Camera Calibration for Plate Refractive Imaging System

This paper presents a study of an important imaging system, called the plate refractive imaging system. The system comprises of a perspective camera looking through one or more planar parallel plates to the target imaging environment. Such as the perspective camera captures the object through an infrared filter which is used in the infrared navigator for surgeries. Sometimes, we have to calibrate the camera without removing the plate. Up to now, it does not have a valid algorithm to do so. In this paper, a plate refractive camera calibration model is proposed for the imaging systems that incorporate a refractive plate at the front end of the camera. The proposed model is based on the refractive effect of variations in the viewpoint of such systems. Both synthetic and real data show that our proposed camera model is insensitive to noise and can achieve high accuracy.