近红外星图显著性特性分析与恒星检测

王哲; 郭少军

doi:10.3788/OPE.20172506.1652

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近红外星图显著性特性分析与恒星检测

信息科学 | 更新时间：2020-07-07

- 近红外星图显著性特性分析与恒星检测
- Saliency analysis of near infrared star images and detection of fixed stars
- 光学精密工程 2017年25卷第6期页码：1652-1661
- 作者机构：
  
  海军航空工程学院, 山东烟台 264001
- 作者简介：
  
  [ "王哲(1981-), 男, 山东青州人, 副教授, 2003年于山东理工大学获得学士学位, 2009年于第二炮兵工程大学获得硕士学位, 主要从事精确制导与导航、导弹控制与测试等研究。E-mail:yokou12345@163.com" ]
  郭少军(1985-), 男, 湖南洞口人, 博士研究生, 助理工程师, 2008年于海军航空工程学院获得学士学位, 2011年于海军航空工程学院获得硕士学位, 主要从事图像处理, 模式识别与智能化处理等方面的研究。E-mail:guoba2000@163.com GUO Shao-jun, E-mail:guoba2000@163.com
- 基金信息：
  
  国家自然科学基金资助项目(61303192)
- DOI：10.3788/OPE.20172506.1652
  中图分类号： TH703
- 收稿日期：2016-12-09，
  
  录用日期：2017-1-20，
  
  纸质出版日期：2017-06-25
- 稿件说明：
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王哲, 郭少军. 近红外星图显著性特性分析与恒星检测[J]. 光学精密工程, 2017,25(6):1652-1661.

Zhe WANG, Shao-jun GUO. Saliency analysis of near infrared star images and detection of fixed stars[J]. Optics and precision engineering, 2017, 25(6): 1652-1661.
王哲, 郭少军. 近红外星图显著性特性分析与恒星检测[J]. 光学精密工程, 2017,25(6):1652-1661. DOI： 10.3788/OPE.20172506.1652.

Zhe WANG, Shao-jun GUO. Saliency analysis of near infrared star images and detection of fixed stars[J]. Optics and precision engineering, 2017, 25(6): 1652-1661. DOI： 10.3788/OPE.20172506.1652.

摘要

针对近红外星图辐射效应产生的亮斑会造成恒星计算质心与真实质心偏移的情况，文章从近红外星图背景与目标差异性入手，提出了稳定背景提取与恒星显著性提取的方法。显著性检测中利用SLIC对图像进行超像素计算，依据超像素间的几何连通性和灰度相似性进行近红外星图背景与恒星的分离。本文方法获得的恒星区域具有较好的连通性，有效解决了利用硬阈值分割恒星不连通所造成的存在大量虚假目标的问题。实验中，本文采用凝视状态拍摄的165幅近红外星图作为样本，检测获得的恒星质心与标定质心偏移方差小于0.27，证实了方法的有效性。

Abstract

Aiming at the condition that the centroid calculated by the fixed star skew the authentic centroid caused by bright spot which is generated by radiation effect of near-infrared star images

a stable method to extract background and significance of the fixed star was proposed in consideration of differences between background and objectives for near-infrared star images. In saliency detection

SLIC was used to implement superpixel calculation

and separation of near-infrared star image background and fixed star was realized according to geometry connectivity and gray similarity. The fixed star area obtained by proposed method had preferable connectivity

effectively solving problems of a large number of false objects attributed to disconnectivity of the fixed star segmented by hard threshold. In the experiment

taking 165 near-infrared star images captured in a staring state as samples

the skewing variance between the centroid of the fixed star obtained by detection and the calibration centroid is less than 0.27. The results verify the effectivity of proposed method.

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Keywords

references

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