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Jan Horn

Image-based Vectorial Velocity Measurement of Textured Surfaces

In automotive engineering magnitude and direction of the vehicle velocity is a very important information. Especially CMOS cameras allow a contactless optical measurement principle. These cameras are capable of acquiring high speed sequences of quickly moving objects using very short shutter times. By analyzing an image sequence of the moving road surface with digital image processing techniques, the relative motion between camera and road surface and thus the vehicle motion can be measured. This article describes the determination of vehicle motion parameters — velocity vector and yaw rate — from the observed road surface sequence acquired with a CMOS camera. Based on corresponding points in subsequent images transform parameters are estimated. Velocity vector and yaw rate can directly be calculated from these estimated parameters.

tm – Technisches Messen, Oldenbourg Wissenschaftsverlag

Print ISSN: 0171-8096
Volume: 72, 10/2005
Pages: 556 - 565

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