fourier images meaning in Chinese
傅立叶像
Examples
- Fluorescence power transfer function , three - dimensional point spread function ( 3d - psf ) and three - dimensional optical transfer function ( sd - otf ) for the various fluorescent wavelength of the two kinds of fluorescence confocal scanning microscopy are calculated in this paper by using fourier imaging theory . the results show that the fluorescent wavelength has influence on imaging property of confocal microscopy such as spatial cut - off frequency , resolution and 3d - otf . there is a different missing - cone in the 3 - d space of otf when the ratio of excitation wavelength to fluorescent wavelength decreases
本文在sheppard和gumin等人的理论基础上，利用fourier光学成像理论，讨论了不同荧光波长对单光子和双光子共焦显微镜成像特性的影响，导出了单光子和双光子共焦显微镜的荧光功率传输函数、三维脉冲响应函数和三维光学传递函数，得到了它们在不同激发波长与荧光波长比值时具体的表达式，并且通过数值计算，得到了它们的曲线图，结果表明：随着激发波长与荧光波长比值的增加，焦斑的横向分布和纵向分布变窄，横向分辨率和纵向分辨率提高，系统的成像效果变好，当激发波长与荧光波长的比值下降到一定程度时，可以看到不同程度的失锥现象。