Skip to Main Content
A new implementation of the minimum spanning tree (MST) phase unwrapping method is presented. The time complexity of the MST method is reduced from O(n 2) to O(n log 2 n), where n is the number of pixels in the phase map. Typical 256×256 phase maps from magnetic resonance imaging can be unwrapped in seconds, compared with tens of minutes with the O(n 2) implementation. This makes the pixel-level MST method time efficient and practically attractive.