Sciweavers

PRL
2006
88views more  PRL 2006»
13 years 11 months ago
Physical optics modelling of millimetre-wave personnel scanners
We describe the physical-optics modelling of a millimetre-wave imaging system intended to enable automated detection of threats hidden under clothes. This paper outlines the theor...
Beatriz Grafulla-González, Katia Lebart, An...
PRL
2006
100views more  PRL 2006»
13 years 11 months ago
Application of LVQ to novelty detection using outlier training data
We propose to use learning vector quantization (LVQ) in novelty detection where a few outliers exist in training data. The codebook update of original LVQ is modified and the sche...
Hyoungjoo Lee, Sungzoon Cho
PRL
2006
114views more  PRL 2006»
13 years 11 months ago
Incremental training of support vector machines using hyperspheres
In the conventional incremental training of support vector machines, candidates for support vectors tend to be deleted if the separating hyperplane rotates as the training data ar...
Shinya Katagiri, Shigeo Abe
PRL
2006
100views more  PRL 2006»
13 years 11 months ago
The utilization of a Taylor series-based transformation in fingerprint verification
Dealing with non-linear distortion in fingerprint images is a major difficulty for automated fingerprint verification systems. While this distortion can be a nuisance in minutiae ...
Peter Meenen, Ashkan Ashrafi, Reza R. Adhami
PRL
2006
96views more  PRL 2006»
13 years 11 months ago
Classifier evaluation under limited resources
Existing evaluations measures are insufficient when probabilistic classifiers are used for choosing objects to be included in a limited quota. This paper reviews performance measu...
Reuven Arbel, Lior Rokach
PRL
2006
73views more  PRL 2006»
13 years 11 months ago
An objective approach to cluster validation
Mohamed Bouguessa, Shengrui Wang, Haojun Sun
PRL
2006
79views more  PRL 2006»
13 years 11 months ago
Multi-class feature selection for texture classification
In this paper, a multi-class feature selection scheme based on recursive feature elimination (RFE) is proposed for texture classifications. The feature selection scheme is perform...
Xue-wen Chen, Xiang-Yan Zeng, Deborah van Alphen
PRL
2006
92views more  PRL 2006»
13 years 11 months ago
A Bayes-spectral-entropy-based measure of camera focus using a discrete cosine transform
In this paper we present a novel measure of camera focus based on the Bayes spectral entropy of an image spectrum. In order to estimate the degree of focus, the image is divided i...
Matej Kristan, Janez Pers, Matej Perse, Stanislav ...
PRL
2006
207views more  PRL 2006»
13 years 11 months ago
On-line trajectory clustering for anomalous events detection
In this paper we propose a trajectory clustering algorithm suited for video surveillance systems. Trajectories are clustered on-line, as the data are collected, and clusters are o...
Claudio Piciarelli, Gian Luca Foresti
PRL
2006
225views more  PRL 2006»
13 years 11 months ago
A straight line detection using principal component analysis
A straight line detection algorithm is presented. The algorithm separates row and column edges from edge image using their primitive shapes. The edges are labeled, and the princip...
Yun-Seok Lee, Han-Suh Koo, Chang-Sung Jeong