinaga
  • Publication number: 20200117948
    Abstract: Provided is technique of object recognition that can accurately recognize an object. An object recognition apparatus (i) generates property data that highlights a specific property based on target data, (ii) extracts a discrimination-use feature amount used for discrimination of each piece of the property data, (iii) calculates discrimination information used for discrimination of the property data, (iv) extractsa reliability feature amount used for estimation of reliability of the discrimination information calculated for each piece of the property data, (v) estimates the reliability of the discrimination information, (vi) generates synthesized information acquired by synthesizing the discrimination information calculated for each piece of the property data and the reliability calculated for each piece of the property data, and (vii) performs processing related to the object recognition.
    Type: Application
    Filed: December 21, 2017
    Publication date: April 16, 2020
    Applicant: HITACHI LTD
    Inventors: Quan Kong, Yuki Watanabe, Naoto Akira, Daisuke Matsubara
  • Publication number: 20180060356
    Abstract: An image search device searching an image from an image database storing a recorded image, one or more types of feature values, and propagation information that indicates a link between a same type of the feature values of the recorded image, the device acquires a first image and the one or more types of feature values of the first image, records the first image and the feature values in the image database, calculates a propagation intensity indicating similarity or sameness between the types of feature values of the recorded image and the types of feature values of the first image, and includes in the propagation information a link between the types of feature values of the first image and the types of feature values of the recorded image for which the propagation intensity between the types of feature values of the recorded image and the types of feature values of the first image is at a maximum value.
    Type: Application
    Filed: March 13, 2015
    Publication date: March 1, 2018
    Inventors: Yuki WATANABE, Atsushi HIROIKE, Kenichi YONEJI, Nobuo NUKAGA, Naoto AKIRA, Tomoaki YOSHINAGA
  • Patent number: 9430716
    Abstract: An example is an image processing method including a step of acquiring data containing an image, an extraction step of extracting a first image region from the acquired data based on the type of software for generating the acquired data, an extraction step of extracting a second image region the same as or similar to each of images held in a storage unit from the acquired data by comparing the acquired data and each of the images, an extraction step of extracting a third image region the same as or similar to each of the images from the acquired data by comparing the image feature amount of the acquired data and the image feature amount of each of the images, and a step of identifying an image in the acquired data to be stored in the storage unit based on the image regions and reliabilities of the extraction steps.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: August 30, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Naoto Akira, Atsushi Hiroike
  • Patent number: 9277165
    Abstract: A technique capable of preventing an increase in the load of a system and a IP-based network that perform both a process of transmitting information in real time and a process of storing and searching history information and of improving the scalability of the system. A video surveillance system includes: plural cameras that capture images; a monitoring apparatus that displays the images captured by the cameras; an information generating apparatus that generates information for searching the images captured by the cameras; and a search apparatus that searches the images captured by the cameras. The information generating apparatus acquires the images captured by the cameras, generates retrieval data from the acquired images, and transmits the generated retrieval data to the search apparatus. The search apparatus stores the retrieval data received from the information generating apparatus in a storage device, and notifies the monitoring apparatus that the retrieval data has been stored.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: March 1, 2016
    Assignee: HITACHI, LTD.
    Inventors: Atsushi Hiroike, Tatsuhiko Kagehiro, Naoto Akira, Kunihiko Toumura, Takehiro Urano
  • Patent number: 9083891
    Abstract: A video monitoring apparatus capable of efficiently superimposing additional information on a monitoring camera image is provided. The video monitoring apparatus holds image specifying information for specifying an image picked up by a camera and additional information in correspondence with each other. In superimposing additional information on an image, additional information corresponding to images having a distance therebetween falling within a prescribed range is searched for, and out of the thus found additional information, one that may be fit within an image currently picked up by the camera is superimposed on the camera image.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: July 14, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Watanabe, Tsuneya Kurihara, Naoto Akira, Daisuke Matsubara, Atsushi Hiroike
  • Patent number: 8620037
    Abstract: An image retrieval system, including: an image input section for inputting a retrieval target image; an image data base for storing image data; a retrieval section for retrieving a plurality of images similar to said retrieval target image, by using a feature amount of said retrieval target image from said image data base; a filtering processing section for carrying out filtering processing using a whole image feature amount of another feature amount different from said feature amount of said retrieval target image about said plurality of images, to obtain a filtering result; and an outputting section for outputting said filtering result.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: December 31, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Daisuke Matsubara, Atsushi Hiroike, Yasutsugu Morimoto, Naoto Akira