METHOD FOR DETERMINING POSITION AND ORIENTATION OF VEHICLE TRAILERS
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United States of America Patent
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N/A
Issued Date -
Mar 3, 2011
app pub date -
Apr 8, 2009
filing date -
Apr 8, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and system for determining orientation and positioning of a vehicle trailer. A digital camera is placed on a vehicle. The camera is pointed to a trailer attached to the vehicle. The camera acquires images of the trailer. These images are processed and spatial positioning and orientation of the trailer is determined based on image processing. A special marker visible by the camera is set on the trailer. Relative positions of devices attached to the vehicle—global positioning receiver, spatial orientation measuring device and the digital camera are measured. When each digital frame is formed, coordinates and orientation data of the camera are measured. Pixels corresponding to the marker in the image are determined. A simplified copy of the image, containing only the data related to the marker pixels, is generated. The marker pixels are used for calculating position and azimuth orientation of the marker. The azimuth orientation of the trailer is calculated based on calculated azimuth orientation of the marker.
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