Patents by Inventor Kenta Senzaki

Kenta Senzaki 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: 12282104
    Abstract: A satellite attitude estimation system includes an infrared sensor configured to capture an infrared image of a target satellite for which an attitude is to be estimated. The system determines, in the captured infrared image, a first pixel having a largest luminance and a second pixel having a smallest luminance in the infrared image. The system associates the first pixels with first coordinates of a 3D structure of the target satellite, and associates the second pixels with second coordinates of the 3D structure of the target satellite. The system computes a first normal vector to a surface of the 3D structure for the first coordinates, and computes a second normal vector to the surface of the 3D structure for the second coordinates. The system estimates a direction of the target satellite to the sun before the infrared image was taken, using the computed first and second normal vectors.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: April 22, 2025
    Assignee: NEC CORPORATION
    Inventors: Chika Umegaki, Kenta Senzaki, Katsuya Odaka, Hironobu Mori, Kyoko Murozono
  • Publication number: 20250069303
    Abstract: An information display apparatus includes: a collation unit that specifies a position of an object in an overhead image obtained by capturing an image of a region that includes the object before a disaster, based on a result of collating the overhead image with a section in a target image that includes a situation of the object after the disaster, the section satisfying a criterion for determining that an influence of the disaster is small; and a display unit that displays an image that includes the situation of the object and information by which the position of the object in the overhead image can be specified.
    Type: Application
    Filed: August 15, 2024
    Publication date: February 27, 2025
    Applicant: NEC Corporation
    Inventors: Takashi Shibata, Naoya Sogi, Kenta Senzaki, Makoto Terao, Masahiro Tani, Hiroyoshi Miyano
  • Patent number: 12219151
    Abstract: The video encoding device for encoding video using inter prediction includes a unit which determines to perform an entropy-encoding process of encoding a PU (Prediction Unit) partition type syntax of a CU (Coding Unit) to be encoded, based on a prediction mode of the CU to be encoded being an inter prediction mode and a size of the CU to be encoded being equal to a predetermined minimum inter-PU size.
    Type: Grant
    Filed: January 24, 2024
    Date of Patent: February 4, 2025
    Assignee: NEC CORPORATION
    Inventors: Kenta Senzaki, Yuzo Senda, Keiichi Chono, Hirofumi Aoki
  • Publication number: 20240331418
    Abstract: This image processing device is configured to comprise a region setting unit, a standard image extraction unit, a data generation unit, and an output unit. The region setting unit sets, in an annotation target image, a region in which an annotation target object can be present as a candidate region. The standard image extraction unit extracts, from an image on which annotation has been completed, a standard image that is an image in which an object identical to the target object is captured. The data generation unit generates, as annotation data, data in which the annotation target image, a reference image which is captured of a region including the candidate region at a time different from the time when the annotation target image is captured, and the standard image are associated with each other. The output unit outputs the generated annotation data generated.
    Type: Application
    Filed: August 31, 2022
    Publication date: October 3, 2024
    Applicant: NEC Corporation
    Inventors: Kyoko MUROZONO, Azusa SAWADA, Kenta SENZAKI, Hironobu MORI, Katsuya ODAKA
  • Publication number: 20240296663
    Abstract: An estimation unit estimates attitude parameters, which are parameters representing an attitude of an object in a target image based on the target image, which is an image in which the object whose attitude is to be estimated has been taken, using an attitude estimation model learned using one or more teacher data including a teacher image, which is an image in which the object has been taken, and the attitude parameters of the object in the teacher image. An acquisition unit acquires a teacher image whose attitude similarity, which is a degree of similarity between the estimated attitude parameters and the attitude parameters related to the teacher image, is the largest among one or more teacher images included in the one or more teacher data. A first computation unit computes an image similarity, which is a degree of similarity between the target image and the acquired teacher image.
