Image Processing and Segmentation

a) The figure below shows a Hough transform result in the (m, c) (slope and intercept) parameter space. What is the approximate function of the longest line in image space?

b) Explain why (, ) parameter space (distance and angle) is better than (m, c) parameter space (slope and intercept) for line detection using Hough Transform.

400 350 25 200 150 -100 1.5 -1 0.5 0 0.5 400 350 25 200 150 -100 1.5 -1 0.5 0 0.5