一种利用改进径向特征的星图识别方法
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摘要
为进一步提高恒星识别效率和准确性,本文结合环向特征对径向特征进行改进,提出了一种新的径向特征星图识别方法,按环向象限对星图数据进行处理,建立径向特征数据库;对待匹配星图中的观测星与特征星库中的参考星按环向象限顺序进行径向特征匹配,星库中与待识别星验证匹配计数值最大的恒星即为最终识别结果。实验数据分析表明,该方法噪声条件下的识别准确率高于传统栅格识别方法,且仅需通过部分象限的匹配即可完成识别过程,单颗恒星平均识别效率提高约30%。
In order to improve the star map identification efficiency and insure the identification veracity, the radial feature is ameliorated by cyclic feature, and a new star map identification method based on the ameliorative radial feature matching is proposed. The star map data are processed according to quadrant order to establish the database of new radial feature. The radial feature matching between the observation stars in the matching star map and the reference star in the feature database is carried out in the order of circumferential quadrant. The star with the largest count in the star database is the final identification result. Experimental data analysis indicates that the identification accuracy of the proposed method is higher than that of traditional raster identification method under noise condition. This method can complete the recognition process through partial quadrant matching. The single star recognition efficiency improves about 30% compared with original radial feature recognition method.
In order to improve the star map identification efficiency and insure the identification veracity, the radial feature is ameliorated by cyclic feature, and a new star map identification method based on the ameliorative radial feature matching is proposed. The star map data are processed according to quadrant order to establish the database of new radial feature. The radial feature matching between the observation stars in the matching star map and the reference star in the feature database is carried out in the order of circumferential quadrant. The star with the largest count in the star database is the final identification result. Experimental data analysis indicates that the identification accuracy of the proposed method is higher than that of traditional raster identification method under noise condition. This method can complete the recognition process through partial quadrant matching. The single star recognition efficiency improves about 30% compared with original radial feature recognition method.
引文
[1]张广军.星图识别[M].北京:国防工业出版社,2011.Zhang Guangjun.Star Identification[M].Beijing:National Defence Industry Press,2011.
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[5]张同双,郭敬明,柏杨,等.基于最大内角的三角形星图识别算法[J].光学精密工程,2017,25(1):208-216.Zhang Tongshuang,Guo Jingming,Yang Bai,et al.Star Identification Algorithm based on The Maximum Interior Angle in Triangle[J].Optics and Precision Engineering,2017,25(1):208-216.
[6]张磊,周宇,林荣峰,等.一种快速三角形星图识别算法[J].应用光学,2018,39(1):71-75.Zhang Lei,Zhou Yu,Lin Rongfeng,et al.Fast Triangle Star Pattern Recognition Algorithm[J].Journal of Applied Optics,2018,39(1):71-75.
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[9]踪华,汪渤,周志强,等.一种基于模式匹配的自主星图识别算法[J].北京理工大学学报,2015,35(10):1032-1037.Zong Hua,Wang Bo,Zhou Zhiqiang,et al.An Autonomous Star Identification Algorithm Based on Patterns Matching[J].Transactions of Beijing Institute of Technology,2015,35(10):1032-1037.
[10]钱华明,郎希开,李猛.一种改进的栅格星图识别算法[J].传感器与微系统,2017,36(6):150-153.Qian Huaming,Lang Xikai,Li Meng.A Modified Grid Algorithm for Star Map Identification[J].Transducer and Microsystem Technologies,2017,36(6):150-153.
[11]魏新国,张广军,江洁.利用径向和环向分布特征的星图识别方法[J].光电工程,2004,31(8):4-7.Wei Xinguo,Zhang Guangjun,Jiang Jie.A Star Map Identification Algorithm Using Radial and Cyclic Features[J].Opto-electronic Engineering,2004,31(8):4-7.
[12]胡坤,陈嘉鸿,谢元平.一种基于旋转不变特征的星图识别算法[J].光电工程,2015,42(6):20-26.Hu Kun,Chen Jiahong,Xie Yuanping.A Novel Star Pattern Identification Algorithm Based on Rotationinvariant[J].Opto-electronic Engineering,2015,42(6):20-26.
