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激光成像跟踪系统中的图像噪声抑制技术

, PP. 25-30

Keywords: 图像处理,噪声抑制,组合数值滤波器,激光散斑

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Abstract:

激光成像跟踪系统是实现空间远距离暗目标跟踪的一种极具潜力的手段,而目标在激光照射下的图像将受到激光散斑的调制作用,影响目标的识别及目标的定向精度。对激光照射下目标图像的统计特性进行了理论分析,然后提出了一种对原始图像依次实施灰度线性变换、中值滤波和Lee滤波的组合数值滤波器对图像噪声进行抑制。处理的结果表明,采用上述组合方法,图像的噪声指数可从0.67降至0.22,同时边缘保持度可达0.96,为后续的图像处理提供了必要的基础。

References

[1]  Johnson R E, Weiss P F. Laser Tracking System with Automatic Reacquisition Capability[J]. Appl. Opt. 1968, 7: 1095-1102?
[2]  Greene B. Laser Tracking of Space Debris[J]. Proceeding of 13th International Workshop on Laser Ranging, 2002,October:7-11?
[3]  Bai Y, Zhuang H, Roth Z. Experiment Study of PUMA Robot Calibration Using a Laser Tracking System[J]. Proceedings of IEEE international Workshop on Soft Computing in Industrial Applications, 2003: 139-144?
[4]  Yu Shuang, Zhao Yan-zheng. Study on rotational stabilization in a laser tracking system[J]. Journal of Shanghai Jiaotong University (Science) ,2009. 14(3): 316-320?
[5]  Lee J S. Speckle suppression and analysis for synthetic aperture radar images[J] . Optical Engineering , 1986, 25(5): 636-643?
[6]  Lee J S, Wen J H, Ainsworth T L. Improved Sigma Filter for Speckle Filtering of SAR Imagery[J]. IEEE Transactions on Geo-science and Remote Sensing, 2008, 47(1): 202-213
[7]  Ghofrani S, Ayatollahi A. Speckle suppression by adaptive nonlinear filtering[J]. Proceedings of ICSP’02, 2002, 19(4): 777-779?
[8]  Aravind G, Rigoll G. Edge-Preserving Unscented Kalman Filter for Speckle Reduction[J]. IEEE Trans –2008, 978-1-4244-2175-06/08?
[9]  Hou Jian-Hua, Liu Xiang-Ming, Xiong Cheng-Yi. Speckle reduction algorithm for synthetic aperture radar images based on Bayesian maximum a posteriori estimation in wavelet domain[J]. Optical Engineering , 2008, 47(5), 0570041-05700411?
[10]  Dewaele P, Wambacq P, Osterlinek A, et a1. Comparison of some speckle reduction techniques for SAR images[C]. Geoscience and Remote Sensing Symposium. IGRASS’90. 1990: 2417-2422 [9]Aroquiaraj I L, Thangavel K, Manavalan R. Comparative Analysis of Speckle Filtering Techniques[J]. International Journal of Recent Trends in Engineering, 2009, 2(2): 120-123?
[11]  Goodman J W. Some fundamental properties of speckle[J]. Opt.Soc.Am., 1976, 66(11): 1145-1150?
[12]  Guo Guan-Jun, Shao Yun. Statistical properties of the back-scattered signals from ground in laser radar applications[J],ACTA PHYSICA SINICA, 2002, 51(2): 228-234(in Chinese)?
[13]  Gonzalez R C, Woods R E. Digital Image Processing(2nd Edition)[M]. Beijing: Publishing House of Electronics Industry, 2006: 78-125?

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