基于光照模糊相似融合不变矩的航天器目标识别

doi:10.7527/S1000-6893.2013.0403

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基于光照模糊相似融合不变矩的航天器目标识别

徐贵力, 徐静, 王彪, 田裕鹏, 郭瑞鹏, 吕温

南京航空航天大学自动化学院, 江苏南京 210016

收稿日期:2013-07-12 修回日期:2013-09-28 出版日期:2014-03-25 发布日期:2013-10-10
通讯作者: 徐贵力，Tel.：025-84892284 E-mail：guilixu@nuaa.edu.cn E-mail:guilixu@nuaa.edu.cn
作者简介:徐贵力男，博士，教授，博士生导师。主要研究方向：光电检测，计算机视觉与模式识别，计算机测控。Tel：025-84892284 E-mail：guilixu@nuaa.edu.cn；徐静女，硕士研究生。主要研究方向：计算机视觉和数字图像处理。Tel：025-84892284 E-mail：lenka107@163.com
基金资助:
国家自然科学基金（60974105，61104188）；航空科学基金（20100152003）

CIBA Moment Invariants and Their Use in Spacecraft Recognition Algorithm

XU Guili, XU Jing, WANG Biao, TIAN Yupeng, GUO Ruipeng, LV Wen

College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received:2013-07-12 Revised:2013-09-28 Online:2014-03-25 Published:2013-10-10
Supported by:
National Natural Science Foundation of China (60974105,61104188); Aeronautical Science Foundation of China (20100152003)

摘要/Abstract

摘要：

针对航天器目标识别中现有的光照变化和图像模糊条件下几何仿射不变矩识别不稳健问题，根据灰度光照模型，结合图像模糊和不变矩的基本理论，提出了一种光照模糊不变量，与几何仿射不变矩进行融合，构建出一种新的光照模糊相似融合（CIBA）不变矩，并从理论上证明了光照、模糊和相似变换（平移、缩放和旋转）不变性。对3种不同的航天器目标的识别实验表明，光照模糊相似融合不变矩在最小距离分类器中的识别准确率达到了86.37%，比几何仿射不变矩提高了94.00%，比具有光照不变性的几何仿射不变矩提高了24.54%，有效地解决了对不同位姿、不同光照模糊条件下的航天器目标识别问题，提高了基于矩的目标识别鲁棒性。

关键词: 光照不变, 模糊不变, 仿射变换, 不变矩, 目标识别, 图像识别

Abstract:

In order to solve the non-robustness for affine moment invariants with changing illumination conditions and unknown blurring, an illumination and blur invariant is proposed which is based on the gray light model, image blurring theory and basic moment invariants theory. Combining the geometric affine moment invariants with the proposed illumination and blur invariants, the combined illumination, blur and affine (CIBA) moment invariants are built and their invariant features of illumination, blur and similarity transform (i.e. rotation, scaling and translation) are theoretically proved. Taking multiple images of three spacecraft models as examples, the average recognition accuracy by using CIBA moment invariants in a linear minor distance classifier can reach 86.37%, which is a 94.00% improvement compared with the affine moment invariants, and a 24.54% improvement as compared with the illumination moment invariants. CIBA moment invariants can effectively solve the problem in the identification of spacecraft under different conditions of illumination, unknown blurring and pose. They enhance the target recognition robustness which is based on moment invariants.

Key words: illumination invariant, blur invariant, affine transforms, moment invariant, object recognition, image recognition

中图分类号:

V19
TP391.4

徐贵力, 徐静, 王彪, 田裕鹏, 郭瑞鹏, 吕温. 基于光照模糊相似融合不变矩的航天器目标识别[J]. 航空学报, 2014, 35(3): 857-867.

XU Guili, XU Jing, WANG Biao, TIAN Yupeng, GUO Ruipeng, LV Wen. CIBA Moment Invariants and Their Use in Spacecraft Recognition Algorithm[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014, 35(3): 857-867.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

基于光照模糊相似融合不变矩的航天器目标识别

CIBA Moment Invariants and Their Use in Spacecraft Recognition Algorithm

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