    Type: Application
    Filed: January 14, 2022
    Publication date: September 5, 2024
    Applicant: NEC Corporation
    Inventors: Kenta Senzaki, Kyoko Murozono, Shogo Sato
  • Patent number: 12038502
    Abstract: An object of an example embodiment of the present disclosure is to stably estimate a navigation status of a target ship at a predetermined time from time-series position information of the ship. A ship behavior analyzing device according to the example embodiment of the present disclosure includes a ship detection means for detecting a ship from synthetic aperture radar (SAR) data, a wake extraction means for extracting a wake of the detected ship, a wake pattern generation means for generating a wake pattern image by using the extracted wake, and a navigation status estimation means for estimating a navigation status of the target ship by using the generated wake pattern image.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: July 16, 2024
    Assignee: NEC CORPORATION
    Inventor: Kenta Senzaki
  • Publication number: 20240176013
    Abstract: An acquisition unit acquires a target image including a plurality of target objects, object position information, and object-related information. The object-related information to be acquired by the acquisition unit includes at least one of a generation time of the object position information acquired by the acquisition unit and a speed of the target object. A generation unit generates reliability information of the object position information by use of at least the object-related information. A selection unit selects one or more pieces of the object position information by use of the reliability information. A correction data acquisition unit acquires correction data of the object position information regarding each of the one or more pieces of the selected object position information. A correction unit corrects the plurality of the object position information by use of one or more pieces of the acquired correction data.
    Type: Application
    Filed: November 21, 2023
    Publication date: May 30, 2024
    Applicant: NEC Corporation
    Inventor: Kenta SENZAKI
  • Publication number: 20240163449
    Abstract: The video encoding device for encoding video using inter prediction includes a unit which determines to perform an entropy-encoding process of encoding a PU (Prediction Unit) partition type syntax of a CU (Coding Unit) to be encoded, based on a prediction mode of the CU to be encoded being an inter prediction mode and a size of the CU to be encoded being equal to a predetermined minimum inter-PU size.
    Type: Application
    Filed: January 24, 2024
    Publication date: May 16, 2024
    Applicant: NEC Corporation
    Inventors: Kenta SENZAKI, Yuzo Senda, Keiichi Chono, Hirofumi Aoki
  • Publication number: 20240163448
    Abstract: In a video decoding device for decoding video using inter prediction, decoding control means sets capable values of an inter-PU (Prediction Unit) partition type of a CU (Coding Unit) to be decoded, based on whether or not a size of the CU to be decoded is equal to a minimum inter-PU size.
    Type: Application
    Filed: January 23, 2024
    Publication date: May 16, 2024
    Applicant: NEC Corporation
    Inventors: Kenta SENZAKI, Yuzo SENDA, Keiichi CHONO, Hirofumi AOKI
  • Patent number: 11943449
    Abstract: A video decoding device for decoding video using inter prediction includes entropy decoding means for decoding an inter-PU partition type syntax; and decoding control means for making the entropy decoding means decode the inter-PU (Prediction Unit) partition type syntax of a CU (Coding Unit) to be decoded, based on whether the prediction mode of the CU to be decoded is an inter prediction mode and whether a size of the CU to be decoded is equal to a predetermined minimum inter-PU size.
    Type: Grant
    Filed: January 19, 2023
    Date of Patent: March 26, 2024
    Assignee: NEC CORPORATION
    Inventors: Kenta Senzaki, Yuzo Senda, Keiichi Chono, Hirofumi Aoki
  • Publication number: 20240037889
    Abstract: This image processing device comprises an input unit, a verification area extraction unit, and an output unit. The input unit receives, as an annotation area, an input of information of an area on a first image in which an object subjected to annotation processing is present. The verification area extraction unit extracts a second image including the annotation area and captured in a manner different from that for the first image. The output unit outputs the first image and the second image in a comparable state.
