Sparse Data Representation on the Sphere using the Easy Path Wavelet Transform
نویسندگان
چکیده
In this paper we consider the Easy Path Wavelet Transform (EPWT) on spherical triangulations. The EPWT has been introduced in [7] in order to obtain sparse image representations. It is a locally adaptive transform that works along pathways through the array of function values and exploits the local correlations of the data in a simple appropriate manner. In our approach the usual one-dimensional discrete wavelet transform (DWT), orthogonal or biorthogonal, can be applied.
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Easy Path Wavelet Transform on Triangulations of the Sphere
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