| 图像传输方法测量海水的点扩展函数 |
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| 引用本文： | 于亦凡,陈维真,黄海龙,刘智深.图像传输方法测量海水的点扩展函数[J].光学学报,2000,20(12):647-1651. |
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| 作者姓名： | 于亦凡 陈维真 黄海龙 刘智深 |
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| 作者单位： | 青岛海洋大学海洋遥感教育部重点实验室，青岛 266003 |
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| 基金项目： | 国家自然科学基金!( 4 96860 0 6)，高等院校博士点专项科研基金!( 970 4 2 30 3)资助课题 |
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| 摘 要： | 海水水体的点扩展函数（PSF）及光学传递函数（OTF）描述了海水中光或图像传输的性质，是研究海水光学性质及水下图像系统的基本参数。探讨了用图像传输的理论测量海水点扩展函数或光学传递数的方法，在实验室中建立了一套测量和计算系统；对不同长度的散射水体进行了测量，得到了一维和二维的海水点扩展函数曲线，测量结果与理论分析相符合。
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| 关 键 词： | 点扩展函数 光学传递函数 光散射 图像传输 海水 |
| 收稿时间： | 2000/2/25 |
Measurement of the Point Spread Function of Seawater with Method of Image Transmission |
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| Yu Yifan,CHEN Weizhen,Huang Hailong,LIU Zhishen.Measurement of the Point Spread Function of Seawater with Method of Image Transmission[J].Acta Optica Sinica,2000,20(12):647-1651. |
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| Authors: | Yu Yifan CHEN Weizhen Huang Hailong LIU Zhishen |
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| Abstract: | A laboratory facility to measure and calculate the point spread function (PSF) and the optic transfer function (OTF) of seawater is described. The PSF and OTF are important parameters for predicting light propagation and imaging system performance. An image transmission method for measuring the PSF is discussed and the 1 D and 2 D PSF curves for various scattering water path lengths are presented. The OTF are also calculated by FFT from the data of PSF. Some results are shown, which agree with the theory. |
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| Keywords: | point spread function optic transfer function light scattering image transmission |
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