Sciweavers

Share
SCALESPACE
2015
Springer

Artifact-Free Variational MPEG Decompression

3 years 6 months ago
Artifact-Free Variational MPEG Decompression
Abstract. We propose a variational method for artifact-free video decompression that is capable of processing any MPEG-2 encoded movie. The method extracts, from a given MPEG-2 file, a set of admissible image sequences and minimizes an artifact-penalizing spatio-temporal regularization functional over this set, giving an optimal decompressed image sequence. For regularization, we use the infimal convolution of spatiotemporal Total Generalized Variation functionals (ICTGV). Numerical experiments on MPEG encoded files show that our approach significantly increases image quality compared to standard decompression.
Kristian Bredies, Martin Holler
Added 17 Apr 2016
Updated 17 Apr 2016
Type Journal
Year 2015
Where SCALESPACE
Authors Kristian Bredies, Martin Holler
Comments (0)
books