Multi-focus image fusion using Laplacian Pyramid technique based on Alpha-Stable filter

Ias Sri I. S. Wahyuni (1) , Rachid Sabre (1)

1 BGS - Biogéosciences [UMR 6282]

Multifocus image fusion is the process of combining several images from the same scene with different focused object into an image with better focus across all area. The blurred part of multifocus images is a low-pass filtering process and Gaussian filter is often used in this process. Mutlifocus image can be fused using Laplacian Pyramid (LP). LP is computed using two basic operation: reduce and expand that involve low-pas filter. The filter used in LP is Gaussian. In this paper, we propose a multifocus image fusion using LP based on a class of Alpha Stable filters. We apply this method to two cases multifocus imges: (i) multifocus images where the blurred part is generated using Gaussian filter and (ii) multifocus images with blurred part is from Alpha Stable filter and non-Gaussian. And the proposed method give the better results on both cases.

Mots clés: Laplacian Pyramid; Gaussian Filter; Alpha Stable Filter; Multi focus image fusion

Domaines: Mathématiques [math]; Statistiques [math.ST]; Sciences de l'ingénieur [physics]; Traitement du signal et de l'image [eess.SP]; Statistiques [stat]

Ias Sri I. S. Wahyuni, Rachid Sabre. Multi-focus image fusion using Laplacian Pyramid technique based on Alpha-Stable filter. Computational Research Progress in Applied Science & Engineering , 2019, 5 (2), pp.58-62. ⟨hal-01939310⟩