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ICIP
2007
IEEE
14 years 11 months ago
Robust Image Segmentation with Mixtures of Student's t-Distributions
Gaussian mixture models have been widely used in image segmentation. However, such models are sensitive to outliers. In this paper, we consider a robust model for image segmentati...
Giorgos Sfikas, Christophoros Nikou, Nikolas P. Ga...
ICIP
2005
IEEE
14 years 3 months ago
Graph cut based segmentation of convoluted objects
Fundamental to any graph cut segmentation methods is the assignment of edge weights. The existing solutions typically use gaussian, exponential or rectangular cost functions with ...
Alex Yong Sang Chia, Vitali Zagorodnov
ICIAP
2007
ACM
14 years 4 months ago
Rigid Image Registration based on Pixel Grouping
We propose a pixel similarity-based algorithm enabling accurate rigid registration between single and multimodal images. The method relies on the partitioning of a reference image...
Demetrios Gerogiannis, Christophoros Nikou, Aristi...
ISCAS
2007
IEEE
134views Hardware» more  ISCAS 2007»
14 years 4 months ago
4.7pJ/pulse 7th Derivative Gaussian Pulse Generator for Impulse Radio UWB
Abstract—This paper presents a ultra low-power, lowcomplexity circuit to generate the monocycle pulse for Impulse Radio UWB (IR-UWB) applications. A 7th order derivative Gaussian...
Tuan-Anh Phan, Vladimir Krizhanovskii, Seok-Kyun H...
ESANN
2006
13 years 11 months ago
Degeneracy in model selection for SVMs with radial Gaussian kernel
We consider the model selection problem for support vector machines applied to binary classification. As the data generating process is unknown, we have to rely on heuristics as mo...
Tobias Glasmachers