IMPLICIT AND EXPLICIT CAMERA CALIBRATION - THEORY AND EXPERIMENTS

CASIA OpenIR > 09年以前成果

	IMPLICIT AND EXPLICIT CAMERA CALIBRATION - THEORY AND EXPERIMENTS
	WEI, GQ; DEMA, S
发表期刊	IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE
	1994-05-01
卷号	16 期号:5 页码:469-480
文章类型	Article
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.
关键词	Projective Mapping Back-projection Projection Implicit Distortion Compensation Perspectivity Conditions Projective Invariants Explicit Distortion Correction
WOS标题词	Science & Technology ; Technology
收录类别	SCI
语种	英语
WOS研究方向	Computer Science ; Engineering
WOS类目	Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS记录号	WOS:A1994NP14100003
引用统计	被引频次：208[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/21887
专题	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.