Sciweavers

208 search results - page 21 / 42
» On monotone hull operations
Sort
View
SCALESPACE
2009
Springer
14 years 1 months ago
Computational Geometry-Based Scale-Space and Modal Image Decomposition
In this paper a framework for defining scale-spaces, based on the computational geometry concepts of α-shapes, is proposed. In this approach, objects (curves or surfaces) of incr...
Anatole Chessel, Bertrand Cinquin, Sabine Bardin, ...
ASIAN
2006
Springer
152views Algorithms» more  ASIAN 2006»
13 years 11 months ago
Inferring Disjunctive Postconditions
Polyhedral analysis [9] is an abstract interpretation used for automatic discovery of invariant linear inequalities among numerical varia program. Convexity of this abstract domain...
Corneliu Popeea, Wei-Ngan Chin
DBPL
2007
Springer
102views Database» more  DBPL 2007»
14 years 1 months ago
A Theory of Stream Queries
Data streams are modeled as infinite or finite sequences of data elements coming from an arbitrary but fixed universe. The universe can have various built-in functions and predi...
Yuri Gurevich, Dirk Leinders, Jan Van den Bussche
DLOG
2008
13 years 9 months ago
Locality and Subsumption Testing in EL and Some of its Extensions
Abstract. We show that subsumption problems in EL and related description logics can be expressed as uniform word problems in classes of semilattices with monotone operators. We us...
Viorica Sofronie-Stokkermans
ICIP
2001
IEEE
14 years 9 months ago
Morphological scale-space analysis and feature extraction
This paper presents a morphological scale-space approach to the problem of feature extraction. The method relies on two steps: a hierarchical simplification step based on pyramids...
Corinne Vachier