【摘 要】
：
IHS (Intensity, Hue and Saturation) transform is one of the most commonly used fusion algorithm. But the matching error causes spectral distortion and degradati
【机 构】
：
Institute of Aerospace Science and Technology,College of Medical Instrument and Management College
论文部分内容阅读
IHS (Intensity, Hue and Saturation) transform is one of the most commonly used fusion algorithm. But the matching error causes spectral distortion and degradation in processing of image fusion with IHS method. A study on IHS fusion indicates that the color distortion can't be avoided. Meanwhile, the statistical property of wavelet coefficient with wavelet decomposition reflects those significant features, such as edges, lines and regions. So, a united optimal fusion method, which uses the statistical property and IHS transform on pixel and feature levels, is proposed. That is, the high frequency of intensity component I is fused on feature level with multi-resolution wavelet in IHS space. And the low frequency of intensity component I is fused on pixel level with optimal weight coefficients. Spectral information and spatial resolution are two performance indexes of optimal weight coefficients. Experiment results with QuickBird data of Shanghai show that it is a practical and effective method.
其他文献
The phase-matching for nonlinear optical crystal,the nonlinear phase matching angle, effective nonlinear coefficient, walk-off angles, permitted angle, and perm
Polycrystal of GdPO4:RE3+(RE=Tb, Tm) phosphors were prepared by solid- state method. Vacuum ultraviolet excitation and emission spectrum and the energy transfer
In an effort to assess the impact of the individual component of meteorological observations (ground-based GPS precipitable water vapor, automatic and conventio
In this paper, all Lie bialgebra structures on the Lie algebras of generalized Witt type are considered. It is proved that, for any Lie algebra W of generalized
The stability of GCN4 leucine zipper and its four mutants in guanidine hydrochloride was detected to verify the contributions of different a position amino acid
The pain experience includes a sensory-discriminative and an emotional-affective components. The affective dimension refers to the unpleasantness or aversion of
采用Boltzmann-Langevin方程研究了能量为35MeV／u的14Be,8He,6He,11Li,17B,11Be,19C与 12C靶的反应,计算了产生中子集团的截面,发现14Be与12C靶反应产生4n的截面与实验值符合
A new kind of inertial piezoelectric actuator for a micro in-pipe robot is proposed and studied. The actuator is composed of a body, corresponding to a mass rod
PAL satellite dataset which have long temporal span is used in the study. Relationship between cold cloud reflectivity and aerosol concentration in Beijing is a
The nonlinear diffusion filtering in image processing bases on the heat diffusion equations. Its key is the control of diffusion amount. In the previous models,