A Practical Roadside Camera Calibration Method Based on Least Squares Optimization
文献类型：期刊论文
| 作者 | Zheng, Yuan; Peng, Silong
|
| 刊名 | IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
 |
| 出版日期 | 2014-04-01 |
| 卷号 | 15期号:2页码:831-843 |
| 关键词 | Camera calibration least squares (LS) optimization roadside camera traffic surveillance vanishing line vanishing point |
| 英文摘要 | In this paper, we propose a more practical and accurate method for calibrating the roadside camera used in traffic surveillance systems. Considering the characteristics of the traffic scenes, we propose a minimum calibration condition that consists of two vanishing points and a vanishing line, which can be easily satisfied in most traffic scenes. Based on the minimum calibration condition, we provide a calibration method to estimate camera intrinsic parameters and rotation angles, which employs least squares optimization instead of closed-form computation. Compared with the existing calibration methods, our method is suitable for more traffic scenes and is able to accurately determine more camera parameters including the principal point. By making full use of video information, multiple observations of the vanishing points are available from different objects. For more accurate calibration, we present a dynamic calibration method using these observations to correct camera parameters. As for the estimation of the camera translation vector, known lengths in the road or known heights above the road are exploited. The experimental results on synthetic data and real traffic images demonstrate the accuracy, robustness, and practicability of the proposed calibration method. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Civil ; Engineering, Electrical & Electronic ; Transportation Science & Technology |
| 研究领域[WOS] | Engineering ; Transportation |
| 关键词[WOS] | VANISHING-POINT DETECTION ; IMAGE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000334584800033 |
| 源URL | [http://ir.ia.ac.cn/handle/173211/2909]  |
| 专题 | 自动化研究所_智能制造技术与系统研究中心_多维数据分析团队 |
| 作者单位 | Chinese Acad Sci, Hitech Innovat Engn Ctr, Inst Automat, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Yuan,Peng, Silong. A Practical Roadside Camera Calibration Method Based on Least Squares Optimization[J]. IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS,2014,15(2):831-843. |
| APA | Zheng, Yuan,&Peng, Silong.(2014).A Practical Roadside Camera Calibration Method Based on Least Squares Optimization.IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS,15(2),831-843. |
| MLA | Zheng, Yuan,et al."A Practical Roadside Camera Calibration Method Based on Least Squares Optimization".IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS 15.2(2014):831-843. |
入库方式： OAI收割
来源：自动化研究所
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