    Type: Application
    Filed: November 26, 2021
    Publication date: February 1, 2024
    Applicant: NEC Corporation
    Inventors: Kenta SENZAKI, Azusa SAWADA, Hironobu MORI, Kyoko MUROZONO, Katsuya ODAKA
  • Patent number: 11681036
    Abstract: An object is to provide an image processing apparatus capable of appropriately distinguishing various object types. An image processing apparatus (1C) comprising: detector means (11) for detecting objects in an input SAR image and generating object chips; projection calculator means (12) for calculating projection information of each object using SAR geometry; feature learner means (14) for learning, for each object, a relation between an object chip and its projection information, and thereby generating learnt features of object chips; and classifier means (15) for classifying object chips into classes based on the learnt features of object chips.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: June 20, 2023
    Assignee: NEC CORPORATION
    Inventors: Shreya Sharma, Yuzo Senda, Hirofumi Aoki, Kenta Senzaki
  • Patent number: 11665352
    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: Grant
    Filed: March 3, 2022
    Date of Patent: May 30, 2023
    Assignee: NEC CORPORATION
    Inventors: Kenta Senzaki, Yuzo Senda, Keiichi Chono, Hirofumi Aoki
  • Patent number: 11659188
    Abstract: A video decoding device and method, including extracting PCM block size information including a threshold, from a bitstream, determining the threshold based on the extracted PCM block size information; parsing a PCM header from the bitstream with respect to an encoded block, only when said encoded block is prediction mode of intra prediction and a block size of said encoded block is equal to or greater than the determined threshold, controlling an entropy decoding process and a PCM decoding process based on the parsed PCM header; parsing transformed data of a prediction error data of an image in the bitstream; and PCM-decoding PCM data of the image in the bitstream, wherein the decoding performs the decoding operation based on the prediction mode being intra prediction and based on the block size of the encoded block being equal to or greater than the determined threshold.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: May 23, 2023
    Assignee: NEC CORPORATION
    Inventors: Keiichi Chono, Yuzo Senda, Junji Tajime, Hirofumi Aoki, Kenta Senzaki
  • Patent number: 11659189
    Abstract: A video decoding device and method, including extracting PCM block size information including a threshold, from a bitstream, determining the threshold based on the extracted PCM block size information; parsing a PCM header from the bitstream with respect to an encoded block, only when said encoded block is prediction mode of intra prediction and a block size of said encoded block is equal to or greater than the determined threshold, controlling an entropy decoding process and a PCM decoding process based on the parsed PCM header; parsing transformed data of a prediction error data of an image in the bitstream; and PCM-decoding PCM data of the image in the bitstream, wherein the decoding performs the decoding operation based on the prediction mode being intra prediction and based on the block size of the encoded block being equal to or greater than the determined threshold.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: May 23, 2023
    Assignee: NEC CORPORATION
    Inventors: Keiichi Chono, Yuzo Senda, Junji Tajime, Hirofumi Aoki, Kenta Senzaki
  • Publication number: 20230156198
    Abstract: A video decoding device for decoding video using inter prediction includes entropy decoding means for decoding an inter-PU partition type syntax; and decoding control means for making the entropy decoding means decode the inter-PU (Prediction Unit) partition type syntax of a CU (Coding Unit) to be decoded, based on whether the prediction mode of the CU to be decoded is an inter prediction mode and whether a size of the CU to be decoded is equal to a predetermined minimum inter-PU size.
    Type: Application
    Filed: January 19, 2023
    Publication date: May 18, 2023
    Applicant: NEC Corporation
    Inventors: Kenta SENZAKI, Yuzo Senda, Keiichi Chono, Hirofumi Aoki
  • Patent number: 11647205
    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: Grant
    Filed: March 3, 2022
    Date of Patent: May 9, 2023
    Assignee: NEC CORPORATION
    Inventors: Kenta Senzaki, Yuzo Senda, Keiichi Chono, Hirofumi Aoki
  • Publication number: 20230133519
    Abstract: An image processing device 100 of the present invention includes an image generation means 121 for generating a difference image representing a difference between an object image that is an image including an area from which a mobile body is to be detected and a corresponding image that is another image including an area corresponding to the area of the object image, and a detection means 122 for detecting the mobile body from the object image on the basis of the object image, the corresponding image, and the difference image.
    Type: Application
    Filed: April 17, 2020
    Publication date: May 4, 2023
    Applicant: NEC Corporation
    Inventors: Azusa Sawada, Kenta Senzaki, Takashi Shibata, Takashi Shibata
  • Patent number: 11582461
    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: Grant
    Filed: October 8, 2020
    Date of Patent: February 14, 2023
    Assignee: NEC CORPORATION
    Inventors: Kenta Senzaki, Yuzo Senda, Keiichi Chono, Hirofumi Aoki
  • Patent number: 11509909
    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: Grant
    Filed: August 4, 2020
    Date of Patent: November 22, 2022
    Assignee: NEC CORPORATION
    Inventors: Hirofumi Aoki, Keiichi Chono, Yuzo Senda, Kenta Senzaki