Telescope images segmentation with OTSU method
文献类型：会议论文
| 作者 | Li, Min; Zhang, Ang; Xian, Hao |
| 出版日期 | 2018 |
| 会议日期 | JUN 26-29, 2018JUN 26-29, 2018 |
| 会议地点 | Chengdu, PEOPLES R CHINAChengdu, PEOPLES R CHINA |
| 关键词 | telescope images image segmentation OTSU method anti-noise capability |
| 卷号 | 10837 |
| DOI | 10.1117/12.2507348 |
| 页码 | 108370R |
| 英文摘要 | The optical alignment of telescopes is essential to satisfy the high request of image quality. One of the most easy and efficient approaches to correct the misalignments is based on the far-field images in the focal plane by maximizing sharpness metrics. To analyze the aberrations corresponding to different fields and various working conditions of telescopes, the image segmentation becomes an indispensable process. After image segmentation, aberrations can be studied in detail. What's more, it can also simplify the calculation. In this paper, OTSU method based on one-dimension histogram is adopted to segment the telescope images. First, images corresponding to different fields of the telescope in both designed and misaligned working conditions are simulated. Second, these images are segmented by the OTSU method to obtain a series of binary images. To verify the anti-noise capability of this method, noise images are simulated by adding Gaussian noise with different standard deviations. These noise images are also segmented by OTSU method. Then, edge checks are carried out to compare the segmentation results of noiseless images with noise images. The results indicate that for noiseless images and noise images simulated in designed working condition, the segmentation processes are accurately, while for noise images simulated in misaligned working condition, the segmentation results are influenced by noise. |
| 会议录 | Proceedings of SPIE - 9TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES
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| 文献子类 | C |
| 语种 | 英语 |
| ISSN号 | 0277-786X |
| WOS记录号 | WOS:000459720200026 |
| WOS关键词 | ALIGNMENT |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/9139]  |
| 专题 | 光电技术研究所_自适应光学技术研究室（八室） |
| 推荐引用方式 GB/T 7714 | Li, Min,Zhang, Ang,Xian, Hao. Telescope images segmentation with OTSU method[C]. 见:. Chengdu, PEOPLES R CHINAChengdu, PEOPLES R CHINA. JUN 26-29, 2018JUN 26-29, 2018. |
入库方式： OAI收割
来源：光电技术研究所
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