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Centroid estimation based on MSER detection and Gaussian Mixture Model

  • Northwestern Polytechnical University Xian

科研成果: 书/报告/会议事项章节会议稿件同行评审

8 引用 (Scopus)

摘要

This paper proposes a sub-pixel centroid estimation algorithm for star field image recorded by CCD sensor. To handle the connected as well as partially overlapped star spots in a star region, we involve the the MSER (Maximally Stable Extremal Region) detector to discover the star spots and related characteristics of latent star spots in a star region. After extracting the star regions, we will estimate the locations of centroids in each star region simultaneously using the GMM (Gaussian Mixture Model) and Expectation-maximization (EM) algorithm, instead of segment each star spots in a star region. Using our algorithm, overlapped star spots can be discovered easily and their centroids can also be estimated effectively. Experiments on simulation data sets demonstrate effectiveness and robustness of this algorithm.

源语言英语
主期刊名ICSP 2014 - 2014 IEEE 12th International Conference on Signal Processing, Proceedings
编辑Baozong Yuan, Qiuqi Ruan, Xiaofang Tang
出版商Institute of Electrical and Electronics Engineers Inc.
774-779
页数6
版本October
ISBN(电子版)9781479921881
DOI
出版状态已出版 - 2014
活动12th IEEE International Conference on Signal Processing, ICSP 2014 - Hangzhou, 中国
期限: 19 10月 201423 10月 2014

丛书

姓名International Conference on Signal Processing Proceedings, ICSP
编号October
2015-January
ISSN(印刷版)2164-5221
ISSN(电子版)2164-523X

会议

会议12th IEEE International Conference on Signal Processing, ICSP 2014
国家/地区中国
Hangzhou
时期19/10/1423/10/14

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