On-orbit detection for modulation transfer function of hyperspectral remote sensing system

ZHAO Hui-jie; QIN Bao-long; JIA Guo-rui

doi:10.3788/OPE.20111906.1235

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On-orbit detection for modulation transfer function of hyperspectral remote sensing system

Article | 更新时间：2020-08-12

- On-orbit detection for modulation transfer function of hyperspectral remote sensing system
- Optics and Precision Engineering Vol. 19, Issue 6, Pages: 1235-1243(2011)
- 作者机构：
  
  北京航空航天大学仪器科学与光电工程学院精密光机电一体化技术教育部重点实验室北京,100191
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111906.1235
  CLC： TP751.1
- Received：22 November 2010，
  
  Revised：15 January 2011，
  
  Published Online：25 June 2011，
  
  Published：25 June 2011
- 稿件说明：
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赵慧洁, 秦宝龙, 贾国瑞. 高光谱遥感系统调制传递函数的在轨测试[J]. 光学精密工程, 2011,19(6): 1235-1243

ZHAO Hui-jie, QIN Bao-long, JIA Guo-rui. On-orbit detection for modulation transfer function of hyperspectral remote sensing system[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1235-1243
赵慧洁, 秦宝龙, 贾国瑞. 高光谱遥感系统调制传递函数的在轨测试[J]. 光学精密工程, 2011,19(6): 1235-1243 DOI： 10.3788/OPE.20111906.1235.

ZHAO Hui-jie, QIN Bao-long, JIA Guo-rui. On-orbit detection for modulation transfer function of hyperspectral remote sensing system[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1235-1243 DOI： 10.3788/OPE.20111906.1235.

摘要

为了实现高光谱遥感系统调制传递函数(MTF)的在轨测试

以色散推扫型高光谱遥感系统为例分析了系统的像质退化因素并研究了MTF检测方法和流程。首先

分析了色散型高光谱遥感系统MTF三维可分性原理。然后

针对高光谱遥感图像信噪比一般较低的特点

提出了一种抗噪声的MTF检测方法;又根据该图像波段众多的特点

提出了高光谱图像刀刃法MTF测试区域的选择标准。最后

以PHI遥感图像为例对所提出的方法进行了检验。用本文提出的方法对PHI图像进行MTF提取

利用提取出的MTF对原退化图像进行了恢复。结果显示

各波段图像平均梯度提高了67.1%

细节信号能量提高了65.2%

结果证明了MTF检测方法的有效性。

Abstract

In order to realize the measurement for Modulation Transfer Function(MTF) of an on-orbit hyperspectral remote sensing system

factors of image quality degradation of the system were analyzed and the detection method for MTF was discussed by taking the dispersive hyperspectral remote sensing system for an example. Firstly

the three-dimensional separability of the MTF of the dispersive hyperspectral remote sensing system was illustrated.Then

an anti-noise MTF detecting technique was proposed concerning the charateristic of the low signal-to-noise ratio of the hyperspectral remote sensing system. A criterion of selecting MTF detection region was also proposed based on the large quantity of the bands in hyperspectral systems. Finally

the proposed methods were demonstrated by using the PHI remote sensing images and the PHI degraded images were restored with the detected MTF. Experimental results indicate that the average gradient has been improved by 67.1% and the detail-signal energy improved by 65.2%

which proves the effectiveness of the proposed method.

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Keywords

references

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Related Institution

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Key Laboratory of Optoelectronic Technique System of the Ministry of Education, Chongqing University

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