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<p>We propose a method to locate three vanishing points on an image, corresponding to three orthogonal directions of the scene. This method is based on two cascaded Hough transforms. We show that, even in the case of synthetic images of high quality, a naive approach may fail, essentially because of the errors due to the limitation of the image size. We take into account these errors as well as errors due to detection inaccuracy of the image segments, and provide a method efficient, even in the case of real complex scenes.</p>
Hough transforms; error statistics; edge detection; image processing; vanishing points location; Hough transform; orthogonal direction detection; synthetic images; image size; detection inaccuracy; image segments; real complex scenes; bias

J. Lopez-Krahe, H. Maitre and E. Lutton, "Contribution to the Determination of Vanishing Points Using Hough Transform," in IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 16, no. , pp. 430-438, 1994.
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