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ICIP
2009
IEEE
13 years 6 months ago
Multiregion level-set segmentation of synthetic aperture radar images
Due to the presence of speckle, segmentation of SAR images is generally acknowledged as a difficult problem. A large effort has been done in order to cope with the influence of sp...
Michael Ying Yang
MEMICS
2010
13 years 3 months ago
Haptic Rendering Based on RBF Approximation from Dynamically Updated Data
In this paper, an extension of our previous research focused on haptic rendering based on interpolation from precomputed data is presented. The technique employs the radial-basis ...
Jan Fousek, Tomas Golembiovsky, Jiri Filipovic, Ig...
CVPR
1997
IEEE
12 years 5 months ago
Gradient Vector Flow: A New External Force for Snakes
Snakes, or active contours, are used extensively in computer vision and image processing applications, particularly to locate object boundaries. Problems associated with initial...
Chenyang Xu, Jerry L. Prince
CVPR
2000
IEEE
14 years 10 months ago
Variable Albedo Surface Reconstruction from Stereo and Shape from Shading
We presen t a multiview method for the computation of object shape and re ectance characteristics based on the integration of shape from shading (SFS) and stereo, for nonconstan t...
Dimitris Samaras, Dimitris N. Metaxas, Pascal Fua,...
ICCS
2007
Springer
14 years 3 months ago
Dynamic Tracking of Facial Expressions Using Adaptive, Overlapping Subspaces
We present a Dynamic Data Driven Application System (DDDAS) to track 2D shapes across large pose variations by learning non-linear shape manifold as overlapping, piecewise linear s...
Dimitris N. Metaxas, Atul Kanaujia, Zhiguo Li