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COMPGEOM
2010
ACM
15 years 12 months ago
Constructing Reeb graphs using cylinder maps
The Reeb graph of a scalar function represents the evolution of the topology of its level sets. In this video, we describe a near-optimal output-sensitive algorithm for computing ...
Harish Doraiswamy, Aneesh Sood, Vijay Natarajan
ACNS
2003
Springer
156views Cryptology» more  ACNS 2003»
15 years 10 months ago
An Efficient Tree-Based Group Key Agreement Using Bilinear Map
Secure and reliable group communication is an increasingly active research area by growing popularity in group-oriented and collaborative application. One of the important challeng...
Sangwon Lee, Yongdae Kim, Kwangjo Kim, DaeHyun Ryu
ICOST
2011
Springer
14 years 10 months ago
Fall Detection from Depth Map Video Sequences
Falls are one of the major risks for seniors living alone at home. Computer vision systems, which do not require to wear sensors, offer a new and promising solution for fall detec...
Caroline Rougier, Edouard Auvinet, Jacqueline Rous...
CVPR
2004
IEEE
16 years 8 months ago
BoostMap: A Method for Efficient Approximate Similarity Rankings
This paper introduces BoostMap, a method that can significantly reduce retrieval time in image and video database systems that employ computationally expensive distance measures, ...
Vassilis Athitsos, Jonathan Alon, Stan Sclaroff, G...
ICPR
2008
IEEE
16 years 8 months ago
Locally invariant texture analysis from the topographic map
In this paper, we present a set of texture features that are locally invariant to similarity or affinity. The proposed indexing scheme relies on the topographic map, a shape-based...
Gui-Song Xia, Julie Delon, Yann Gousseau