Titlebook: Discrete Geometry for Computer Imagery; 9th International Co Gunilla Borgefors,Ingela Nyström,Gabriella Sanniti Conference proceedings 2000

安装

A New Means for Investigating 3-Manifoldsd as finite cell complexes. The paper contains definitions and a theorem necessary to transfer some basic knowledge of the classical topology to finite topological spaces. The method is based on subdividing the given set into blocks of simple cells in such a way, that a .-dimensional block be homeom

BOOST

Nearness in Digital Images and Proximity Spacesproximity space. It is this notion, together with “nearness preserving mappings”, that we investigate in this paper. We first review basic examples as they naturally occur in digital topologies, making also brief comparison studies with other concepts in digital geometry. After this we characterize

乞丐

Fecal-Impaction

Hausdorff Discretizations of Algebraic Sets and Diophantine Sets we give some decidable and undecidable properties concerning Hausdorff discretizations of algebraic sets and we prove that some Hausdorff discretizations of algebraic sets are diophantine sets. We refine the last results for algebraic curves and more precisely for straight lines.

羽毛长成

An Algorithm for Reconstructing Special Lattice Sets from Their Approximate X-Rays directions. We provide a polynomial-time algorithm for reconstructing Q-convex sets from their “approximate” X-rays. A Qconvex set is a special subset of Z2 having some convexity properties. This algorithm can be used for reconstructing convex subsets of Z2 from their exact X-rays in some sets of f

FISC

A Question of Digital Linear Algebrars, is solved by the Gauss pivot. The problem investigated in this paper is very close to this classical question: we denote . the function of ℝ. defined by . and the question is now to determine if a given vector v ∈ ℤ. belongs to .. This problem can be easily seen as a sytem of inequalities and so

珐琅

Reconstruction of Discrete Sets with Absorption when some known absorption is supposed. It is math-ematically interesting when the absorbed projection of a matrix element is the same as the absorbed projection of the next two consecutive el-ements together. We show that, in this special case, the non-uniquely determined matrices contain a certai

inspired

慢跑

溃烂

Determining Visible Points in a Three-Dimensional Discrete Spaceother object points is determined by shooting a discrete ray from each surface point towards the center of projection considering the intersection of the ray with other object points. Since the projection of points onto the viewing plane is done by a continuous mapping, additionally to the discrete