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

2. Outline
Multifocus image fusion
Aerial Image Fusion
Pan-Sharpening

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

5. Variational model in wavelet domain

6. 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

7. Primal-dual algorithm

8. P2
Primal-dual algorithm

9. Conjugate function

10. Simulated data

11. Real data

12. P3

13. Iteration (p=1)
p=2
ALM

15. GPU implementation
Size 217*181*181

16. 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