Search International and National Patent Collections

1. (WO2017032335) METHODS AND SYSTEMS FOR TRAFFIC MONITORING

Pub. No.:    WO/2017/032335    International Application No.:    PCT/CN2016/096837
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Sat Aug 27 01:59:59 CEST 2016
IPC: H04N 5/232
Applicants: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
Inventors: LU, Wei
LI, Qiankun
PAN, Shizhu
GENG, Jichao
SUN, Xiaohui
PAN, Haijiang
WANG, Jinting
Title: METHODS AND SYSTEMS FOR TRAFFIC MONITORING
Abstract:
A system and method for determining a dimension of a target. The method includes: determining a camera parameter, the camera parameter including at least one of a focal length, a yaw angle, a roll angle, a pitch angle, or a height of one or more cameras; acquiring a first image and a second image of an target captured by the one or more cameras; generating a first corrected image and a second corrected image by correcting the first image and the second image; determining a parallax between a pixel in the first corrected image and a corresponding pixel in the second corrected image; determining an outline of the target; and determining a dimension of the target based at least in part on the camera parameter, the parallax, and the outline of the target.