Asymmetric anisotropic diffusion

Romulus Terebes (1) , Olivier Lavialle (2) , Christian Germain (2) , Monica Borda (3) , Sorin Pop (1)

1 Faculty of Electronics, Telecommunications and Information Technology
2 IMS - Laboratoire de l'intégration, du matériau au système
3 Faculty of Electronics, Telecommunications and Information Technology

We introduce a new anisotropic diffusion based approach for image filtering and enhancement. The main novelty of our method consists in considering a modulo 2π based definition of the diffusion axis along the main directions of the processed image. Such an asymmetric formulation of the filter induces better junction and corner preservation properties coupled with a good noise removal capacity.

Mots clés: Diffusion processes; Image restoration; Image orientation analysis

Domaines: Traitement des images [eess.IV]

Romulus Terebes, Olivier Lavialle, Christian Germain, Monica Borda, Sorin Pop. Asymmetric anisotropic diffusion. IEEE ICIP (international Conference on Image Processing), Nov 2009, Le Caire, Egypt. 4 p. ⟨hal-00400818⟩