Shape from focus using statistics methods

Shape from focus technique can be used in the computer monocular vision, which is widely applied in the smart transportation. In this study, we proposed a novel directional statistics based focus measure for shape from focus computation. We first compute the standard deviation σ and the mean value μ in the directional neighborhood. Then use the σ/μ as the focus measure to estimate the shape. The proposed method has the virtue of noise insensitive. The results have demonstrated the robustness and feasibility of the proposed technique.