This paper presents the participation of our group in the ImageCLEF 2012 Photo Annotation Task. Our approach is based on visual and textual features as we experiment with different strategies in order to extract the semantics inside an image. First, we construct a textual dictionary of tags using the most frequent words present in the user tag annotated images from the training data sets. A lin...

For the distribution characteristics in a slice of pathological cell image, the system transforms them into the characteristic vectores by quantization and clustering in HSV color model, it promotes the concerned isolated pixel color description into the color feature ralative to its neighborhood’s color histogram and color moments. By choosing appropriate neighborhood window size, it uses colo...

The transverse velocities of steadily rotating, non–axisymmetric patterns in flat galaxies may be determined by a purely kinematical method, using two dimensional maps of a tracer surface brightness and radial current density. The data–maps could be viewed as the zeroth and first velocity moments of the line–of–sight velocity distribution, which is the natural output of integral– field spectrog...

1 THE FLUID EQUATIONS 2 1.1 Microscopic Description 2 1.2 Macroscopic Description 3 1.3 Velocity Moments and the Fluid Limit 3 2 EULERIAN PERTURBATIVE SOLUTIONS 4 2.1 Linear Density Field 4 2.2 Linear Peculiar Velocity Field 6 2.3 Non-Linear Corrections 7 3 SOME BASIC APPLICATIONS 8 3.1 The PDF as a Measure of Large Scale Structures 8 3.2 Moments of the PDF 9 3.3 Edgeworth Expansion of the PDF ...

The increasing interest in processing sequences of images motivates development of techniques for sequence-based object analysis and description. Accordingly, new velocity moments have been developed to allow a statistical description of both shape and associated motion through an image sequence. Through a generic framework motion information is determined using the established centralised mome...

We study, using direct orbit integrations, the kinematic response of the outer stellar disk to the presence of a central bar, as in the Milky-Way. We find that the bar’s outer Lindblad resonance (OLR) causes significant perturbations of the velocity moments. With increasing velocity dispersion, the radius of these perturbations is shifted outwards, beyond the nominal position of the OLR, but al...

Generalised color moments combine shape and color information and put them on an equal footing. Rational expressions of such moments can be designed, that are invariant under both geometric deformations and photometric changes. These generalised color moment invariants are effective features for recognition under changing viewpoint and illumination. The paper gives a systematic overview of such...

In the Maxwell interaction model the collision rate is independent of the relative velocity of the colliding pair and, as a consequence, the collisional moments are bilinear combinations of velocity moments of the same or lower order. In general, however, the drift term of the Boltzmann equation couples moments of a given order to moments of a higher order, thus preventing the solvability of th...