J4 ›› 2016, Vol. 33 ›› Issue (1): 29-34.

• Image and Information Proc. • Previous Articles     Next Articles

Image fusion algorithm based on with patch-based directional wavelets

Gu Si-si ,Song Mei   

  1. Department of Computer and Communication Engineering, Hunan University Of Science And Engineering,  Yongzhong 425199, China
  • Received:2015-02-12 Revised:2015-04-14 Published:2016-01-28 Online:2016-01-06

Abstract:

In order to solve defect of the traditional wavelet transform, a novel image fusion algorithm based on patch-based directional wavelet is proposed in this paper. Firstly, the image is divided into many patches, and the directional wavelet is obtained by training each patch, and then the sparse coefficients of input images are acquired by sparsely represented using the directional wavelet, finally, the fused image is reconstruction by transforming the coefficients reversely, and the simulation experiment is use to test the performance of the algorithm. The experimental results show that the proposed algorithm makes the image fusion transition effect is more natural compared with the traditional algorithm such as DTC,FFT and DWT.Because it’s image fusion quality evaluation indexes are better in the information entropy and the average gradient. At the same time,the image fusion is faster and it can meet the demand of real-time image processing system.

Key words: image fusion; parse represent; geometric direction; patch-based directional wavelet

CLC Number: