22 search results - page 2 / 5 » An output-sensitive algorithm for persistent homology |
ESA
2010
Springer
13 years 5 months ago
2010
Springer
We define the robustness of a level set homology class of a function f : X R as the magnitude of a perturbation necessary to kill the class. Casting this notion into a group theor...
COMPGEOM
2011
ACM
12 years 8 months ago
2011
ACM
Given a continuous function f : X → IR on a topological space X, its level set f−1 (a) changes continuously as the real value a changes. Consequently, the connected components...
COMPGEOM
2009
ACM
13 years 11 months ago
2009
ACM
We study the problem of computing zigzag persistence of a sequence of homology groups and study a particular sequence derived from the levelsets of a real-valued function on a top...
CAIP
2007
Springer
13 years 8 months ago
2007
Springer
Abstract. This paper presents a new hybrid split-and-merge image segmentation method based on computational geometry and topology using persistent homology. The algorithm uses edge...
TVCG
2010
13 years 3 months ago
2010
—We are interested in 3-dimensional images given as arrays of voxels with intensity values. Extending these values to a continuous function, we study the robustness of homology c...