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Proceedings Paper

A parameter identification method of high frequency vibration model on TDI image
Author(s): Jiong Liang; Ting fa Xu; Ming zhu Shi; Liang Feng; Guo qiang Ni
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Paper Abstract

To accurately discern the parameters of high frequency vibration blur model on a single TDI image, the research analyzes the imaging function when high frequency vibration occurs in TDI mode. The method of simplifying the vibration model is offered and verified, which promises the MTF will be only related with motion angle and vibration amplitude. Three algorithms for motion direction discerning are compared with one another, which are Radon transform, autocorrelation analysis and cepstral method. The conclusion reveals that cepstral method can measure the most accurate motion angle. Four algorithms for vibration amplitude discerning are compared, which are the quadratic Radon transform, cepstral analysis, autocorrelation analysis and direct analysis on frequency spectrum. It reveals that direct analysis on Log frequency spectrum is the most accurate for vibration amplitude. The research suggests that composition of cesptral method and direct analysis on log frequency spectrum could obtain the highly accurate parameters in high frequency vibration model.

Paper Details

Date Published: 19 December 2013
PDF: 8 pages
Proc. SPIE 9045, 2013 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, 90450X (19 December 2013); doi: 10.1117/12.2033054
Show Author Affiliations
Jiong Liang, Beijing Institute of Graphic Communication (China)
Beijing Institute of Technology (China)
Ting fa Xu, Beijing Institute of Technology (China)
Ming zhu Shi, Beijing Institute of Technology (China)
Liang Feng, Beijing Institute of Technology (China)
Guo qiang Ni, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 9045:
2013 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology
Xinggang Lin; Jesse Zheng, Editor(s)

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