East China Normal University Fang Li

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East China Normal University Fang Li Image Fusion East China Normal University Fang Li

Outline Multifocus image fusion Aerial Image Fusion Pan-Sharpening

Multifocus image fusion Reference 1: Variational Models for Fusion and Denoising of Multifocus Images, IEEE SIGNAL PROCESSING LETTERS, VOL. 15, 2008 Spatial Variational model

Variational model in wavelet domain

Reference 2: Stefan Kluckner, Thomas Pock and Horst Bischof, Exploiting Redundancy for Aerial Image Fusion using Convex Optimization,2010. Reference 3: Xue-Cheng Tai et. al, Efficient Convex Optimization Approaches to Variational Image Fusion, cam11-86. Using primal-dual algorithm

Primal-dual algorithm

P2 Primal-dual algorithm

Conjugate function

Simulated data

Real data

P3

Iteration (p=1) p=2 ALM

GPU implementation Size 217*181*181

Pan-Sharpening The technique of using the panchromatic image to enhance the resolution of the multispectral image is called sensor fusion or pan-sharpening. P+XS,IJCV,2006