Orientation Measurement for Objects with Planar Surface Based on Monocular Microscopic Vision
文献类型：期刊论文
| 作者 | Ying Li1,2 ; Xi-Long Liu1,2; De Xu1,2; Da-Peng Zhang1,2
|
| 刊名 | International Journal of Automation and Computing
 |
| 出版日期 | 2020 |
| 卷号 | 17期号:2页码:247-256 |
| 关键词 | Microscopic vision micro assembly orientation measurement optimization analytical computation. |
| ISSN号 | 1476-8186 |
| DOI | 10.1007/s11633-019-1202-y |
| 英文摘要 | Orientation measurement of objects is vital in micro assembly. In this paper, we present a novel method based on monocular microscopic vision for 3-D orientation measurement of objects with planar surfaces. The proposed methods aim to measure the orientation of the object, which does not require calibrating the intrinsic parameters of microscopic camera. In our methods, the orientation of the object is firstly measured with analytical computation based on feature points. The results of the analytical computation are coarse because the information about feature points is not fully used. In order to improve the precision, the orientation measurement is converted into an optimization process base on the relationship between deviations in image space and in Cartesian space under microscopic vision. The results of the analytical computation are used as the initial values of the optimization process. The optimized variables are the three rotational angles of the object and the pixel equivalent coefficient. The objective of the optimization process is to minimize the coordinates differences of the feature points on the object. The precision of the orientation measurement is boosted effectively. Experimental and comparative results validate the effectiveness of the proposed methods. |
| 源URL | [http://ir.ia.ac.cn/handle/173211/42300]  |
| 专题 | 自动化研究所_学术期刊_International Journal of Automation and Computing |
| 作者单位 | 1.School of Computer and Control Engineering, University of Chinses Academy of Sciences, Beijing 101408, China 2.Research Center of Precision Sensing and Control, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China |
| 推荐引用方式 GB/T 7714 | Ying Li,Xi-Long Liu,De Xu,et al. Orientation Measurement for Objects with Planar Surface Based on Monocular Microscopic Vision[J]. International Journal of Automation and Computing,2020,17(2):247-256. |
| APA | Ying Li,Xi-Long Liu,De Xu,&Da-Peng Zhang.(2020).Orientation Measurement for Objects with Planar Surface Based on Monocular Microscopic Vision.International Journal of Automation and Computing,17(2),247-256. |
| MLA | Ying Li,et al."Orientation Measurement for Objects with Planar Surface Based on Monocular Microscopic Vision".International Journal of Automation and Computing 17.2(2020):247-256. |
入库方式： OAI收割
来源：自动化研究所
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