Title :
Setup considerations for calibration of a stereovision system for long range obstacle detection
Author :
Gauci, Jason ; Zammit-Mangion, David
Author_Institution :
Dept. of Aerosp. Eng. Sch. of Eng. Cranfield, Univ. Bedfordshire, Cranfield
Abstract :
Stereo vision systems require calibration to allow ranging to be successfully used for obstacle detection purposes. For long range (>50 m) obstacle detection, two types of calibration processes are required in order to quantify the intrinsic and extrinsic properties of the optical setup. This paper addresses the scope of these two calibration processes and presents the results of a study that focuses on the impact of the number of calibration images used in intrinsic calibration and the effect of positional errors in extrinsic calibration on ranging accuracy.
Keywords :
object detection; stereo image processing; image calibration; long range obstacle detection; positional errors; stereovision system; Calibration; Cameras; Carbon capture and storage; Error correction; Image reconstruction; Inspection; Navigation; Parameter estimation; Pixel; Stereo vision; camera calibration; obstacle detection; stereovision;
Conference_Titel :
Communications, Control and Signal Processing, 2008. ISCCSP 2008. 3rd International Symposium on
Conference_Location :
St Julians
Print_ISBN :
978-1-4244-1687-5
Electronic_ISBN :
978-1-4244-1688-2
DOI :
10.1109/ISCCSP.2008.4537387
