Assets have different shapes, colors and textures. A shape feature is the main characteristic, which distinguishes each type of asset in addition to the other features, i.e. the color and the texture. The value of features in the image-based asset information retrieval is used as the key field by comparing the similarities between the images. These similarities can be determined based on the di...

Spectral kurtosis (SK) is a statistical approach for detecting and removing radio-frequency interference (RFI) in radio astronomy data. In this article, the statistical properties of the SK estimator are investigated and all moments of its probability density function are analytically determined. These moments provide a means to determine the tail probabilities of the estimator that are essenti...

The aim of our project is to design an algorithm for counting people in public transport vehicles such as buses by processing images from surveillance cameras’ video streams. This article presents a method of detection and tracking of multiple faces in a video by using a model of first and second order local moments. The three essential steps of our system are skin color modeling, probabilistic...

Distribution functions in hard processes can be described by quark–quark correlators, nonlocal matrix elements of quark fields. Color gauge invariance requires inclusion of appropriate gauge links in these correlators. For transverse momentum dependent distribution functions, in particular important for describing T -odd effects in hard processes, we find that new link structures containing loo...

Recently, a new kind of images taken by a camera in a "real-world" environment appeared. It implies different strong degradations missing in scanner-based pictures and the presence of complex backgrounds. In order to segment text more properly as possible, a new binarization technique is proposed using color information. This information is used at proper moments in the processing not from the ...

The spin 1/2 baryons are pictured as a composite system made out of a " core " of three valence quarks (as in the simple quark model) surrounded by a " sea " (of gluon and q ¯ q pairs) which is specified by its total quantum numbers. We assume the sea is a SU (3) flavor octet with spin 0 or 1 but no color. This model, considered earlier, is used to obtain simultaneous fits for masses, magnetic ...

Spin-1/2 baryons are considered as a composite system made out of a " core " of three quarks surrounded by a " sea " (of gluons and q ¯ q-pairs) which is specified by its total quantum numbers. Specifically, we assume this sea to be a flavor octet with spin-0 or 1 but no color. We show our model can provide very goods fits to magnetic moments and semileptonic decay data using experimental error...

We describe a number of learning rules that can be used to train unsupervised parallel feature extraction systems. The learning rules are derived using gradient ascent of a quality function. We consider a number of quality functions that are rational functions of higher order moments of the extracted feature values. We show that one system learns the principle components of the correlation matr...