Fig. 4From: Line and circle detection using dense one-to-one Hough transforms on greyscale imagesInfluence of the multiscale: topographic close up around a maximum in the (θ,ρ) space for the 1-to-1 line DHT, using one single fine scale (a): σ=1.0, one single coarse scale (b): σ=4.0 and three scales (c): σ∈{1.0,2.0,4.0}Back to article page