Search
Now showing items 1-10 of 11
Framework for online superimposed event detection by sequential Monte Carlo methods
(IEEE, 2008-03-04)
In this paper, we consider online seperation and detection of superimposed events by applying particle filtering. We concentrate on a model where a background process, represented by a 1D-signal, is superimposed by an ...
Flame detection in video using hidden Markov models
(IEEE, 2005)
This paper proposes a novel method to detect flames in video by processing the data generated by an ordinary camera monitoring a scene. In addition to ordinary motion and color clues, flame flicker process is also detected ...
Eye tracking using markov models
(IEEE, 2004)
We propose an eye detection and tracking method based on color and geometrical features of the human face using a monocular camera. In this method a decision is made on whether the eyes are closed or not and, using a Markov ...
Identification of insect damaged wheat kernels using transmittance images
(IEEE, 2004)
We used transmittance images and different learning algorithms to classify insect damaged and un-damaged wheat kernels. Using the histogram of the pixels of the wheat images as the feature, and the linear model as the ...
Subband analysis for robust speech recognition in the presence of car noise
(IEEE, 1995-05)
In this paper, a new set of speech feature representations for robust speech recognition in the presence of car noise are proposed. These parameters are based on subband analysis of the speech signal. Line Spectral Frequency ...
Robust least mean mixed norm adaptive filtering for α-stable random processes
(IEEE, 1997)
Based on the concept of Fractional Lower Order Statistics (FLOS), we present the Robust Least Mean Mixed Norm (RLMMN) adaptive algorithm for applications in impulsive environments modeled by α-stable distributions. A ...
Interframe differential vector coding of line spectrum frequencies
(IEEE, 1993-04)
Line Spectrum Frequencies (LSF's) uniquely represent the Linear Predictive Coding (LPC) filter of a speech frame. In many vocoders LSF's are used to encode the LPC parameters. In this paper, an interframe differential ...
Adaptive filtering approaches for non-Gaussian stable processes
(IEEE, 1995-05)
A large class of physical phenomenon observed in practice exhibit non-Gaussian behavior. In this paper, α-stable distributions, which have heavier tails than Gaussian distribution, are considered to model non-Gaussian ...
Superimposed event detection by sequential Monte Carlo methods
(IEEE, 2007)
In this paper, we consider the detection of rare events by applying particle filtering. We model the rare event as an AR signal superposed on a background signal. The activation and deactivation times of the AR-signal are ...
Online detection of fire in video
(IEEE, 2007)
This paper describes an online learning based method to detect flames in video by processing the data generated by an ordinary camera monitoring a scene. Our fire detection method consists of weak classifiers based on ...