Multiscaling manifold-valued data via approximation subdivision schemes
Nir Sharon  1@  
1 : School of Mathematical Sciences [Tel Aviv]

The close connection between subdivision schemes and wavelets has been studied for decades. One milestone is Donoho's work from the nineties about the direct application of interpolatory subdivision operators as upscaling operators in a pyramid transform. However, it has been established only recently how to use non-interpolatory operators similarly.

In this talk, I will briefly survey this hierarchical analysis and introduce the lifting of multiscale pyramid transform for analyzing manifold-valued functions. Then, we describe this construction in detail and present its analytical properties, including stability and coefficient decay. Finally, we numerically demonstrate the results and show the application of our method for denoising and abnormalities detection.


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