Conference Paper (international conference)
serial: 18th IEEE International Conference on Image Processing
action: 18th IEEE International Conference on Image Processing, (Brusel, BE, 11.09.2011-14.09.2011)
project(s): 1M0572, GA MŠk, VG20102013064, GA MV, GA102/08/1593, GA ČR
keywords: superresolution, half-quadratic algorithm, FFT
We propose a fast algorithm solving the inverse problem of resolution enhancement (superresolution) with edge-preserving regularization. An additive and multiplicative half-quadratic linearization scheme are compared and we show that the additive form is superior as all operations can be implemented in the frequency domain using the FFT.