This book constitutes the refereed proceedings of the 11th International Conference on Discrete Geometry for Computer Imagery, DGCI 2003, held in Naples, Italy, in November 2003.The 49 revised full papers presented together with 3 invited papers were carefully reviewed and selected from 68 submissions.

Discrete Geometry for Computer Imagery.- Topological Digital Topology.- Fuzzy Spatial Relationships from Mathematical Morphology for Model-Based Pattern Recognition and Spatial Reasoning.- Shape Similarity and Visual Parts.- On the Morphological Processing of Objects with Varying Local Contrast.- Watershed Algorithms and Contrast Preservation.- Digital Flatness.- Shape Preserving Digitization of Ideal and Blurred Binary Images.- Towards Digital Cohomology.- New Results about Digital Intersections.- On Local Definitions of Length of Digital Curves.- Characterising 3D Objects by Shape and Topology.- Homotopic Transformations of Combinatorial Maps.- Combinatorial Topologies for Discrete Planes.- Convex Structuring Element Decomposition for Single Scan Binary Mathematical Morphology.- Designing the Lattice for Log-Polar Images.- On Colorations Induced by Discrete Rotations.- Binary Shape Normalization Using the Radon Transform.- 3D Shape Matching through Topological Structures.- Contour-Based Shape Representation for Image Compression and Analysis.- Systematized Calculation of Optimal Coefficients of 3-D Chamfer Norms.- Look-Up Tables for Medial Axis on Squared Euclidean Distance Transform.- Discrete Frontiers.- Towards an Invertible Euclidean Reconstruction of a Discrete Object.- Reconstruction of Discrete Surfaces from Shading Images by Propagation of Geometric Features.- Shape Representation and Indexing Based on Region Connection Calculus and Oriented Matroid Theory.- Incremental Algorithms Based on Discrete Green Theorem.- Using 2D Topological Map Information in a Markovian Image Segmentation.- Topology Preservation and Tricky Patterns in Gray-Tone Images.- Shortest Route on Height Map Using Gray-Level Distance Transforms.- On the Use of Shape Primitives for Reversible Surface Skeletonization.- d-Dimensional Reverse Euclidean Distance Transformation and Euclidean Medial Axis Extraction in Optimal Time.- Efficient Computation of 3D Skeletons by Extreme Vertex Encoding.- Surface Area Estimation of Digitized Planes Using Weighted Local Configurations.- Surface Area Estimation in Practice.- Perimeter and Area Estimations of Digitized Objects with Fuzzy Borders.- Geodesic Object Representation and Recognition.- A Fast Algorithm for Reconstructing hv-Convex 8-Connected but Not 4-Connected Discrete Sets.- Stability in Discrete Tomography: Linear Programming, Additivity and Convexity.- Removal and Contraction for n-Dimensional Generalized Maps.- The Generation of N Dimensional Shape Primitives.- Geometric Measures on Arbitrary Dimensional Digital Surfaces.- Nonlinear Optimization for Polygonalization.- A Representation for Abstract Simplicial Complexes: An Analysis and a Comparison.- A Computation of a Crystalline Flow Starting from Non-admissible Polygon Using Expanding Selfsimilar Solutions.- Morphological Image Reconstruction with Criterion from Labelled Markers.- Intertwined Digital Rays in Discrete Radon Projections Pooled over Adjacent Prime SizedArrays.- Power Law Dependencies to Detect Regions of Interest.- Speed Up of Shape from Shading Using Graduated Non-convexity.- Tissue Reconstruction Based on Deformation of Dual Simplex Meshes.- Spherical Object Reconstruction Using Simplex Meshes from Sparse Data.- A System for Modelling in Three-Dimensional Discrete Space.- Interactively Visualizing 18-Connected Object Boundaries in Huge Data Volumes.