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The traditional geodesic active model with edge(C-V Model) can deal with topological change automatically. But C-V Model is sensitive to noise and inaccurate positioning of the edges in an image. This paper proposes a C-V model based on an improved Gaussian Laplace operator (LOG). The improved Gaussian Laplace operator can enhance the accuracy of the edge(More)
In ultrasound imaging, it is usually needed to zoom in the B-mode image with high resolution. Therefore, a novel ultrasound image super-resolution zooming algorithm based on sparse representation was introduced in this paper. Sparse representation can achieve super-resolution reconstruction as long as the signal is sparse in certain dictionary. Simulation(More)
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