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ACISP
2005
Springer
14 years 3 months ago
Dynamic Group Key Agreement in Tree-Based Setting
We present a provably secure tree based authenticated group key agreement protocol in dynamic scenario. Bilinear pairing and multi-signature are at the heart of our protocol. We p...
Ratna Dutta, Rana Barua
ACIVS
2008
Springer
14 years 4 months ago
Geodesic Active Contours with Combined Shape and Appearance Priors
We present a new object segmentation method that is based on geodesic active contours with combined shape and appearance priors. It is known that using shape priors can significan...
Rami Ben-Ari, Dror Aiger
ACSC
2008
IEEE
14 years 4 months ago
Privacy preserving set intersection based on bilinear groups
We propose a more efficient privacy preserving set intersection protocol which improves the previously known result by a factor of O(N) in both the computation and communication c...
Yingpeng Sang, Hong Shen
MMSP
2008
IEEE
216views Multimedia» more  MMSP 2008»
14 years 4 months ago
Using stochastic gradient-descent scheme in appearance model based face tracking
— Active appearance model (AAM) has been widely used in face tracking and recognition. However, accuracy and efficiency are always two main challenges with the AAM search. The pa...
Zhidong Li, Jing Chen, Adrian Chong, Zhenghua Yu, ...
ICPR
2004
IEEE
14 years 11 months ago
An Enhanced Appearance Model for Ultrasound Image Segmentation
Active Appearance Model (AAM) [1] had been popular on object segmentation for medical images. However, its performance is not good on Ultrasound (US) images. In this paper, we pro...
Feng Cen, Hung-Tat Tsui, Tze Kin Lau, Yifeng Jiang...