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Z-QuadTree : une nouvelle structure de quadtree pour cartes de profondeur

Abstract : This paper presents a data structure "Z-quadtree" that helps reducing the number of quads in a quadtree extracted from a depth map. The method focuses on areas around depth discontinuities. In a classical quadtree, the decomposition is very fine around discontinuities, even if background and foreground surfaces are planar. The proposed method consists in fusing background quads together, while keeping foreground quads that describe the outline of an object. First results have shown that the number of quads could be reduced by 20 to 25%, without decrease of the modeling quality.
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Submitted on : Thursday, May 26, 2011 - 8:23:30 PM
Last modification on : Friday, January 8, 2021 - 3:42:02 AM
Long-term archiving on: : Saturday, August 27, 2011 - 2:26:59 AM


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  • HAL Id : inria-00596246, version 1


Thomas Colleu, Dorra Riahi, Luce Morin. Z-QuadTree : une nouvelle structure de quadtree pour cartes de profondeur. ORASIS - Congrès des jeunes chercheurs en vision par ordinateur, INRIA Grenoble Rhône-Alpes, Jun 2011, Praz-sur-Arly, France. ⟨inria-00596246⟩



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