Dixin Guo

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In traditional compressed sensing MRI methods, single sparsifying transform limits the reconstruction quality because it cannot sparsely represent all types of image features. Based on the principle of basis pursuit, a method that combines sparsifying transforms to improve the sparsity of images is proposed. Simulation results demonstrate that the proposed(More)
In some cases in order to avoid interference during 3D laser cutting of thin metal laser head could not be kept vertical to the surface of a work piece. In such situations the cutting quality depends on not only "typical" cutting parameters but also on the slant angle of the laser head. Traditionally, many tests had to be done in order to obtain best(More)
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