Patents by Inventor Hirotaka Hachiya

Hirotaka Hachiya 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: 11468290
    Abstract: An output value of a first neural network for input data is obtained in correspondence with each category. An output value of a second neural network generated by changing a designated unit in the first neural network is obtained for the input data in correspondence with each category. For each category, change information representing a change in the output value is obtained. Information representing contribution of the designated unit are output to a display device based on the change information.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: October 11, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hirotaka Hachiya
  • Patent number: 11363241
    Abstract: An apparatus acquires a video image from a surveillance camera 2 and displays an image based on the video image on a display 3. The apparatus 1 records the video image acquired from the surveillance camera 2 in a recording unit 105. The apparatus 1 includes an abnormality detection unit 106 configured to detect an abnormality from the video image, an attention period determination unit 107 configured to determine an attention period based on a period from a start to an end of a detected abnormality, and a displaying unit 102 configured to display a video image acquired from the surveillance camera 2 as it is on a display 3 until the abnormality being detected ends, and, when the abnormality being detected ends, acquire, from a recording unit 105, a recorded video image recorded in a period corresponding to the attention period and play back the acquired recorded video image.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: June 14, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunsuke Sato, Hirotaka Hachiya, Yusuke Mitarai
  • Publication number: 20200077050
    Abstract: An apparatus acquires a video image from a surveillance camera 2 and displays an image based on the video image on a display 3. The apparatus 1 records the video image acquired from the surveillance camera 2 in a recording unit 105. The apparatus 1 includes an abnormality detection unit 106 configured to detect an abnormality from the video image, an attention period determination unit 107 configured to determine an attention period based on a period from a start to an end of a detected abnormality, and a displaying unit 102 configured to display a video image acquired from the surveillance camera 2 as it is on a display 3 until the abnormality being detected ends, and, when the abnormality being detected ends, acquire, from a recording unit 105, a recorded video image recorded in a period corresponding to the attention period and play back the acquired recorded video image.
    Type: Application
    Filed: November 5, 2019
    Publication date: March 5, 2020
    Inventors: Shunsuke Sato, Hirotaka Hachiya, Yusuke Mitarai
  • Patent number: 10217027
    Abstract: A recognition training apparatus according to the present invention includes a generation unit configured to generate relevance between a specific domain and a candidate of a recognition target based on ontology information expressing a concept structure of the specific domain, a selection unit configured to select the recognition target from the candidate of the recognition target based on the relevance generated by the generation unit, and a training unit configured to train a recognizer using training data regarding the recognition target selected by the selection unit.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: February 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirotaka Hachiya, Masakazu Matsugu
  • Patent number: 10013628
    Abstract: A plurality of random number sequences are generated using a plurality of random number seeds stored in a memory, and a plurality of base vectors are generated based on the plurality of random number sequences. A transformation source vector is transformed into a lower-dimensional vector by performing random projection for the transformation source vector using the plurality of generated base vectors.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: July 3, 2018
    Assignee: Canon Kabushiki Ksiaha
    Inventors: Masami Kato, Hirotaka Hachiya
  • Publication number: 20180005106
    Abstract: An output value of a first neural network for input data is obtained in correspondence with each category. An output value of a second neural network generated by changing a designated unit in the first neural network is obtained for the input data in correspondence with each category. For each category, change information representing a change in the output value is obtained. Information representing contribution of the designated unit are output to a display device based on the change information.
    Type: Application
    Filed: June 28, 2017
    Publication date: January 4, 2018
    Inventor: Hirotaka Hachiya
  • Publication number: 20170206437
    Abstract: A recognition training apparatus according to the present invention includes a generation unit configured to generate relevance between a specific domain and a candidate of a recognition target based on ontology information expressing a concept structure of the specific domain, a selection unit configured to select the recognition target from the candidate of the recognition target based on the relevance generated by the generation unit, and a training unit configured to train a recognizer using training data regarding the recognition target selected by the selection unit.
    Type: Application
    Filed: January 13, 2017
    Publication date: July 20, 2017
    Inventors: Hirotaka Hachiya, Masakazu Matsugu
  • Publication number: 20160155068
    Abstract: A holding unit of an information processing apparatus holds a classification model and characteristic information for each of a plurality of groups acquired by dividing a plurality of feature values extracted from a plurality of training data pieces belonging to a specific class. Then, a feature extraction unit extracts a feature value from input data, and a selection unit selects one or more group(s) from the plurality of groups based on this extracted feature value and the characteristic information held by the holding unit. Then, a determination unit determines whether the input data belongs to the specific class with use of the classification model(s) corresponding to the selected group(s).
    Type: Application
    Filed: November 23, 2015
    Publication date: June 2, 2016
    Inventor: Hirotaka Hachiya
  • Publication number: 20150278634
    Abstract: A plurality of random number sequences are generated using a plurality of random number seeds stored in a memory, and a plurality of base vectors are generated based on the plurality of random number sequences. A transformation source vector is transformed into a lower-dimensional vector by performing random projection for the transformation source vector using the plurality of generated base vectors.
    Type: Application
    Filed: March 19, 2015
    Publication date: October 1, 2015
    Inventors: Masami Kato, Hirotaka Hachiya
  • Publication number: 20140304236
    Abstract: A hash value generation apparatus that generates a hash value for identifying unknown data as belonging to a specified class or an unspecified class, includes a generation unit configured to generate hash function information including a hash function based on a specified feature amount of data belonging to the specified class, a conversion unit configured to convert the specified feature amount into a hash value based on the generated hash function information, and a storage unit configured to store the hash value obtained by the conversion as a normal hash value in association with the hash function information.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 9, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Hirotaka Hachiya