Precise, automatic and fast method for vanishing point detection

International audienceA new approach for vanishing point detection is described. This method is based on the theorem of Thales. The main contribution of this paper is the automatic and simultaneous detection of all vanishing points of the image that consists in detecting circles in a complex cloud of points. This extraction is performed without any prior knowledge of the internal calibration. An analysis of the error propagation is done in order to give quantitative elements on the precision of the detected vanishing points