844 search results - page 127 / 169 » Homotopy in Digital Spaces |
MOBIHOC
2007
ACM
14 years 8 months ago
2007
ACM
A prerequisite for secure communications between two sensor nodes is that these nodes exclusively share a pairwise key. Although numerous pairwise key establishment (PKE) schemes ...
SMA
2009
ACM
14 years 3 months ago
2009
ACM
We present the “Dynamic Packing Grid” (DPG) data structure along with details of our implementation and performance results, for maintaining and manipulating flexible molecul...
STOC
2005
ACM
14 years 2 months ago
2005
ACM
A dynamic geometric data stream consists of a sequence of m insert/delete operations of points from the discrete space {1, . . . , ∆}d [26]. We develop streaming (1 + )-approxim...
ICIP
2006
IEEE
14 years 10 months ago
2006
IEEE
Copyright 2005 IEEE. Published in the 2006 International Conference on Image Processing (ICIP-2006), October 8-11, 2006, Atlanta, Georgia. Personal use of this material is permitt...
GIS
2007
ACM
14 years 9 months ago
2007
ACM
We consider the problem of extracting a river network and a watershed hierarchy from a terrain given as a set of irregularly spaced points. We describe TerraStream, a "pipeli...