Titlebook: Discrete Geometry for Computer Imagery; 18th IAPR Internatio Elena Barcucci,Andrea Frosini,Simone Rinaldi Conference proceedings 2014 Sprin

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Completions and Simple Homotopynd (.,.) may be transformed to a trivial couple by simple homotopic deformations that keep . inside .. Thus, these objects are linked by a “relative homotopy relation”..We formalize these notions by means of completions, which are inductive properties expressed in a declarative way. In a previous wo

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Anti-Aliased Euclidean Distance Transform on 3D Sampling Latticesd path finding. The anti-aliased Euclidean distance transform (AAEDT), previously presented for two-dimensional images, uses the gray-level information in, for example, area sampled images to calculate distances with sub-pixel precision. Here, we extend the studies of AAEDT to three dimensions, and

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Diastole

The Minimum Barrier Distance – Stability to Seed Point Positionractive user input. Different approaches are associated with different fundamental advantages as well as difficulties. In this paper, we investigate the stability of segmentation with respect to perturbations in seed point position for a recently introduced pseudo-distance method referred to as the

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Anonymous

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Parameter-Free and Multigrid Convergent Digital Curvature Estimators step. Focusing on multigrid convergent estimators, most of them require a user specified parameter to define the scale at which the analysis is performed (size of a convolution kernel, size of local patches for polynomial fitting, etc). In a previous work, we have proposed a new class of estimators

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Freeman Digitization and Tangent Word Based Estimatorse Freeman square box quantization is not well-defined for such curves, and discuss possible workarounds to deal with them. In the second part, we prove that first-order differential estimators (tangent, normal, length) based on tangent words are multi-grid convergent, for any (..) regular curve, wit