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3 November 2005 Comparison of Laplace pyramid and a trous wavelet transformation techniques for fusion of Ikonos images
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Proceedings Volume 6044, MIPPR 2005: Image Analysis Techniques; 60442A (2005)
Event: MIPPR 2005 SAR and Multispectral Image Processing, 2005, Wuhan, China
Image fusion is a technique of obtaining high spatial resolution multi-spectral images from low spatial resolution multi-spectral and high spatial resolution panchromatic images. Various techniques exist to perform such fusion. These techniques, however, do not seem to preserve the spectral information content of original multi-spectral image in the fused image. Hence, in this study a recent and efficient technique of fusion based on the Laplace pyramid was attempted and its efficiency was compared with that of the a trous wavelet transformation techniques. Accordingly, a lower resolution multi-spectral image of Ikonos and its high-resolution panchromatic image were fused using the Laplace pyramid and the a trous wavelet transformation fusion technique. The outputs were evaluated using visual comparison, statistical entropy, average gradient and correlation coefficient. Compared with a trous wavelet transformation techniques, the Laplace pyramid technique proved to be a better option since it preserved most of the spectral information content and improved spatial information.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yueyan Liu, Yonghong Jia, Cui Zou, and Zhongwu Wang "Comparison of Laplace pyramid and a trous wavelet transformation techniques for fusion of Ikonos images", Proc. SPIE 6044, MIPPR 2005: Image Analysis Techniques, 60442A (3 November 2005);


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