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The extraction of concentric rings from x-ray coherent scatter images is the key step to calculate the energy distribution curve of x-ray coherent scatter images. In this paper, the image was transformed successively into a binary image by using adaptive threshold algorithm and Mathematical Morphology methods. The effective region was extracted from the binary image in the orthogonal energy projection...
In the paper, least squares support vector machine trained by chaos particle swarm optimization (CPSO-LSSVM) is applied in the classification. Chaos particle swarm optimization algorithm is introduced to select the suitable training parameters of least squares support vector machine. That is because chaos particle swarm optimization algorithm can avoid being trapped in local optimum and gaining the...
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