Target recognition of ladar range images using even-order Zernike moments

被引：11

作者：

Liu, Zheng-Jun ^{[1
]}

Li, Qi ^{[1
]}

Xia, Zhi-Wei ^{[1
]}

Wang, Qi ^{[1
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Sci & Technol Tunable Laser, Harbin 150080, Peoples R China

来源：

APPLIED OPTICS | 2012年 / 51卷 / 31期

关键词：

OBJECT RECOGNITION; NEURAL-NETWORK; PATTERN-RECOGNITION; MODEL; COMPUTATION; INVARIANTS;

D O I：

10.1364/AO.51.007529

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ladar range images have attracted considerable attention in automatic target recognition fields. In this paper, Zernike moments (ZMs) are applied to classify the target of the range image from an arbitrary azimuth angle. However, ZMs suffer from high computational costs. To improve the performance of target recognition based on small samples, even-order ZMs with serial-parallel backpropagation neural networks (BPNNs) are applied to recognize the target of the range image. It is found that the rotation invariance and classified performance of the even-order ZMs are both better than for odd-order moments and for moments compressed by principal component analysis. The experimental results demonstrate that combining the even-order ZMs with serial-parallel BPNNs can significantly improve the recognition rate for small samples. (C) 2012 Optical Society of America

引用

页码：7529 / 7536

页数：8

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