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DGCI
2008
Springer
13 years 5 months ago
Optimal Difference Operator Selection
Abstract. Differential operators are essential in many image processing applications. Previous work has shown how to compute derivatives more accurately by examining the image loca...
Peter Veelaert, Kristof Teelen
DGCI
2008
Springer
13 years 6 months ago
Gift-Wrapping Based Preimage Computation Algorithm
Based on a classical convex hull algorithm called Gift-Wrapping, the purpose of the paper is to provide a new algorithm for computing the vertices of a polytope called preimage - ...
Yan Gérard, Fabien Feschet, David Coeurjoll...
DGCI
2008
Springer
13 years 6 months ago
Geometric Feature Estimators for Noisy Discrete Surfaces
Abstract. We present in this paper robust geometric feature estimators on the border of a possibly noisy discrete object. We introduce the notion of patch centered at a point of th...
Laurent Provot, Isabelle Debled-Rennesson
DGCI
2008
Springer
13 years 6 months ago
Robust Estimation of Curvature along Digital Contours with Global Optimization
In this paper we introduce a new curvature estimator based on global optimisation. This method called Global Min-Curvature exploits the geometric properties of digital contours by ...
Bertrand Kerautret, Jacques-Olivier Lachaud
DGCI
2008
Springer
13 years 6 months ago
Selection of Local Thresholds for Tomogram Segmentation by Projection Distance Minimization
Abstract. Segmentation is an important step to obtain quantitative information from tomographic data sets. To this end, global thresholding is often used in practice. However, it i...
Kees Joost Batenburg, Jan Sijbers
DGCI
2008
Springer
13 years 6 months ago
First Results for 3D Image Segmentation with Topological Map
This paper presents the first segmentation operation defined within the 3D topological map framework. Firstly we show how a traditional segmentation algorithm, found in the literat...
Alexandre Dupas, Guillaume Damiand
DGCI
2008
Springer
13 years 6 months ago
Segmenting Simplified Surface Skeletons
A novel method for segmenting simplified skeletons of 3D shapes is presented. The so-called simplified Y-network is computed, defining boundaries between 2D sheets of the simplifie...
Dennie Reniers, Alexandru Telea
DGCI
2008
Springer
13 years 6 months ago
Decomposition and Construction of Neighbourhood Operations Using Linear Algebra
In this paper, we introduce a method to express a local linear operated in the neighbourhood of each point in the discrete space as a matrix transform. To derive matrix expressions...
Atsushi Imiya, Yusuke Kameda, Naoya Ohnishi
DGCI
2008
Springer
13 years 6 months ago
Statistical Template Matching under Geometric Transformations
Abstract. We present a novel template matching framework for detecting geometrically transformed objects. A template is a simplified representation of the object of interest by a s...
Alexander Sibiryakov