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chapterNo Access
A NEW 26-CONNECTED OBJECTS SURFACE TRACKING ALGORITHM AND ITS RELATED PRAM VERSION
- LAURENT PERROTON
Parallel Image Analysis: Theory and Applications01 Dec 1995
Preview Abstract
In this paper, we show the interest of the 3D discrete surface notion for the extraction of object contours. We introduce some notions related to surfaces of 18-and 26-connected objects in 3D discrete images, and a new sequential algorithm to extract the surface and contours of 26-connected objects. Then, we present a PRAM related algorithm to construct the successor function of the surface graph. The complexity of the algorithm is O(log N) for an N × N × N image, with N³ processors.

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