A novel calibration method based on heuristic B-spline model for fish-eye lenses

Distortion model vary from lens to lens even are same type camera because some unavoidable imperfections during manufacturing. Therefore we propose a novel calibration method based on heuristic B-spline model to identify the distortion model. Unlike common distortion models, proposed heuristic B-spline model can get better calibrated result. In order to evaluate the result of calibration, a test image is considered to compare proposed method with other distortion models. The experiment is shown that the proposed method has less mean square error (MSE) than others.