Image Fusion Based on Fractional Fourier Domain Phase and Amplitude

被引:1
|
作者
Li, Longlong [1 ]
Zou, Qiming [1 ]
Huang, Qian [2 ]
Zhang, Yan [1 ]
Wang, Fei [1 ]
机构
[1] Shenzhen Grad Sch, Harbin Inst Technol, Shenzhen 518055, Peoples R China
[2] Wright State Univ, Dayton, OH 45435 USA
来源
SIXTH INTERNATIONAL CONFERENCE ON GRAPHIC AND IMAGE PROCESSING (ICGIP 2014) | 2015年 / 9443卷
关键词
Image fusion; fractional Fourier transforms; phase; amplitude; image reconstruction;
D O I
10.1117/12.2179513
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Applying fractional Fourier transform (FRFT) on an image, the phase and amplitude portion have different capability to reflect spectral information of the source image. Generally, the phase portion is of more importance. Taking advantage of these characters, a novel image fusion algorithm, named as FRFT-phase-amplitude, is proposed. Firstly, apply FRFT on source images, and then the amplitude and the phase information are separated. Secondly, fuse the amplitude portion in FRFT domain using the largest absolute value fusion rule. Thirdly, do inverse fractional Fourier transform (IFRFT) on phase portions to get reconstructed phase images, and fuse them in spatial domain by selecting the larger pixel value, then process FRFT on this fused phase image. Finally, combine fused phase portion with fused amplitude portion in fractional domain, and apply IFRFT on the combination to create the fused image. Experiments reveal that the FRFT-phase-amplitude algorithm can produce better fusion effects than methods based on wavelet transform and FRFT.
引用
收藏
页数:7
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