公开(公告)号：US20240144624A1

公开(公告)日：2024-05-02

申请号：US18382725

申请日：2023-10-23

Applicant: NEC Corporation

Inventor： Kazumine OGURA ,  Tatsuya SUMIYA ,  Jiro ABE ,  Nagma Samreen KHAN ,  Yuya MATSUMOTO

IPC: G06T19/20 ,  G01S17/89 ,  G06F3/14

CPC classification number: G06T19/20 ,  G01S17/89 ,  G06F3/14 ,  G06T2219/2004

Abstract: An object is to construct an accurate correspondence relation between points included in 3D data and pixels that form an image. An alignment unit receives image data acquired by capturing an image of an object, and 3D data of the object, performs alignment between the image data and the 3D data, and outputs data after the alignment. A pixel selection unit selects a target pixel from a plurality of pixels included in the image data. The pixel point association unit selects, from a plurality of point data items of 3D data included in the data after the alignment, three or more point data items near the target pixel as neighboring point data, estimates one surface based on the neighboring point data, and performs association for calculating a position of the target pixel on the one surface in a space which the plurality of point data items belong to.

公开(公告)号：US20240127475A1

公开(公告)日：2024-04-18

申请号：US18376093

申请日：2023-10-03

Applicant: NEC Corporation

Inventor： Yuya MATSUMOTO ,  Jiro ABE ,  Tatsuya SUMIYA ,  Kazumine OGURA

IPC: G06T7/73 ,  G06T15/20

CPC classification number: G06T7/74 ,  G06T15/20 ,  G06T2207/10028 ,  G06T2207/30244 ,  G06T2210/56

Abstract: An information processing apparatus according to the present disclosure includes: at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: generate, for each of a plurality of virtual cameras in a three-dimensional space, a virtual camera image shot by the respective one of the virtual cameras on the basis of point cloud data of the three-dimensional space; and estimate, on the basis of similarity between the virtual camera image generated by having the processor execute the generation instruction and a camera image shot by a camera, location and orientation of the camera when it shot the camera image.

公开(公告)号：US20220413115A1

公开(公告)日：2022-12-29

申请号：US17640421

申请日：2019-09-10

Applicant: NEC Corporation

Inventor： Shingo YAMANOUCHI ,  Toshiyuki NOMURA ,  Taichi TANAKA ,  Tatsuya SUMIYA

IPC: G01S13/34 ,  G01S13/04

Abstract: An object detection apparatus 1000 includes: a transmission unit 1101, having a transmission antenna, configured to emit a radio wave toward an object using the transmission antenna; a reception unit 1102, having a reception antenna, configured to receive the radio wave reflected by the object as a reception signal and generate an intermediate frequency signal from the reception signal received; and a processing device 1211. The processing device 1211 calculates an amplitude distribution of the radio wave reflected by the object on the basis of the placement of the transmission antenna, the placement of the reception antenna, the frequency of the radio wave emitted from the transmission antenna, and the intermediate frequency signal, and furthermore, using a correction operator calculated from a point spread function indicating characteristics of the transmission unit 1101 and the reception unit 1102, corrects the amplitude distribution calculated.

公开(公告)号：US20220366614A1

公开(公告)日：2022-11-17

申请号：US17770763

申请日：2019-10-25

Applicant: NEC Corporation

Inventor： Masayuki ARIYOSHI ,  Kazumine OGURA ,  Tatsuya SUMIYA ,  Shingo YAMANOUCHI ,  Nagma Samreen KHAN ,  Toshiyuki NOMURA

IPC: G06T11/00 ,  G06T3/40 ,  G01S17/04 ,  G01S17/894

Abstract: A image processing apparatus (20) includes at least an acquisition unit (210), a processing unit (220), and an image generation unit (230). The acquisition unit (210) acquires an intermediate frequency signal from an irradiation apparatus (10). The processing unit (220) generates three-dimensional positional information about a subject by processing the intermediate frequency signal. The image generation unit (230) generates at least a first two-dimensional image and a second two-dimensional image, and displays the two-dimensional images on a display apparatus (30). The first two-dimensional image is, for example, an image when viewed from a direction in which the subject moves, and the second two-dimensional image is, for example, an image when viewed from an opposite direction.

公开(公告)号：US20220260673A1

公开(公告)日：2022-08-18

申请号：US17622300

申请日：2019-06-28

Applicant: NEC Corporation

Inventor： Tatsuya SUMIYA ,  Masayuki ARIYOSHI ,  Kazurnine OGURA ,  Taichi TANAKA ,  Daisuke IKEFUJI

IPC: G01S7/02 ,  G01S13/32 ,  G01S13/89

Abstract: The radar device 10 includes radar signal transmission and receiving means 11 for obtaining radar signals, based on reflected waves received by a plurality of receiving antennas, movement estimation means 12 for estimating a movement of an object that may appear in a radar image, movement discretization means 13 for discretizing the estimated movement, signal dividing means 14 for dividing the radar signals into a plurality of groups, Fourier transform processing means 15 for applying Fourier transform to the radar signals of each of the groups, phase-compensation and synthesis processing means 16 for synthesizing results of the Fourier transform after performing phase compensation corresponding to the movement of the object on the results of the Fourier transform, and imaging processing means 17 for generating the radar image from the synthesized result of the Fourier transform.