Fig. 10From: Line and circle detection using dense one-to-one Hough transforms on greyscale imagesGround truth and matching principles. a Ground truth curves superimposed (in blue) on the image. b Corresponding point cloud in the parameter space with its Voronoi tessellation. The line {θ=0} is represented to mark the extension of the diagram to negative values of θ. c Detected curves (in red). d Matching the candidate curves in Hough spaceBack to article page