Zero-watermarking is one of the solutions for image copyright protection without tampering with images, and thus it suitable medical which commonly do not allow any distortion. Moment-based zero-watermarking robust against both processing geometric attacks, but discrimination watermarks often ignored by researchers, resulting in high possibility that host images fake cannot be distinguished ver...

We propose a multi-shell sampling grid and develop corresponding transforms for the accurate reconstruction of the diffusion signal in diffusion MRI by expansion in the spherical polar Fourier (SPF) basis. The transform is exact in the radial direction and accurate, on the order of machine precision, in the angular direction. The sampling scheme uses an optimal number of samples equal to the de...

Epipolar rectification of a stereo pair is the process resampling images so that apparent motion corresponding points horizontal. This an important preliminary step in depth estimation, substituting by disparity estimation. Most methods rely on perspective transform both images, which has advantage to simulate different attitude pinhole cameras. A limitation when epipole inside image domain, it...

We construct the integral transform passing from space representation to momentum for Hydrogen atom using polar spherical coordinates. The resulting radial wave functions are explicitly given in terms of complex finite expansions Gegenbauer first and second kind, or (elementary) trigonometric functions. show their symmetry under $SO(4)$ group, equivalence with those Lombardi Oglivie.

in the present work, a modified correlation is presented for the second virial coefficients of both polar and nonpolar fluids based on the corresponding states principle. the second virial coefficients of gaseous polar and non-polar compounds were calculated and compared with experimental data and with other correlations. comparisons with the existing correlations show that the present work is ...

This paper presents a fast corner fixation algorithm for log-polar cameras. The algorithm uses the log-Hough transform to fixate on the dominant corner in the image by aligning the optical axis with the corner. The algorithm has been implemented in a real-time closed-loop control system, which exhibits stable behaviour as the tracking error minimises towards the image centre. This system demons...

In this paper we used a surfactant-stabilized lyotropic lamellar model system to study the interfacial behavior of an ion-extracting agent: N(1),N(3) dimethyl-N(1),N(3)-dibutyl-2-tetradecylmalonamide (DMDBTDMA). An analysis of small-angle X-ray scattering (SAXS) and polarized attenuated total reflectance-Fourier transform infrared (ATR-FTIR) data enabled us to describe the distribution of the m...

In this paper we present a hybrid local-global path planning scheme for the problem of operating a moving agent inside an unknown environment in a collision-free manner. The path planning algorithm is based on information gathered on-line by the available on-board sensor devices. The solution minimizes the total length of the path with respect to a metric that includes actual path length along ...