Hierarchical classification for the topography analysis of Asteroid (4179) Toutatis from the Chang'E-2 images
文献类型：期刊论文
| 作者 | Zheng, Chen1,2 ; Ping, Jinsong2; Wang, Mingyuan2
|
| 刊名 | ICARUS
 |
| 出版日期 | 2016-11-01 |
| 卷号 | 278页码:119-127 |
| 关键词 | Asteroids surfaces Image processing Satellites of asteroids |
| 英文摘要 | High spatial resolution images of the near-Earth Asteroid (4179) Toutatis are provided by a successful flyby of the Chang'E-2 spacecraft. These optical images give us a chance to closely observe the surface of this asteroid. However, some local low-contrast regions in the Chang'E-2 images limit the accuracy of the topography recognition. To solve this problem, a hierarchical classification method is suggested and developed to assist the topography analysis for Toutatis based on the Chang'E-2 optical images. The proposed method first classifies the image at both the macro level and the micro level, respectively. Then, topography of Toutatis can be explored by using the hierarchical classification result. Experimental results demonstrate that the method cannot only provide a new perspective to analyze topography objects reported previously, but also reveal some new characteristics at low-contrast regions. Namely, two new topographic characteristics are revealed, one is a connection region with a particular spectral value locating at the corner of the large lobe, and the other is an object seeming like a fixed star at the background of the images. (C) 2016 Elsevier Inc. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | COMPLEX ROTATION ; SPIN-STATE ; 4179-TOUTATIS ; LIGHTCURVE ; CRATERS ; MODEL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000381246700010 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6800]  |
| 专题 | 国家天文台_月球与深空探测研究部 |
| 作者单位 | 1.Henan Univ, Sch Math & Stat, Jinming Rd, Kaifeng 475000, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Chen,Ping, Jinsong,Wang, Mingyuan. Hierarchical classification for the topography analysis of Asteroid (4179) Toutatis from the Chang'E-2 images[J]. ICARUS,2016,278:119-127. |
| APA | Zheng, Chen,Ping, Jinsong,&Wang, Mingyuan.(2016).Hierarchical classification for the topography analysis of Asteroid (4179) Toutatis from the Chang'E-2 images.ICARUS,278,119-127. |
| MLA | Zheng, Chen,et al."Hierarchical classification for the topography analysis of Asteroid (4179) Toutatis from the Chang'E-2 images".ICARUS 278(2016):119-127. |
入库方式： OAI收割
来源：国家天文台
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