Question

4. As we have seen, the Hough transform maps xy space to ab space by rewritin y = ax + b as b= -xa+y. (a) Is the inverse Hough transform unique, i.e., does a given straight line in ab space map to a unique point in xy space? (b) Consider the points (1,5), (3,9) and (4,11) in xy space. Generate their Hough trans- forms. (c) Deduce from the Hough transforms whether these points lie on a common straight line.

Answer 1

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