• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

A Novel Multifocus Image Fusion Algorithm Based on Nonsubsampled Contourlet Transform

Vol. 7, No.3, March 31, 2013
10.3837/tiis.2013.03.008, Download Paper (Free):

Abstract

A novel multifocus image fusion algorithm based on NSCT is proposed in this paper. In order to not only attain the image focusing properties and more visual information in the fused image, but also sensitive to the human visual perception, a local multidirection variance (LEOV) fusion rule is proposed for lowpass subband coefficient. In order to introduce more visual saliency, a modified local contrast is defined. In addition, according to the feature of distribution of highpass subband coefficients, a direction vector is proposed to constrain the modified local contrast and construct the new fusion rule for highpass subband coefficients selection The NSCT is a flexible multiscale, multidirection, and shift-invariant tool for image decomposition, which can be implemented via the _trous algorithm. The proposed fusion algorithm based on NSCT not only can prevent artifacts and erroneous from introducing into the fused image, but also can eliminate 'block effect' and 'frequency aliasing' phenomenon. Experimental results show that the proposed method achieved better fusion results than wavelet-based and CT-based fusion method in contrast and clarity.


Statistics

Show / Hide Statistics

Statistics (Cumulative Counts from December 1st, 2015)
Multiple requests among the same browser session are counted as one view.
If you mouse over a chart, the values of data points will be shown.


Cite this article

[IEEE Style]
Cuiyin Liu, Peng Cheng, Shu-qing Chen, Cuiwei Wang and Fenghong Xiang, "A Novel Multifocus Image Fusion Algorithm Based on Nonsubsampled Contourlet Transform," KSII Transactions on Internet and Information Systems, vol. 7, no. 3, pp. 539-557, 2013. DOI: 10.3837/tiis.2013.03.008

[ACM Style]
Liu, C., Cheng, P., Chen, S., Wang, C., and Xiang, F. 2013. A Novel Multifocus Image Fusion Algorithm Based on Nonsubsampled Contourlet Transform. KSII Transactions on Internet and Information Systems, 7, 3, (2013), 539-557. DOI: 10.3837/tiis.2013.03.008