Title :
Wavelet-based PAN and Multispectral Image Fusion
Author :
Ma, Heng ; Jia, Chuanying ; Liu, Shuang
Author_Institution :
Inst. of Nautical Sci. & Technol., Dalian Maritime Univ.
Abstract :
A new algorithm is developed to fuse a high-resolution panchromatic (PAN) image and a low-resolution multispectral (MS) image based on wavelet transform. Firstly, this paper clarifies the concepts of and relationship between image fusion rule and operator based on wavelet transform; secondly, we propose a new strategy of calculating spatial frequency in accordance with wavelet decomposition characteristic. We adopt activity level comparison based on the spatial frequency to fuse the detail coefficient and weighted average method to fuse approximate image. Finally, this paper compares the fused results based on various wavelets, and presents objective and quantitative evaluation and analysis for the fused images
Keywords :
image resolution; mathematical operators; sensor fusion; spectral analysis; wavelet transforms; activity level comparison; detail coefficient; fusion operator; high-resolution panchromatic image; low-resolution multispectral image; multispectral image fusion; spatial frequency; wavelet decomposition; wavelet transform; weighted average method; Filters; Frequency; Fuses; Image decomposition; Image fusion; Image resolution; Multispectral imaging; Spatial resolution; Wavelet analysis; Wavelet transforms; Fusion operator; Fusion rule; Image fusion; Spatial frequency; Wavelet transform;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1713867
