The coarse shape

Shape-Based Coarse Graining

Coarse view synthesis using shape-from-shading

This paper investigates the use of shape-from-shading for coarse view synthesis. The aim of our study is to determine whether needle-maps delivered by a new shape-from-shading (SFS) algorithm can be used as a compact object-representation for the purposes of e3ciently generating appearance manifolds. Speci4cally, we aim to show that the needle-maps can be used to generate novel object views und...

Estimating Coarse 3D Shape and Pose from the Bounding Contour

Single-view reconstruction of a smooth 3D object is an ill-posed problem. Surface cues such as shading and texture provide local constraints on shape, but these cues can be weak, making it a challenge to recover globally correct models. The bounding contour can play an important role in constraining this global integration. Here we focus in particular on information afforded by the overall elon...

Coarse coding of shape fragments ) ( Retinotopy ) Representation of structure

Intelligent processing of visual shapes implies the ability to solve the following core problems: Recognition: how to deal with novel views of shapes (generalization across viewpoint changes). Categorization: how to deal with novel instances of shape categories (generalization across shape changes). Meta-categorization: how to deal with radically novel inputs which may belong to none of the fam...

Coarse-to-Fine Isometric Shape Correspondence by Tracking Symmetric Flips

We address the symmetric flip problem that is inherent to multiresolution isometric shape matching algorithms. To this effect, we extend our previous work which handles the dense isometric correspondence problem in the original 3D Euclidean space via coarse-to-fine combinatorial matching. The key idea is based on keeping track of all optimal solutions, which may be more than one due to symmetry...