This paper presents a camera calibration method for far-range stereo-vision used for driving environment perception on highways. For a high accuracy stereovision system the most critical camera parameters are the relative extrinsic parameters which are describing the geometry of the stereo-rig. Experiments proved that even a few seconds drift of the relative camera angles can lead to disastrous consequences in the whole stereo-vision process: incorrect epipolar lines and consequently lack of reconstructed 3D points. Therefore we propose an off-line method able to give a very accurate estimation of these parameters and on-line methods for monitoring their stability in time taking into account the real-world automotive conditions, which can introduce drifts to the initial parameters due vibrations, temperature variations etc.
Camera Calibration Method for Far Range Stereovision Sensors Used in Vehicles
2006 IEEE Intelligent Vehicles Symposium ; 356-363
2006-01-01
1799420 byte
Conference paper
Electronic Resource
English
Camera Calibration Method for Far Range Stereovision Sensors Used in Vehicles
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