MTF Measurement Research on Satellite Remote Sensing Images Based on the Knife-Edge Method

Abstract:

In-orbit testing of Modulation Transfer Function (MTF) is an important index of monitoring in-oribit operation performance of the space optical remote sensors. How to grasp the change of remote sensor imaging system in operational process accurately concerns the use of remote sensing data reasonably and effectively. We analyse the knife-edge method for testing the principle of the MTF and the simulation algorithm, and tests the accuarcy of the algorithm. The analysis results demonstrate that the algorithm of this paper has higher precision for the calculation of MTF of in-oribit remote sensing image, and can resist noise effectively. Whats more, we focus on anlaysing the main factors of the precision of edge method influenced by edge fitting. The analysis results show that the edge data need to be interpolated non-parametrically when the edge is fitting.

• Periodical: Advanced Materials Research (Volumes 760-762)
• Pages: 1178-1182
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.760-762.1178
• Online since: September 2013
• Authors: Hai Bin Wen, Jian Guo Wen
• Keywords: Knife-Edge Method, MTF, On Orbit Test

References

[1] Ryan R, Baldridge B, Choi T, et al. IKONOS Spatial Resolution and Image Interpretability Characterization [J]. Remote Sensing of Environment, 2003, 88: 37-52.

DOI: 10.1016/j.rse.2003.07.006

[2] Helder D. In-flight characterization of spatial quality using point spread function [J]. In Post-Launch Calibration of Satellite Sensors, 2004: 67-76.

DOI: 10.1201/9780203026830-9

[3] Stephen K Park, Robert A Schowengerdt. Image sampling, reconstruction, and the effect of sample-scene phasing [J]. Applied Optics, 1982, 21: 3142-3151.

DOI: 10.1364/ao.21.003142

[4] Rauchmiller R, Schowengerdt R A Jr. Measurement of the Lands at the matic Mapper modulation transfer function using an array of point sources[J]. Optical Engineering, 1988, 27: 334-343.

DOI: 10.1117/12.7976678

[5] Dennis Helder, Taeyoung Choi, Manjunath Rangaswamy , IKONOS and Quickbird Satellite in-orbit Modulation Transfer function (MTF) Measurement using Edge, Pulse and Impulse Methods, Electrical Engineering Department South Dakota State University, (2001).

[6] Liu Qin, Chen Shiping, Ma Wenpo. Processing remote sensing image of CCD camera with smoothness constraint restoration, Chinese Space Science and Technology, 2003, 23(1): 44-45.

[7] Gu X F, Li X Y, Min X J, Yu T, Sun J J, Zeng Y, Xu H and Guo D. 2005. In flight MTF monitoring and compensation for CCD camera on CBERS-02, Science in China Series E-Engineering& Materials Science, 48(Suppl. 1): 29-43.

[8] MARD J, LEGER D, ROQUES S, et al. Modulation transfer function measurement using non specific views [J]. Proc. of SPIE, 2003, 4885: 34-45.