A Survey of Catadioptric Omnidirectional Camera Calibration

Abstract

For dozen years, computer vision becomes more popular, in which o mn idirectional camera has a larger field of view and widely been used in many fields, such as: robot navigation, visual surveillance, virtual reality, three-dimensional reconstruction, and so on. Camera calibration is an essential step to obtain threedimensional geo metric informat ion fro m a twodimensional image. Meanwh ile, the omnid irectional camera image has catadioptric distortion, which need to be corrected in many applicat ions, thus the study of such camera calibration method has important theoretical significance and pract ical applications. This paper firstly introduces the research status of catadioptric omnid irect ional imaging system; then the image formation process of catadioptric o mnid irectional imaging system has been given; finally a simple classification of o mnidirectional imaging method is given, and we discussed the advantages and disadvantages of these methods.