As MrQuincle replied, its main competitor is RANSAC, and FHT is one of the best tools in finding straight lines on images: it is indifferent to dashed lines, in

As MrQuincle replied, its main competitor is RANSAC, and FHT is one of the best tools in finding straight lines on images: it is indifferent to dashed lines, intersections, etc. Also, compared to RANSAC it's deterministic and doesn't involve any binarisation (for RANSAC you need a set of points, not a continuous image). There's also a neat trick of finding vanishing points via double Hough transform. See also [0] for an example of HT application to road markup recognition. [0] pdf http://iitp.ru/upload/publications/7226/2015_ICMV_D.%20Krokhina%20V.%20Blinov%20S.%20Gladilin%20I.%20Tarhanov%20V.%20Postnikov%20Fast%20roadway%20detection%20using%20car%20cabin%20video%20camera.pdf http://iitp.ru/upload/publications/7226/2015_ICMV_D.%20Krokh...