4 March 2015 Topview stereo: combining vehicle-mounted wide-angle cameras to a distance sensor array
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The variety of vehicle-mounted sensors in order to fulfill a growing number of driver assistance tasks has become a substantial factor in automobile manufacturing cost. We present a stereo distance method exploiting the overlapping field of view of a multi-camera fisheye surround view system, as they are used for near-range vehicle surveillance tasks, e.g. in parking maneuvers. Hence, we aim at creating a new input signal from sensors that are already installed. Particular properties of wide-angle cameras (e.g. hanging resolution) demand an adaptation of the image processing pipeline to several problems that do not arise in classical stereo vision performed with cameras carefully designed for this purpose. We introduce the algorithms for rectification, correspondence analysis, and regularization of the disparity image, discuss reasons and avoidance of the shown caveats, and present first results on a prototype topview setup.
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Sebastian Houben, Sebastian Houben, "Topview stereo: combining vehicle-mounted wide-angle cameras to a distance sensor array", Proc. SPIE 9407, Video Surveillance and Transportation Imaging Applications 2015, 940709 (4 March 2015); doi: 10.1117/12.2082625; https://doi.org/10.1117/12.2082625


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