Conference paper

Šroubek F., Kamenický J., Milanfar P.

18th IEEE International Conference on Image Processing

IEEE

USA

2011

978-1-4577-1302-6

Ing. Filip Šroubek, Ph.D. (ÚTIA - Oddělení zpracování obrazové informace)

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.