Patents by Inventor Yasufumi Hirakawa

Yasufumi Hirakawa 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: 20240095659
    Abstract: An information processing apparatus (100) includes a position information acquisition unit (102) that acquires position information of a customer, and an order reception unit (104) that receives an order for product purchase by the customer at a virtual store, when the position information satisfies a criterion.
    Type: Application
    Filed: January 13, 2022
    Publication date: March 21, 2024
    Applicant: NEC Corporation
    Inventors: Yasufumi Hirakawa, Nobuaki Kawase, Takashi Yasuda
  • Publication number: 20240054759
    Abstract: An information processing apparatus includes at least one memory storing instructions, and at least one processor. The at least one processor is configured to execute the instructions to acquire image data of a predetermined space captured by a camera, generate measurement data including a person-to-person distance between persons included in the image data, set space data about a size of the space, determine whether a state of density of the persons in the space is appropriate or not, based on the measurement data and the space data, and output a determination result.
    Type: Application
    Filed: January 19, 2022
    Publication date: February 15, 2024
    Applicant: NEC Corporation
    Inventor: Yasufumi Hirakawa
  • Publication number: 20240054804
    Abstract: An image processing apparatus includes at least one memory storing instructions, and at least one processor. The at least one processor is configured to execute the instructions to acquire image data of a predetermined space captured by a camera, set a mask region in the space, identify a person image being an image of a person included in the image data, estimate a body of the person, based on the person image, perform determination on whether the body of the person with respect to the person image is included in the mask region, perform processing of masking the person, based on a result of the determination by a determination means.
    Type: Application
    Filed: November 11, 2021
    Publication date: February 15, 2024
    Applicant: NEC Corporation
    Inventors: Yasufumi HIRAKAWA, Natsuki YUI
  • Publication number: 20240046508
    Abstract: A determination apparatus includes at least one memory storing instructions, and at least one processor. The at least one processor is configured to execute the instructions to acquire image data of a predetermined space captured by an image capturing device, estimate articulation points of a person in the image data, set a feature element of the person based on the articulation points, determine whether the person is in a reference region set in advance, based on the feature element, output information regarding a determination result of the determination made by the entry determining unit.
    Type: Application
    Filed: March 23, 2021
    Publication date: February 8, 2024
    Applicant: NEC Corporation
    Inventor: Yasufumi Hirakawa
  • Publication number: 20230410621
    Abstract: A setting assistance device includes an acquisition unit, a calculation unit and a determination unit. The acquisition unit acquires coordinates designated by a user for an image capturing a three-dimensional space. The calculation unit calculates coordinates of a position located at a predetermined distance from a position of a part of the three-dimensional space relating to the acquired coordinates. The determination unit determines a region set for the acquired coordinates based on the calculated coordinates.
    Type: Application
    Filed: September 1, 2023
    Publication date: December 21, 2023
    Applicant: NEC CORPORATION
    Inventor: Yasufumi HIRAKAWA
  • Patent number: 11836147
    Abstract: An information processing apparatus (100) includes: an acquisition unit (110) configured to acquire first time-series data including presence area information in a target space in subjects; a data set generation unit (120) configured to generate a plurality of data sets from presence area information regarding a specific subject; an estimation unit (130) configured to estimate an accuracy of analyzing a distribution regarding the subject in the target space based on presence area information; a determination unit (140) configured to determine a time width of an aggregation target based on the data reduction degree due to the aggregation in each data set and an accuracy of analysis; and an aggregation unit (150) configured to perform aggregation on a data set that corresponds to the determined time width to representative data.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: December 5, 2023
    Assignee: NEC CORPORATION
    Inventors: Yosuke Iwamatsu, Yasufumi Hirakawa
  • Patent number: 11830286
    Abstract: A data processing apparatus (1) of the present invention includes a unit that retrieves a predetermined subject from moving image data. The data processing apparatus includes a person extraction unit (10) that analyzes moving image data to be analyzed and extracts a person whose appearance frequency in the moving image data to be analyzed satisfies a predetermined condition among persons detected in the moving image data to be analyzed, and an output unit (20) that outputs information regarding the extracted person.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: November 28, 2023
    Assignee: NEC CORPORATION
    Inventors: Jianquan Liu, Shoji Nishimura, Takuya Araki, Yasufumi Hirakawa
  • Publication number: 20230351612
    Abstract: The video image analysis program causes one or more computers to perform: a process of accepting input specifying a tracking target object; a process of obtaining a first image obtained by cutting out the tracking target object from a video image showing the tracking target object at a first time; a process of obtaining a second image obtained by cutting out the tracking target object from the video image showing the tracking target object at a second time; a process of obtaining a first display image which displays information about time with the first image; a process of obtaining a second display image which displays information about time with the second image; a process of displaying the first display image and the second display image on a display unit.
