Camera based position recognition for a road vehicle
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Abstract
A camera based position recognition system for a road vehicle. The environment in the direction of travel of the vehicle is acquired by a camera. Using the acquired image data, the position of the vehicle in its environment is determined with regard to an optical signature identified in the obtained image data. For determining the position of the vehicle, use is made of the knowledge of the relationship between the environment coordinate system of the optical signature and that of the camera coordinate system. In simplified manner, position determination occurs with regard to the optical signature on the basis of a template matching imposed on the image data. For this, a template or an optical signature recorded in memory is superimposed on the optical signature identified in the image data in the environment of the vehicle (template matching). From the parameters of this template matching (for example linear compression and rotation parameters) recognizing the existing coordinate system, the position of the vehicle relative to the optical signature can be directly deduced.
89 Citations
46 Claims
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1-23. -23. (Cancelled)
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24. A process for camera-based position recognition for a road vehicle, comprising:
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obtaining image data of the environment in the direction of travel of the vehicle using a camera, determining the position of the vehicle in its environment relative to an optical signature identified in the obtained image data on the basis of template matching imposed on the image data, and on the basis of knowledge of the relationship between the environment coordinate system and the camera coordinate system. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 45, 46)
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36. A device for camera based position recognition for a road vehicle, comprising:
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a camera for detecting the environment in the direction of travel of the vehicle, and an image processing unit with object recognition for determining the position of the vehicle with regard to an optical signature in the environment of the vehicle, a memory unit in which a template is stored corresponding to the optical signature, the memory unit in communication with the image processing unit for position determination, and a means for template matching accessible to the image processing unit, via which means the template can be superimposed over the image data stored in the memory. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44)
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Specification