|Table of Contents|

Fast measuring of axle distance difference based on monocular vision for ground mark recognition of vehicular wheel(PDF)

长安大学学报(自然科学版)[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年05期
Page:
107-111
Research Field:
Publishing date:
2009-10-20

Info

Title:
Fast measuring of axle distance difference based on monocular vision for ground mark recognition of vehicular wheel
Author(s):
PAN Hongda ZHANG Libin JIA Zhengrui SHAN Hongmei WEI Xiaojun
School of Transportation, Jilin University, Changchun 130022, Jilin, China
Keywords:
automobile engineering monocular vision camera model ground mark axle distance difference
PACS:
U467.12
DOI:
-
Abstract:
To the situation that the measuring method currently used is unable to realize the accuracy and efficient detection, the fast detection system adopts monocular vision is proposed for testing the difference of automobile wheelbase. Based on the spatial alternation theory of word coordinate and computer image coordinate, the measuring model for the ground marks of vehicular wheels based on camera system of monocular vision is constructed, which realizes the precise camera calibration. For the accuracy recognition of ground marks, according to the analysis and comparison of various image processing methods, the recognition strategy for the center of the wheel ground mark based on Canny detector and morphologic manipulation is determined. The hardware and software of the testing system of axle distance is designed. The experiments show that the detection system achieves the requirement of realtime test and the precision is 1.0 mm. 1 tab, 7 figs, 15 refs.

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Last Update: 2009-10-20