    Type: Application
    Filed: July 6, 2023
    Publication date: November 2, 2023
    Applicant: NEC Corporation
    Inventor: Yasufumi HIRAKAWA
  • Patent number: 11783685
    Abstract: A setting assistance device includes an acquisition unit, a calculation unit and a determination unit. The acquisition unit acquires coordinates designated by a user for an image capturing a three-dimensional space. The calculation unit calculates coordinates of a position located at a predetermined distance from a position of a part of the three-dimensional space relating to the acquired coordinates. The determination unit determines a region set for the acquired coordinates based on the calculated coordinates.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: October 10, 2023
    Assignee: NEC CORPORATION
    Inventor: Yasufumi Hirakawa
  • Patent number: 11748892
    Abstract: A video image processing device comprises at least one memory configured to store instructions and, at least one processor configured to execute the instructions. The at least one processor controls to display a trajectory indicating a change in a position of an object in a video image. The at least one processor controls to display an image of the object corresponding to a vicinity of the trajectory in the video image around a part of the trajectory.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: September 5, 2023
    Assignee: NEC CORPORATION
    Inventor: Yasufumi Hirakawa
  • Publication number: 20230239428
    Abstract: A video processing system includes: an object movement information acquiring means for detecting a moving object moving in a plurality of segment regions from video data obtained by shooting a monitoring target area, and acquiring movement segment region information as object movement information, the movement segment region information representing segment regions where the detected moving object has moved; an object movement information and video data storing means for storing the object movement information in association with the video data corresponding to the object movement information; a retrieval condition inputting means for inputting a sequence of the segment regions as a retrieval condition; and a video data retrieving means for retrieving the object movement information in accordance with the retrieval condition and outputting video data stored in association with the retrieved object movement information, the object movement information being stored by the object movement information and video d
    Type: Application
    Filed: March 29, 2023
    Publication date: July 27, 2023
    Applicant: NEC Corporation
    Inventor: Yasufumi HIRAKAWA
  • Patent number: 11665311
    Abstract: A video processing system includes: an object movement information acquiring means for detecting a moving object moving in a plurality of segment regions from video data obtained by shooting a monitoring target area, and acquiring movement segment region information as object movement information, the movement segment region information representing segment regions where the detected moving object has moved; an object movement information and video data storing means for storing the object movement information in association with the video data corresponding to the object movement information; a retrieval condition inputting means for inputting a sequence of the segment regions as a retrieval condition; and a video data retrieving means for retrieving the object movement information in accordance with the retrieval condition and outputting video data stored in association with the retrieved object movement information, the object movement information being stored by the object movement information and video d
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: May 30, 2023
    Assignee: NEC CORPORATION
    Inventor: Yasufumi Hirakawa
  • Publication number: 20230114776
    Abstract: An image recognition system includes a first detection unit, an extracted image generation unit, and a second detection unit. The first detection unit detects a person region showing at least part of a body of a person from a first image where a target object related to the person is captured. The extracted image generation unit cuts out an extracted region defined according to the person region from the first image. The second detection unit detects the target object on the basis of the cutout extracted region.
    Type: Application
    Filed: March 27, 2020
    Publication date: April 13, 2023
    Applicant: NEC Corporation
    Inventor: Yasufumi HIRAKAWA
  • Patent number: 11587415
    Abstract: Provided is a data stream allocation system capable of suppressing inequality in processing loads on a plurality of servers and delays in analysis processing at the servers when the servers analyze the objects of analysis using data streams obtained from a plurality of camera systems. The allocation determination unit 4 allocates data streams obtained from a plurality of camera systems to a plurality of servers according to the unevenness in the number of objects in the surveillance region. Then, the distribution unit 5, in accordance with the results of the allocation of the data streams to the plurality of servers, distributes each of the data streams obtained from the camera systems to the server to which the data stream has been allocated.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: February 21, 2023
    Assignee: NEC CORPORATION
    Inventors: Takeshi Arikuma, Takatoshi Kitano, Yasufumi Hirakawa
  • Publication number: 20220415145
    Abstract: A setting assistance device includes an acquisition unit, a calculation unit and a determination unit. The acquisition unit acquires coordinates designated by a user for an image capturing a three-dimensional space. The calculation unit calculates coordinates of a position located at a predetermined distance from a position of a part of the three-dimensional space relating to the acquired coordinates. The determination unit determines a region set for the acquired coordinates based on the calculated coordinates.
