公开(公告)号：US20170294118A1

公开(公告)日：2017-10-12

申请号：US15300947

申请日：2015-12-23

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Zhiqiang Chen ,  Li Zhang ,  Jianmin Li ,  Ziran Zhao ,  Yaohong Liu ,  Qiang Li ,  Zheng Hu ,  Jianping Gu ,  Ying Li

IPC: G08G1/054 ,  G08G1/017

CPC classification number: G08G1/054 ,  G01V5/0008 ,  G01V5/0016 ,  G06K9/4604 ,  G06K9/4642 ,  G08G1/015 ,  G08G1/017

Abstract: Disclosed is a vehicle identification method and system. The method includes: acquiring appearance information of an inspected vehicle; obtaining external features of the vehicle based on the appearance information; acquiring a transmission image of the vehicle and obtaining internal features of the vehicle from the transmission image; forming descriptions on the vehicle at least based on the external features and the internal features; and determining a vehicle model of the vehicle from a vehicle model databased by utilizing the descriptions. This method merges various types of modality information, especially introducing the transmission image, and combines the internal structure information with the appearance information, so that the present disclosure can identify a vehicle model more practically.

公开(公告)号：US09772427B2

公开(公告)日：2017-09-26

申请号：US14892640

申请日：2014-01-17

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Kejun Kang ,  Jianmin Li ,  Ying Li ,  Yuanjing Li ,  Wei Yin ,  Juan Zheng ,  Lei Zeng

IPC: G01V5/00

CPC classification number: G01V5/0041 ,  G01V5/0025

Abstract: The disclosure provides a multi-power multi-dosage accelerator. The multi-power multi-dosage accelerator comprises an electron gun configured to provide a first voltage of the electron gun and a second voltage of the electron gun, and an accelerating tube configured to generate a first X-ray having a first dosage and first power according to the first voltage of the electron gun and generate a second X-ray having a second dosage and second power according to the second voltage of the electron gun, wherein the first dosage is a dosage which can be accepted by human bodies and is much less than the second dosage, the first X-ray is used for inspecting a first area where a person is located, and the second X-ray is used for inspecting a second area where goods are located.

公开(公告)号：US20170160426A1

公开(公告)日：2017-06-08

申请号：US15030511

申请日：2015-07-24

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Jianmin Li ,  Lei Zeng ,  Qiang Li ,  Wen Wei

IPC: G01V5/00 ,  G06K7/10 ,  G06K9/62 ,  G01N23/04

CPC classification number: G01V5/0016 ,  G01N23/04 ,  G01N2223/401 ,  G01N2223/408 ,  G06K7/10366 ,  G06K9/00624 ,  G06K9/6201 ,  G06K2209/23

Abstract: A method for inspecting a vehicle includes acquiring a unique identity number of an insepected vehicle, carrying out X-ray scanning on the inspected vehicle to acquire an X-ray image of the inspected vehicle, retrieving at least one historical inspected image related to the unique identity number from a historical inspection database, determining, based on one template image selection algorithm selected from multiple template image selection algorithms, one of the at least one historical inspected images as a template image, determining a difference region between the X-ray image and the template image, and presenting the difference region to a user.