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Optimal blocs subdivision in the "Dividing-cubes" algorithm : application to the 3D medical imagery

Kebaili A., Boumghar F.

Machine Graphics and Vision

2000

Vol. 9, No. 1/2

281-288

In this article we present an optimisation of the execution time of the "dividing-cubes" alorithm. whose aim is to extract 3D surfaces from volumic images. These images are generally very voluminous and represents an pile up of many iso-surfaces, what require a considerable time to process them fpr extract the desired iso-surface. In first time it's matter of reducing the cover time of the 3D image by subdividing it into blocs of voxels, witch comes to visits a more reduce number of voxels. We propose in a second step, an optimization of the subdividing blocs parameters that allow us to have a bloc size the most suitable as possible, and permint to genetare a minimal execution time.Our propositions and formulations are made vaild by means of experiments carried out on processed images, and medical images.