Correction Method for Keystone Distortion and Smile Distortion Based on Subpixel Transformation
文献类型：会议论文
| 作者 | Hu, Dongsheng1,2; Chen, Chuanqi1,2; Yang, Haojie1,2; Wang, Anzhi1,2; Yue, Gang1,2; Gan, Zhaoxv1,2; Chen, Xudong1,2; Yan, Yunxiang1,2,3; Zhong Y(钟悦)4 ; Xu Z(徐稚)4
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| 出版日期 | 2024 |
| 会议日期 | 2024-11-21 |
| 会议地点 | Harbin, China |
| 关键词 | Subpixel transformation Spectral image processing Keystone distortion Smile distortion |
| DOI | 10.1109/AISOMT64170.2024.10992170 |
| 页码 | 220-225 |
| 英文摘要 | This paper proposes a sub-pixel transformation method to accurately correct Keystone and Smile distortions in astronomical spectra from instruments like FASOT and LAM-OST. Peak detection with quartic polynomial fitting restores the fiber output envelope, while valley detection reveals wavelength shifts from effects like the Doppler effect. Pixel deviations remain within 0.50, with most below 0.10, preserving spectral integrity. Applied to LAMOST spectra, the method reduces fiber interference, narrows projection bandwidth, and increases peak spacing. This approach ensures precise calibration without introducing distortion, improving spectral analysis accuracy, and imaging quality. © 2024 IEEE. |
| 产权排序 | 第4完成单位 |
| 资助机构 | Chinese Academy of Sciences[U2031132, U1931206] |
| 会议录 | 2024 IEEE Academic International Symposium on Optoelectronics and Microelectronics Technology, AISOMT 2024
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| 文献子类 | Conference article (CA) |
| 学科主题 | 物理学 ; 光学 |
| 语种 | 英语 |
| URL标识 | 查看原文 |
| 资助项目 | Chinese Academy of Sciences[U2031132];Chinese Academy of Sciences[U1931206] |
| ISBN号 | 9798331542283 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28376]  |
| 专题 | 无名山观测站 云南天文台_抚仙湖太阳观测站 |
| 作者单位 | 1.College of Physics and Optoelectronic Engineering, Harbin Engineering University, Key Laboratory of Photonic Materials and Devices Physics for Oceanic Applications, Ministry of Industry and Information Technology of China, Harbin, 150001, China; 2.College Ofn Physics and Optoelectronic Engineering Harbin Engineering University, Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, Harbin, 150001, China; 3.Harbin Engineering University, Qingdao Innovation and Development Center, Qingdao, 266000, China; 4.Yunnan Observatory of Chinese Academy of Sciences, Yunnan, Kunming, 650011, China; 5.China Aerodynamics Research and Development Center, State Key Laboratory of Aerodynamics, Mianyang, 621000, China |
| 推荐引用方式 GB/T 7714 | Hu, Dongsheng,Chen, Chuanqi,Yang, Haojie,et al. Correction Method for Keystone Distortion and Smile Distortion Based on Subpixel Transformation[C]. 见:. Harbin, China. 2024-11-21. |
入库方式： OAI收割
来源：云南天文台
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