Welcome to Acta Armamentarii ! Today is

Acta Armamentarii ›› 2013, Vol. 34 ›› Issue (12): 1514-1520.doi: 10.3969/j.issn.1000-1093.2013.12.005

• Paper • Previous Articles     Next Articles

Image Fusion Quality Assessment Method Based on Phase Congruency and Structural Similarity

ZHANG Yu-zhen1,2,3, SUN Jia-song1,2, CHEN Qian1,2, GU Guo-hua1,2, FENG Shi-jie1,2,   

  1. (1.School of Electronic Engineering and Optoelectronic Technology,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China; 2.Jiangsu Key Laboratory of Spectral Imaging & Intelligent Sense,Nanjing 210094,Jiangsu,China; 3.Key Laboratory of Photoelectronic Imaging Technology and System,Ministry of Education of China,Beijing Institute of Technology,Beijing 100081,China)
  • Received:2013-08-15 Revised:2013-08-15 Online:2014-03-04
  • Contact: ZHANG Yu-zhen E-mail:olindazh@163.com

Abstract: Structure contour is very important to the human visual system in the quality evaluation of infrared (IR) and visible CCD fusion images. The phase congruency (PC) image, produced by the PC model, can preserve the structure contour feature of image very well, even if the image brightness and contrast have changed. Therefore, an assessment method based on PC is proposed for these considerations. Firstly, two images, the structural similarity (SSIM) images of the fused image relative to the IR and visible CCD images, are produced by the SSIM model, respectively. Then, two PC images of the IR and visible CCD images are produced by the PC model. Afterwards, the SSIM images are weighted by their corresponding PC images, considering the different visual sensitive levels of two different regions, contour region and residual region. At last, the information-entropy coefficients of the IR and visible CCD images are used as the weights to predict image quality assessment. The subjective and objective indexes of experimental images are extracted, and the nonlinear correlation coefficients and Spearman’s rank-order coefficients (SROCCs) are calculated for the first time. Finally the experimental data are statistically analyzed. The results indicate that the proposed method can present more subjective evaluation results more than the previous evaluation methods.

Key words: information processing, image fusion, structural similarity, phase congruency, image quality assessment, consistency between subjective as and objective assessments

CLC Number: