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ICIP
2002
IEEE
16 years 8 months ago
Polynomial features for robust face authentication
In this paper we introduce the DCT-mod2 facial feature extraction technique which utilizes polynomial coefficients derived from 2-D DCT coefficients of spatially neighbouring bloc...
Conrad Sanderson, Kuldip K. Paliwal
ICIP
2001
IEEE
16 years 8 months ago
Optimal radial contour tracking by dynamic programming
A common problem in most active contour methods is that the recursive searching scheme can only return a local optimal solution. Furthermore, the internal energy of the snake is n...
Yunqiang Chen, Thomas S. Huang, Yong Rui
ICIP
2001
IEEE
16 years 8 months ago
High-quality isosurface rendering with exact gradient
We address the task of rendering by ray tracing the isosurface of a high-quality continuous spline model of volumetric discrete and regular data. By expressing the spline model as...
Michael Unser, Philippe Thévenaz
ICPR
2004
IEEE
16 years 8 months ago
Estimation of the Size and Location of Multiple Area Light Sources
Most illuminant estimation algorithms worked on point light sources or directional light sources. Little attempt has been made, however, to estimate area light sources. In this pa...
Chandra Kambhamettu, Wei Zhou
ICPR
2002
IEEE
16 years 7 months ago
3D Real-Time Head Tracking Fusing Color Histograms and Stereovision
A system that performs the tracking of a human head in 3D in real time is presented. The head shape is modeled by an ellipse with a trained color histogram of skin and hair sample...
Francesc Moreno, Adrià Tarrida, Juan Andrad...