The proposed method for watermark insertion in 3D polygon mesh is based on its geometrical properties. In this method selected vertices (geometrical attribute) are shifted from its original position. The changes in position of vertices w.r.t. original position is considered as watermark. The selection of vertices for shifting from their original position is dependent on the number normalization...

To detect image copy-paste tampering, an improved blind identification was proposed in this study. Firstly, according to gray-level and gray-structure, every couple of doubtful blocks can be located. Secondly, for each located couple of doubtful blocks, use logarithm polar coordinate transformation to translate the rotation and scaling in Cartesian coordinate system into translation in logarith...

While you have probably used tensors of rank 1, i.e vectors, in special relativity, relativity is most efficiently expressed in terms of tensor algebra. General relativity, however, requires tensor algebra in a general curvilinear coordinate system. Before discussing special relativity, it will be useful to introduce some of the mathematics of differential forms in a general curvilinear set of ...

A modified lattice Boltzmann model based on the two-dimensional, nine-velocity lattice-Bhatnagar-Gross-Krook fluid is presented for axisymmetric flows. A spatially and temporally varying source term is incorporated into the evolution equation for the momentum distribution function on a two-dimensional Cartesian lattice. The precise form of the source term is derived through a Chapman-Enskog ana...

A primary objective of the eMouseAtlas Project is to enable 3D spatial mapping of whole embryo gene expression data to capture complex 3D patterns for indexing, visualization, cross-comparison and analysis. For this we have developed a spatio-temporal framework based on 3D models of embryos at different stages of development coupled with an anatomical ontology. Here we introduce a method of def...

Paul Y. Oh and Peter K. Allen Dept. of Computer Science, Columbia University, New York, NY 10027 Abstract Image-based servoing systems are often used to track moving targets and their underlying control architecture is a regulation of the image. This regulation is a function of rigid camera-to-target geometric constraints. Satisfying such constraints requires that the robot motors have su cient...

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The paper is devoted to problems related algebraic decompositions and coordinate representations of tensors with constant components, hemitropic pseudotensors. Such objects tensor algebra are interesting from the micropolar continuum mechanics viewpoint. Algebraic properties pseudotensors components discussed. base examples usable in given. An algorithm for proposed by prof. G.B. Gurevich highl...