MULTI-RESOLUTION BASED SPATIALLY ADAPTIVE MULTI-ORDER TOTAL VARIATION FOR IMAGE RESTORATION

Viswanath, Sanjay and de Beco, Simon and Dahan, Maxime and Arigovindan, Muthuvel (2018) MULTI-RESOLUTION BASED SPATIALLY ADAPTIVE MULTI-ORDER TOTAL VARIATION FOR IMAGE RESTORATION. In: 15th IEEE International Symposium on Biomedical Imaging (ISBI), APR 04-07, 2018, Washington, DC, pp. 497-500.

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Abstract

We propose a novel total variation based image restoration method that combines first and second order total variation functionals in a structurally adaptive manner. Specifically, as opposed to recent practical combined order methods, which choose the relative weight between the functionals of different derivative orders as a global scalar parameter, we construct a functional that uses a spatially varying relative weight between functionals of different orders so as to adapt to the local image structure. Further, as opposed to known combined order methods which leave the relative weight as a user parameter, the proposed method automatically computes the relative weight using a novel multi-resolution based formulation. The proposed spatially adaptive combined order TV (SAMTV) performs better than the state of art total generalized variation (TGV) method in experiments.

Item Type:	Conference Proceedings
Series.:	IEEE International Symposium on Biomedical Imaging
Publisher:	IEEE
Additional Information:	15th IEEE International Symposium on Biomedical Imaging (ISBI), Washington, DC, APR 04-07, 2018
Keywords:	Total Variation; Multi-Resolution; Image Restoration; Majorization-Minimization; Spatially Adaptive Regularization; Total Generalized Variation
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	07 Feb 2019 08:58
Last Modified:	07 Feb 2019 08:58
URI:	http://eprints.iisc.ac.in/id/eprint/61670

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