[13]朱海龙,梁斌,张涛.基于星点有序集的全天球自主星图识别算法[J].光学精密工程,2017,25(6):1577-1586.Zhu Hailong,Liang Bin,Zhang Tao.All-sky Automation Star Identification Algorithm based on Ordered Star points Set[J].Optics and Precision Engineering,2017,25(6):1577-1586.
[2]孟靖.大地天文测量星图定位与识别算法的研究[D].西安:西安电子科技大学,2010.Meng Jing.The Algorithm Research of Star Pattern Location and Recognition in Astronomical Geodesy[D].Xi’an:Xidian University,2010.
[3]时圣革,雷肖剑,于长海.星图识别三角形算法综述[J].光电技术应用,2014,29(5):1-6.Shi Shengge,Lei Xiaojian,Yu Changhai.Triangle Algorithm Overview of Star Pattern Recognition[J].Electro-Optic Technology Application,2014,29(5):1-6.
[4]陆敬辉,王宏力,孙渊,等.三角形内切圆的星图识别算法[J].红外与激光工程,2011,40(4):752-756.Lu Jinghui,Wang Hongli,Sun yuan,et al.Star Pattern Identification Algorithm by Triangle Incircle[J].Infrared and Laser Engineering,2011,40(4):752-756.
[5]张同双,郭敬明,柏杨,等.基于最大内角的三角形星图识别算法[J].光学精密工程,2017,25(1):208-216.Zhang Tongshuang,Guo Jingming,Yang Bai,et al.Star Identification Algorithm based on The Maximum Interior Angle in Triangle[J].Optics and Precision Engineering,2017,25(1):208-216.
[6]张磊,周宇,林荣峰,等.一种快速三角形星图识别算法[J].应用光学,2018,39(1):71-75.Zhang Lei,Zhou Yu,Lin Rongfeng,et al.Fast Triangle Star Pattern Recognition Algorithm[J].Journal of Applied Optics,2018,39(1):71-75.
[7]Padgett C,Kreutz-Delgado K.A Grid Algorithm for Autonomous Star Identification[J].IEEE Transactions on Aerospace and Electronic Systems(S0018-9251),1997,33(1):202-213.
[8]Clouse D,Padgett C W.Small Field-of-view Star Identification Using Bayesian Decision Theory[J].IEEETransactions on Aerospace and Electronic Systems(S0018-9251),2000,36(3):773-783.
[9]踪华,汪渤,周志强,等.一种基于模式匹配的自主星图识别算法[J].北京理工大学学报,2015,35(10):1032-1037.Zong Hua,Wang Bo,Zhou Zhiqiang,et al.An Autonomous Star Identification Algorithm Based on Patterns Matching[J].Transactions of Beijing Institute of Technology,2015,35(10):1032-1037.
[10]钱华明,郎希开,李猛.一种改进的栅格星图识别算法[J].传感器与微系统,2017,36(6):150-153.Qian Huaming,Lang Xikai,Li Meng.A Modified Grid Algorithm for Star Map Identification[J].Transducer and Microsystem Technologies,2017,36(6):150-153.
[11]魏新国,张广军,江洁.利用径向和环向分布特征的星图识别方法[J].光电工程,2004,31(8):4-7.Wei Xinguo,Zhang Guangjun,Jiang Jie.A Star Map Identification Algorithm Using Radial and Cyclic Features[J].Opto-electronic Engineering,2004,31(8):4-7.
[12]胡坤,陈嘉鸿,谢元平.一种基于旋转不变特征的星图识别算法[J].光电工程,2015,42(6):20-26.Hu Kun,Chen Jiahong,Xie Yuanping.A Novel Star Pattern Identification Algorithm Based on Rotationinvariant[J].Opto-electronic Engineering,2015,42(6):20-26.
[13]朱海龙,梁斌,张涛.基于星点有序集的全天球自主星图识别算法[J].光学精密工程,2017,25(6):1577-1586.Zhu Hailong,Liang Bin,Zhang Tao.All-sky Automation Star Identification Algorithm based on Ordered Star points Set[J].Optics and Precision Engineering,2017,25(6):1577-1586.