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- W2129210175 abstract "An entirely automatic algorithm of detection of van ishing points in images of urban stages is presented. This approach leans on a classic theorem of projective geometry (theorem of Chasles-Steiner), that permits to transform the problem of detection of the vanishing points from segments and their uncertainty into a problem of detection of circles in a cloud of points (every po int corresponds to a segment). The extraction of circle s uses a robust method of RanSac type, modified to be very fast in relation to techniques of accumulation (Hough ty pe or any other). This robust evaluation is refined then by an error propagation by least squares exploiting the individual variances of every segment. The develope d algorithm is robust, its precision is satisfactory and besides it is entirely automatic. Its proper workin g has been tested on a large number of images from varied urban landscapes." @default.
- W2129210175 created "2016-06-24" @default.
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- W2129210175 date "2008-01-01" @default.
- W2129210175 modified "2023-10-02" @default.
- W2129210175 title "Détection automatique des points de fuite et calcul de leur incertitude à l'aide de la géomét rie projective Automatic detection of vanishing points and their uncertainty based on projective geometry" @default.
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