| Paper: | IMDSP-P2.9 | ||
| Session: | Restoration | ||
| Time: | Tuesday, May 18, 13:00 - 15:00 | ||
| Presentation: | Poster | ||
| Topic: | Image and Multidimensional Signal Processing: Image and Video Coding | ||
| Title: | DEBLOCKING DCT-BASED COMPRESSED IMAGES WITH WEIGHTED TOTAL VARIATION | ||
| Authors: | François Alter; École Normale Supérieuré | ||
| Sylvain Durand; Université de Picardie | |||
| Jacques Froment; Université de Bretagne-Sud | |||
| Abstract: | Coding systems based on block DCT, such as JPEG standard, are known to produce blocking and Gibbs effects. We propose a method to remove these artifacts without smoothing images and without loosing there perceptual features. It consists in an weighted Total Variation minimization constrained by the knowledge of quantization intervals. A fast algorithm is proposed and experiments suggest better performance than state-of-the-art deblocking algorithms. | ||
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