IMPLICIT AND EXPLICIT CAMERA CALIBRATION - THEORY AND EXPERIMENTS
文献类型：期刊论文
| 作者 | WEI, GQ; DEMA, S |
| 刊名 | IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE
 |
| 出版日期 | 1994-05-01 |
| 卷号 | 16期号:5页码:469-480 |
| 关键词 | Projective Mapping Back-projection Projection Implicit Distortion Compensation Perspectivity Conditions Projective Invariants Explicit Distortion Correction |
| 文献子类 | Article |
| 英文摘要 | By implicit camera calibration, we mean the process of calibrating a camera without explicitly computing its physical parameters. Implicit calibration can be used for both three-dimensional (3-D) measurement and generation of image coordinates. In this paper, we present a new implicit model based on the generalized projective mappings between the image plane and two calibration planes. The back-projection and projection processes are modelled separately to ease the computation of distorted image coordinates from known world points. A set of constraints of perspectivity is derived to relate the transformation parameters of the two calibration planes. Under the assumption of the radial distortion model, we present a computationally efficient method for explicitly correcting the distortion of image coordinates in frame buffer without involving the computation of camera position and orientation. By combining with any linear calibration techniques, this method makes explicit the camera physical parameters. Extensive experimental comparison of our methods with the classic photogrammetric method and Tsai's method in the aspects of 3-D measurement (both absolute and relative errors), the prediction of image coordinates, and the effect of the number of calibration points, is made using real images from 15 different depth values. |
| WOS研究方向 | Computer Science ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:A1994NP14100003 |
| 源URL | [http://ir.ia.ac.cn/handle/173211/21887]  |
| 专题 | 自动化研究所_09年以前成果 |
| 作者单位 | CHINESE ACAD SCI,INST AUTOMAT,NATL LAB PATTERN RECOGNIT,BEIJING 100080,PEOPLES R CHINA |
| 推荐引用方式 GB/T 7714 | WEI, GQ,DEMA, S. IMPLICIT AND EXPLICIT CAMERA CALIBRATION - THEORY AND EXPERIMENTS[J]. IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE,1994,16(5):469-480. |
| APA | WEI, GQ,&DEMA, S.(1994).IMPLICIT AND EXPLICIT CAMERA CALIBRATION - THEORY AND EXPERIMENTS.IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE,16(5),469-480. |
| MLA | WEI, GQ,et al."IMPLICIT AND EXPLICIT CAMERA CALIBRATION - THEORY AND EXPERIMENTS".IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE 16.5(1994):469-480. |
入库方式： OAI收割
来源：自动化研究所
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