公开(公告)号：US20170237949A1

公开(公告)日：2017-08-17

申请号：US15300737

申请日：2015-11-06

Applicant: NUCTECH COMPANY LIMITED

Inventor： Yongming WANG ,  Yanwei XU ,  Weifeng YU

IPC: H04N7/18 ,  G06K9/32 ,  H04N5/247

CPC classification number: H04N7/188 ,  G06K7/00 ,  G06K9/209 ,  G06K9/3258 ,  G06K2209/01 ,  G06K2209/19 ,  H04N5/247 ,  H04N7/181

Abstract: The present disclosure provides a method of identifying a container number, including: arranging an image acquiring device along a passageway through which a container will pass, the image acquiring device comprising a trigger unit and a plurality of image acquiring units, at least two image acquiring units of the plurality of image acquiring units being adapted to respectively acquire images of the container numbers on at least two surfaces of a plurality of surfaces of the container passing through the passageway; acquiring the images of the container numbers on the at least two surfaces respectively by the at least two image acquiring units based on a signal from the trigger unit; and identifying the container number at least based on the images or data from the at least two image acquiring units about the container number. The present disclosure also relates to a system of identifying a container number.

公开(公告)号：US20220084336A1

公开(公告)日：2022-03-17

申请号：US17421709

申请日：2020-01-23

Applicant: NUCTECH COMPANY LIMITED ,  NUCTECH (BEIJING) COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Yongming WANG ,  Junjie TU ,  Chuan GAO ,  Yanwei XU ,  Weifeng YU ,  Chunguang ZONG ,  Yu HU

IPC: G07C5/08 ,  B60W40/10

Abstract: This disclosure provides a vehicle inspection method, apparatus, system, and computer-readable storage medium and relates to the field of security inspection technologies. The vehicle inspection method of the present disclosure includes: acquiring vehicle profile information of a vehicle through a first sensor that performs measurement in a direction perpendicular to a passage, and determining a feature point of the vehicle according to the vehicle profile information; determining a position of the vehicle in the passage through a second sensor that performs measurement in a direction along the passage, and determining a position of the feature point according to the position of the vehicle in the passage; and switching an operating mode of a ray source based on a preset strategy according to a position relation between the position of the feature point and the ray source.

公开(公告)号：US20180182126A1

公开(公告)日：2018-06-28

申请号：US15852103

申请日：2017-12-22

Applicant: Nuctech Company Limited

Inventor： Yanwei XU ,  Zheng HU ,  Yongming WANG ,  Chuan GAO ,  Weifeng YU ,  Qiang LI ,  Yuan MA ,  Jianping GU ,  Yu HU ,  Shangmin SUN

IPC: G06T7/73 ,  G06N3/08 ,  G06N3/04 ,  G06T3/40 ,  G06K9/00 ,  G06K9/62

CPC classification number: G06T7/74 ,  G06K9/00771 ,  G06K9/00791 ,  G06K9/6262 ,  G06N3/0472 ,  G06N3/08 ,  G06T3/40 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/30248

Abstract: The present disclosure discloses a method and system for identifying a part of a vehicle and a vehicle inspection system. The method includes: acquiring a vehicle body image sequence of a vehicle to be identified; reconstructing the vehicle body by using a first vehicle body reconstruction model generated through a deep learning algorithm and on the basis of the vehicle body image sequence, so as to acquire a vehicle body reconstruction image of the vehicle to be identified; and identifying a boundary identifier of the vehicle to be identified on the basis of the vehicle body reconstruction image of the vehicle to be identified.

公开(公告)号：US20200217963A1

公开(公告)日：2020-07-09

申请号：US16826235

申请日：2020-03-22

Applicant: NUCTECH COMPANY LIMITED ,  NUCTECH (BEIJING) COMPANY LIMITED

Inventor： Jian LI ,  Shangmin SUN ,  Yongming WANG ,  Yanwei XU ,  Weifeng YU ,  Yu HU ,  Chunguang ZONG

IPC: G01S17/58 ,  G01S17/08 ,  G01S7/48 ,  G01S7/481

Abstract: The present disclosure provides a laser speed measuring method, control device and a laser velocimeter, and relates to the technical field of security inspection. The laser speed measuring method comprises the steps of: acquiring detection data within a predetermined detection angle range in a plurality of paralleled horizontal planes having different heights, from a plurality of laser rays detected towards a road extending direction in the horizontal plane; acquiring three-dimensional point cloud data according to the detection data; determining a position of a measured object in the road extending direction according to the three-dimensional point cloud data; and determining a speed of the measured object according to the position change of the measured object along the road extending direction at different timing.

公开(公告)号：US20170160304A1

公开(公告)日：2017-06-08

申请号：US15278447

申请日：2016-09-28

Applicant: Nuctech Company Limited

Inventor： Junjie TU ,  Yanwei XU ,  Weifeng YU ,  Yongming WANG

IPC: G01P3/68 ,  G01S17/58 ,  G01P3/36

CPC classification number: G01P3/68 ,  G01P3/36 ,  G01S17/42 ,  G01S17/58 ,  G01S17/88 ,  G01V5/0016 ,  G08G1/04 ,  G08G1/052

Abstract: The present disclosure relates to a method and a device for monitoring a state of a moving object and a system for fast inspecting a vehicle. The method and a device for monitoring a state of a moving object positions and measures speed of the moving object by using a laser scanner. The device includes: a laser scanner configured to monitor at least one moving object entering a monitoring region, by emitting a plurality of laser beams of different angles to the at least one moving object with a preset scanning frequency; and a processing unit configured to, for each moving object, determine and output a relative position of the moving object with respect to the laser scanner at each time instance. It can significantly improve the accuracy of measuring a low speed of the moving object, and the laser scanner is easy to install and has a low cost.