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1. 电子工程学院 安徽省红外与低温等离子体重点实验室,安徽 合肥,230037
2. 武警指挥学院,天津 300350
收稿日期:2008-07-25,
修回日期:2008-09-15,
网络出版日期:2009-07-25,
纸质出版日期:2009-07-25
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马超杰, 杨华, 李晓霞, 吴丹, 黄超超. 复杂场景下应用成像Ladar的自动目标识别[J]. 光学精密工程, 2009,17(7): 1714-1721
MA Chao-jie, YANG Hua, LI Xiao-xia, WU Dan, HUANG Chao-chao. Implementation of automatic target recognition by imaging Ladar in complex scenes[J]. Editorial Office of Optics and Precision Engineering, 2009,17(7): 1714-1721
马超杰, 杨华, 李晓霞, 吴丹, 黄超超. 复杂场景下应用成像Ladar的自动目标识别[J]. 光学精密工程, 2009,17(7): 1714-1721 DOI:
MA Chao-jie, YANG Hua, LI Xiao-xia, WU Dan, HUANG Chao-chao. Implementation of automatic target recognition by imaging Ladar in complex scenes[J]. Editorial Office of Optics and Precision Engineering, 2009,17(7): 1714-1721 DOI:
针对目标部分被树木遮挡时造成的识别困难
提出了基于成像激光雷达(Ladar)的自动目标识别算法。介绍了采用的数据分类、数据拼接、目标姿态调整和基于高度直方图的目标识别等方法的操作步骤。应用图像处理技术对场景数据进行分类
实现地面、目标和树木的分离;利用图像帧之间内在的相关性
采用"由粗到精"的方法求出数据变换矩阵并进行数据拼接;根据目标位置的法线方向进行目标姿态调整得到目标高度直方图。最后
将采集的目标高度直方图同存储的模型高度直方图进行匹配
识别出目标类型。实验结果表明:目标提取部分占目标总面积的90%以上
对目标的识别率高于99%
基本满足自动目标识别算法的稳定可靠、识别率高、抗干扰能力强等要求。
A novel Automatic Target Recognition(ATR) algorithm based on imaging Laser Radar(Ladar) is proposed to solve the target recognition difficulty caused by a tree sheltering
and the algorithms such as data classification
data mosaic
target pose adjustment and target recognition based on a height histogram are studied. The scene data are classified into several parts (ground
targets and trees) by using an image processing technique
and the translation matrixes among different views are calculated from coarse to fine according to their inherent attributions. Then
the data from different views are integrated together. According to its normal directions
each target pose is adjusted to the top view
and its height histogram can be calculated. Finally
the target is recognized by matching the target height histogram with the saved model height histograms. Experimental results indicate that the extracted target part is more than 90% of the whole target area and the recognition ratio is more than 99%
which satisfies the ATR requirements in stabilization
higher recognition ratios and strong anti-jamming.
林玉池,崔彦平,黄银国. 复杂背景下边缘提取与目标识别方法研究[J]. 光学 精密工程, 2006,14(3):509-511. LIN Y CH, CUI Y P, HUANG Y G. Study on edge detection and target recognition in complex background [J]. Opt. Precision Eng., 2006,14(3):509-511.(in Chinese)[2] 杨昕梅,吴钦章,周进. 仿射不变的运动目标识别方法[J]. 光学 精密工程, 2007,15(7):1112-1114. YANG X M, WU Q ZH, ZHOU J. Method of motion object recognition based on affine invariant [J]. Opt. Precision Eng., 2007,15(7):1112-1114.(in Chinese)[3] 杨照华,祁振强,房建成. 空中目标的免疫识别算法[J]. 光学 精密工程, 2006,14(5):922-924. YANG ZH H, QI ZH Q, FANG J CH. Immune recognition algorithm and its application to air target detection and recognition [J]. Opt. Precision Eng., 2006,14(5):922-924. (in Chinese)[4] JAMES A R. Aided and automatic target recognition based upon sensory inputs from image forming systems[J]. IEEE Trans. on Pattern Analysis and Machine Intelligence, 1997,19(9):1004-1019.[5] MARIUS A A, BRIAN F A. Three-dimensional imaging laser radars with geiger-mode avalanche photodiode arrays[J]. Lincoln Laboratory Journal, 2002,13(2):351-371.[6] ARUN K S, HUANG T S, BLOSTEIN S D. Least-squares fitting of two 3-D point sets [J].IEEE Transactions on Pattern Analysis and Machine Intelligence, 1987,9(5):698-700.[7] HORN B K P. Closed-form solution of absolute orientation using unit quaternions [J].J. Opt. Soc. Am., 1987, A(4):629-642.[8] RAMON L F. Target detection in ladar data using robust statistics[J]. SPIE,2005,5988, 59880J:1-11.[9] 马超杰,孙晓泉,李晓霞. 基于激光成像雷达制导系统的仿真设计[J]. 红外激光工程, 2005,34(6):655-659. MA CH J, SUN X Q, LI X X. Simulation designing of imaging laser radar guidance system [J]. Infrared and Laser Engineering, 2005,34(6): 655-659.(in Chinese)
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