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Transfer function plays an important role in volume rendering. Multi-dimension transfer function can achieve high rendering quality, but suffer from troublesome user specifications. In order to reduce the complexity of manipulations, a transfer function design method based on dimension reduction model is proposed in this paper. The idea of dimension reduction model is to integrate several data features...
In this paper, a starry image matching method based on isomorphism sub graph and LCS (Longest Common Sub-sequence) is proposed for dim and small space target detecting. A starry image mainly consists of a background with a large number of low-gray pixels and bright but small facular. The relative location of the stars can be regarded as a feature set for matching in the form of a graph. While matching...
Virtual battle environment is an important visible platform for military simulation. Based on the implementation of a specific military project, the system components were described. The key techniques of virtual battlefield environment creation applying VR were analyzed and discussed, including a fast algorithm for 3D-modeling based on complexity, the techniques of 3D-terrain generation and predigestion,...
We introduce a novel fractal board game by applying the concept of subdivision of fractals to an nxn-grid game board. Black and White place a piece by turns to compete the cell territories in the grid. As all the four vertices of a cell territory are occupied, both players score based on the number of vertices occupied by their respective game pieces on all relevant cells (sub-boards). While playing,...
This paper proposes an efficient approach to find clusters of spatially related scene images collected from the website. Our method firstly builds a guide table, in which the ranked results are given according to the relevance scores of image pairs obtained by the image retrieval methods. Then the image clusters are generated by repeatedly choosing a seed image and performing query expansion directed...
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