The proposed MDM and calibration method can be extended to handle more complex lens distortion models by incorporating higher-order terms or non-polynomial functions into the distortion model. For higher-order terms, additional parameters can be introduced to capture the increased complexity of the distortion. This would involve expanding the distortion model to include terms beyond the traditional radial and decentering distortions, such as tangential distortion or higher-order radial distortions.
In the case of non-polynomial functions, the distortion model can be adapted to accommodate these functions by using a more flexible parameterization scheme. This could involve fitting the distortion model to the specific characteristics of the lens distortion using techniques like spline interpolation or neural networks. By incorporating these advanced modeling techniques, the MDM can be tailored to handle a wider range of distortion patterns and improve the accuracy of stereo vision systems in capturing complex lens distortions.