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Reseach Article

An Application for Stereo Vision based Vehicle/Obstacle Detection for Driver Assistance

by K S Chidanand Kumar
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 69 - Number 21
Year of Publication: 2013
Authors: K S Chidanand Kumar
10.5120/12094-8198

K S Chidanand Kumar . An Application for Stereo Vision based Vehicle/Obstacle Detection for Driver Assistance. International Journal of Computer Applications. 69, 21 ( May 2013), 13-17. DOI=10.5120/12094-8198

@article{ 10.5120/12094-8198,
author = { K S Chidanand Kumar },
title = { An Application for Stereo Vision based Vehicle/Obstacle Detection for Driver Assistance },
journal = { International Journal of Computer Applications },
issue_date = { May 2013 },
volume = { 69 },
number = { 21 },
month = { May },
year = { 2013 },
issn = { 0975-8887 },
pages = { 13-17 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume69/number21/12094-8198/ },
doi = { 10.5120/12094-8198 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T21:30:53.934831+05:30
%A K S Chidanand Kumar
%T An Application for Stereo Vision based Vehicle/Obstacle Detection for Driver Assistance
%J International Journal of Computer Applications
%@ 0975-8887
%V 69
%N 21
%P 13-17
%D 2013
%I Foundation of Computer Science (FCS), NY, USA
Abstract

A stereo vision based vehicle/obstacle detection system has been proposed that generates alarms when vehicles/obstacles are detected in vicinity of near/mid region. Numerous techniques have been applied to detect vehicles/obstacles using a forward facing monocular camera mounted inside a vehicle. This paper presents a methodology for vehicle/obstacle detection using high resolution stereo camera. Stereo cameras are calibrated; stereo images are undistorted and rectified using stereo calibration parameters. Stereo disparity image is then generated using stereo matching algorithm. To localize vehicles/obstacles, search space reduction forms a preliminary step by eliminating sky region retaining only road regions on which vehicles/obstacles are embedded. Periodic peaks in the histogram of stereo disparity image are used as a cue in vehicle/obstacle detection process. Line profiles corresponding to each periodic peak are extracted using vertical strokes. Statistical features are extracted and analyzed for each line profiles to determine the presence/absence of vehicles/obstacles. If vehicles/obstacles are detected in a line profile, then bounding box of blobs are detected using vertical projection technique. Blobs detected from all the gray level profiles are merged together and connected component analysis is applied to count the number of vehicles/obstacles. Color mapping of vehicles/obstacles detected are done to indicate the presence of vehicles/obstacles in near region or mid region thereby generating appropriate alarms.

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Index Terms

Computer Science
Information Sciences

Keywords

Camera calibration Stereo rectification stereo matching Inverse perspective mapping (IPM) Vertical projection Vertical stroke Feature extraction