Garment Design and Shape description for Sketch-Based Applications

Abstract : In the context of sketch–based applications, we address two important components of garment design and 3D object retrieval. We propose to sketch contours on a mannequin and generate quad meshes representing pieces of cloth. The core of the application depends on the meshing scheme that has to infer its geometry from the input boundary. We employ the permanence principle to allow more control over the influence of the input boundary polyline on the interior of generated mesh. This will facilitate the creation of folds that are strongest in curvature at the boundary and diminish towards the interior. Sketch–based 3D object retrieval is an evolving domain with many open problems including scalability and the diversity between human’s sketch inaccuracy and the accurate models in the databases. On this account, we present a new approach inspired by two main concepts. First, shape is defined by the topological and geometric relations between its parts. Second, representative views of an object defy part occlusion and symmetry. We propose a 2D shape descriptor that avoids accurate mathematical representations. Features on different levels of detail are embedded in a hierarchy and described by a rather simple set of geometric measures. Similarity between two shapes is estimated by a decision–based dynamic programming method that finds a minimal cost correspondence between features. We use the same shape definition to select up to two representative views of a 3D object. Our representation is compact and approximate allowing an extent of variability between the natures of matched objects. We also address the scalability issue by reducing the number of 2D views representing 3D objects to the minimal number ever proposed.
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Submitted on : Wednesday, October 7, 2015 - 11:32:24 AM
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Zahraa Yasseen. Garment Design and Shape description for Sketch-Based Applications. Graphics [cs.GR]. Telecom ParisTech, 2015. English. ⟨NNT : 2015-ENST-0035⟩. ⟨tel-01212781⟩

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