Title:
METHODS AND SYSTEMS FOR TRAFFIC MONITORING
Document Type and Number:
WIPO Patent Application WO/2017/032335
Kind Code:
A1
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.
Inventors:
LU WEI (CN)
LI QIANKUN (CN)
PAN SHIZHU (CN)
GENG JICHAO (CN)
SUN XIAOHUI (CN)
PAN HAIJIANG (CN)
WANG JINTING (CN)
LI QIANKUN (CN)
PAN SHIZHU (CN)
GENG JICHAO (CN)
SUN XIAOHUI (CN)
PAN HAIJIANG (CN)
WANG JINTING (CN)
Application Number:
PCT/CN2016/096837
Publication Date:
March 02, 2017
Filing Date:
August 26, 2016
Export Citation:
Assignee:
ZHEJIANG DAHUA TECHNOLOGY CO (CN)
International Classes:
G06V10/28; H04N5/232; G06V10/44; G06V10/75; G06V10/98; H04N13/239
Foreign References:
| CN105157608A | 2015-12-16 | |||
| CN105551020A | 2016-05-04 | |||
| CN105072346A | 2015-11-18 | |||
| CN104236478A | 2014-12-24 | |||
| CN103075973A | 2013-05-01 | |||
| CN104506779A | 2015-04-08 | |||
| CN103162639A | 2013-06-19 | |||
| US20070247531A1 | 2007-10-25 |
Other References:
See also references of EP 3323237A4
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