The finite ridgelet transform for image representation
نویسندگان
چکیده
منابع مشابه
The finite ridgelet transform for image representation
The ridgelet transform was introduced as a sparse expansion for functions on continuous spaces that are smooth away from discontinuities along lines. We propose an orthonormal version of the ridgelet transform for discrete and finite-size images. Our construction uses the finite Radon transform (FRAT) as a building block. To overcome the periodization effect of a finite transform, we introduce ...
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A finite implementation of the ridgelet transform is presented. The transform is invertible, non-redundant and achieved via fast algorithms. Furthermore we show that this transform is orthogonal hence it allows one to use non-linear approximations for the representation of images. Numerical results on different test images are shown. Those results conform with the theory of the ridgelet transfo...
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ژورنال
عنوان ژورنال: IEEE Transactions on Image Processing
سال: 2003
ISSN: 1057-7149
DOI: 10.1109/tip.2002.806252