Sufficient Propagation Euclidean Distance Transformation

A new Euclidean distance transformation (EDT) for binary images in ℤ n is introduced. We sequentialize the parallel method of Huang and Mitchell by restricting the propagation to sufficient propagation paths. Tests in ℤ 2 and in ℤ 3 show that the algorithm is significantly faster than other well known signed and unsigned EDTs. Combined with the method of Saito and Toriwaki, it also yields a fast parallel EDT.

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