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A new images denoising method based on nonuniform partition approximation and wavelet transform is proposed. The key point of non-uniform partition approximation is that the gray values of the pixels are regarded as fitting data, which is fitted with the least squares method, and then the digital image is expressed as a piecewise polynomial. The nonuniform partition approximation can realize image...
This paper uses a new class of complete orthogonal system in L2[0, 1], which consists of piecewise polynomials (called V-system), to process shape recognition. A novel boundary based shape recognition method is proposed. First the contour of an object is regarded as a geometric graph, and the graph is expanded in a V-series, which transform the graph to the spectrum space and quantify overall feature...
When multiple moving targets are close to each other, the returned signals from these targets are overlapped in time. Therefore, by applying conventional motion compensation algorithms designed for single target, the multiple targets cannot be resolved, and individual one cannot be clearly imaged. However, each individual target may have its own velocity different from others. The translational motion...
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