    Type: Application
    Filed: August 31, 2022
    Publication date: December 29, 2022
    Applicant: NEC Corporation
    Inventor: Yasufumi HIRAKAWA
  • Patent number: 11468753
    Abstract: The conventional image surveillance technologies relevant to the present invention had the potential of failing in detect ion due to the intrusion duration time being set too long and thereby allowing an intruder to pass a warning line before the preset intrusion duration had elapsed. The intrusion detection device according to the present invention is provided with: a detect ion means that detects, in an image, an intrusion position in a specific region by an object that has intruded into the specific region; and a control means that associates the intrusion position with a prescribed time period, wherein the detection means outputs an alert when the object, in the image, has stayed in the specific region for the prescribed time period or longer.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: October 11, 2022
    Assignee: NEC CORPORATION
    Inventor: Yasufumi Hirakawa
  • Publication number: 20220270460
    Abstract: A wireless terminal detection system provided with user position information acquisition means for measuring a position of a reception-side wireless terminal; pattern classification means for classifying movement patterns extracted from position history information of the reception-side wireless terminal into ordinary patterns and non-ordinary patterns based on classification results in which the movement patterns are classified in accordance with times and positions; and determination means for determining whether a transmission-side wireless terminal, which is a transmission source of radio waves received by the reception-side wireless terminal, is a suspicious terminal based on a reception history of radio waves from the transmission-side wireless terminal in time intervals classified as the non-ordinary patterns.
    Type: Application
    Filed: July 10, 2020
    Publication date: August 25, 2022
    Applicant: NEC Corporation
    Inventors: Jun SAKAI, Masaki KITSUNEZUKA, Toshiki TAKEUCHI, Taichi OHTSUJI, Shoji NISHIMURA, Yasufumi HIRAKAWA
  • Publication number: 20220264308
    Abstract: A wireless terminal detection system provided with a radio wave identification unit that extracts identification information in accordance with the wireless terminals that are transmission sources; a radio wave intensity measurement unit that measures radio wave intensities of the radio waves; a distance estimation unit that estimates an attenuation rate of the radio wave intensities with respect to distance based on a number of the wireless terminals, and that estimates distances to the individual wireless terminals based on the estimated attenuation rate; and a notification unit that notifies a user that a suspicious wireless terminal has been detected if, based on the identification information, a wireless terminal among the radio wave transmission sources is determined to be registered as a suspicious wireless terminal, and the estimated distance to the wireless terminal among the radio wave transmission sources is not more than a prescribed distance.
    Type: Application
    Filed: July 10, 2020
    Publication date: August 18, 2022
    Applicant: NEC Corporation
    Inventors: Jun SAKAI, Masaki KITSUNEZUKA, Taichi OHTSUJI, Toshiki TAKEUCHI, Shoji NISHIMURA, Yasufumi HIRAKAWA
  • Publication number: 20220156261
    Abstract: An information processing apparatus (100) includes: an acquisition unit (110) configured to acquire first time-series data including presence area information in a target space in subjects; a data set generation unit (120) configured to generate a plurality of data sets from presence area information regarding a specific subject; an estimation unit (130) configured to estimate an accuracy of analyzing a distribution regarding the subject in the target space based on presence area information; a determination unit (140) configured to determine a time width of an aggregation target based on the data reduction degree due to the aggregation in each data set and an accuracy of analysis; and an aggregation unit (150) configured to perform aggregation on a data set that corresponds to the determined time width to representative data.
    Type: Application
    Filed: March 25, 2019
    Publication date: May 19, 2022
    Applicant: NEC Corporation
    Inventors: Yosuke IWAMATSU, Yasufumi HIRAKAWA
  • Publication number: 20220148395
    Abstract: Provided is a data stream allocation system capable of suppressing inequality in processing loads on a plurality of servers and delays in analysis processing at the servers when the servers analyze the objects of analysis using data streams obtained from a plurality of camera systems. The allocation determination unit 4 allocates data streams obtained from a plurality of camera systems to a plurality of servers according to the unevenness in the number of objects in the surveillance region. Then, the distribution unit 5, in accordance with the results of the allocation of the data streams to the plurality of servers, distributes each of the data streams obtained from the camera systems to the server to which the data stream has been allocated.
    Type: Application
    Filed: January 31, 2019
    Publication date: May 12, 2022
    Applicant: NEC Corporation
    Inventors: Takeshi ARIKUMA, Takatoshi KITANO, Yasufumi HIRAKAWA