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：US20230342879A1

公开(公告)日：2023-10-26

申请号：US18022424

申请日：2020-08-27

Applicant: NEC CORPORATION

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

IPC: G06T3/00 ,  G06T7/70 ,  G06T7/50

CPC classification number: G06T3/0093 ,  G06T7/70 ,  G06T7/50

Abstract: A data processing apparatus (100) includes a target object position determination unit (103) that determines, based on a picture image acquired by a first camera, a position of a target object in the picture image, a target object depth distance extraction unit (104) that extracts the depth distance from the first camera to the target object, a coordinate transformation unit (105) that transforms the position of the target object in the picture image into a position of the target object in a world coordinate system by using the depth distance, and a label transformation unit (106) that transforms, by using a position of the first camera in the world coordinate system and imaging information used when an image is generated from a measurement result of a sensor, the position of the target object in the world coordinate system into a label of the target object in the image.

公开(公告)号：US20220335724A1

公开(公告)日：2022-10-20

申请号：US17641016

申请日：2019-10-25

Applicant: NEC Corporation

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

IPC: G06V20/52 ,  G06V10/20 ,  G06T7/20

Abstract: The present invention provides a processing system (20) including an image capturing unit (21) that captures an image of a person passing through a first area and generates a person image indicating an appearance of the person, an electromagnetic wave transmission/reception unit (22) that emits an electromagnetic wave having a wavelength of 30 micrometers or more and 1 meter or less toward the person passing through the first area, and receives a reflected wave, a determination unit (23) that determines whether the person possesses a pre-designated object, based on a signal of the received reflected wave, and a registration unit (24) that registers, in a first list, the person image of the person determined to possess the pre-designated object.

公开(公告)号：US20190212429A1

公开(公告)日：2019-07-11

申请号：US16304731

申请日：2017-04-21

Applicant: NEC Corporation

Inventor： Shingo YAMANOUCHI

IPC: G01S13/34 ,  G01S13/536 ,  G01S13/58 ,  G01S7/35 ,  G01S13/93

CPC classification number: G01S13/34 ,  A61B5/00 ,  A61B5/02 ,  G01S7/352 ,  G01S13/536 ,  G01S13/58 ,  G01S13/584 ,  G01S13/93 ,  G01S13/931 ,  G08B13/194 ,  G08G1/16

Abstract: The object sensing device comprises a transmitter and a receiver. The transmitter includes an irradiation unit that irradiates an RF transmission signal having a periodically swept frequency. The receiver includes a reception unit that receives an RF reception signal being a reflected wave of the RF transmission signal reflected by the target, an IF signal generation unit that generates an IF signal by mixing the RF transmission signal with the RF reception signal, a position detection unit that detects a position of the target, based on amplitude of a one-dimensional spectrum calculated from the IF signal for each period in which the frequency is swept, and a displacement detection unit that detects displacement of the target, based on a phase of the one-dimensional spectrum at the detected position of the target.

公开(公告)号：US20190187266A1

公开(公告)日：2019-06-20

申请号：US16323031

申请日：2016-08-05

Applicant: NEC Corporation

Inventor： Shingo YAMANOUCHI

IPC: G01S13/04 ,  G01S7/35

CPC classification number: G01S13/04 ,  G01S7/354 ,  G01S13/46

Abstract: An object detection apparatus 1000 is an apparatus for detecting an object 1001 using an electric wave. The object detection apparatus 1000 is provided with: a transmission unit 1091 that emits, as a transmission signal, an electric wave having a frequency which continuously changes over time; a reception unit 1092 that receives an electric wave from the object 1001 as a reception signal, and generates a baseband signal by mixing the transmission signal acquired from the transmission unit 1091 with the received signal; and a data processing unit 1093 that estimates the incoming direction of the electric wave on the basis of the measurement value of a baseband signal for each of sampling times, identifies an intensity distribution of the electric wave on the basis of the estimated incoming direction for each sampling time, and detects the object 1001 on the basis of the identified intensity distribution.

公开(公告)号：US20240125929A1

公开(公告)日：2024-04-18

申请号：US17769602

申请日：2019-10-25

Applicant: NEC Corporation

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

IPC: G01S17/06

CPC classification number: G01S17/06

Abstract: A target object detection apparatus (20) includes an acquisition unit (210), a likelihood information generation unit (220), and a determination unit (230). The acquisition unit (210) acquires an IF signal from an irradiation apparatus (10) at a plurality of timings. The likelihood information generation unit (220) executes, by processing the IF signal, processing of generating, with respect to each of a plurality of IF signals, likelihood information for a region (hereinafter, referred to as a target object region) having a possibility in that an accompaniment, i.e., a target object is present. The likelihood information indicates a distribution of presence probabilities of a target object in at least a height direction in a target object region. Then, the determination unit (230) determines a presence or absence of a target object, by using likelihood information generated for each of a plurality of target object regions.

公开(公告)号：US20220244377A1

公开(公告)日：2022-08-04

申请号：US17626199

申请日：2019-07-22

Applicant: NEC Corporation

Inventor： Masayuki ARIYOSHI ,  Shingo YAMANOUCHI ,  Kazumine OGURA ,  Tatsuya SUMIYA

IPC: G01S13/89 ,  E06B3/90

Abstract: An inspection system uses radio waves to inspect the state of an object at low cost and efficiently, the foregoing possible as a result of the system comprising: a measurement unit that measures reflected waves from an object making a prescribed movement, the waves having been generated by projecting radio waves to the object; a moving body that comprises the measurement unit and moves so that the relative positional relationship between the measurement unit and the object changes with the passage of time; and a generation unit that generates information representing the state of the object by performing signal processing on a signal indicated by the reflected waves.

公开(公告)号：US20210239829A1

公开(公告)日：2021-08-05

申请号：US16972155

申请日：2018-06-06

Applicant: NEC Corporation

Inventor： Kazumine OGURA ,  Masayuki ARIYOSHI ,  Yuzo SENDA ,  Osamu HOSHUYAMA ,  Taichi TANAKA ,  Daisuke IKEFUJI ,  Shingo YAMANOUCHI

IPC: G01S13/90 ,  G01S7/04 ,  G01S13/32 ,  G01S13/86

Abstract: A radar signal imaging device 30 includes: a transmission unit 31 which transmits a radar signal toward an object to be imaged that is a non-rigid body; a position estimation unit 32 which estimates the position of the object; an oscillation degree estimation unit 33 which estimates an oscillation degree which is a degree of change within a predetermined period in the relative positions of feature points constituting the object; and a synthetic aperture processing unit 34 which performs synthetic aperture processing on the radar signal reflected by the object on the basis of the estimated position of the object and the estimated oscillation degree.

公开(公告)号：US20210149034A1

公开(公告)日：2021-05-20

申请号：US16628117

申请日：2018-07-04

Applicant: NEC Corporation

Inventor： Shingo YAMANOUCHI

IPC: G01S13/04

Abstract: An object detection apparatus 1000 includes: a transmitting unit 1101 configured to emit, to an object 1003, radio waves that serve as transmission signals; a receiving unit 1102 configured to receive the reflected radio waves as reception signals; a spectrum calculation unit 1103 configured to calculate, based on the transmission signals and the reception signals, a spectrum in which a region of a position parameter and a region of a shape parameter of the object 1003 are taken as domains; and a parameter value calculation unit 1107 configured to calculate, based on the calculated spectrum, a value of the position parameter of the object 1003 and a value of the shape parameter thereof.