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Aiming at the issue that mesh smoothing is hard to balance in terms of noise removing and feature preserving, in this paper, we combine the facet normal representing global geometric features of the mesh with the vertex normal characterizing local details of the mesh and propose a bi-normal mesh smoothing method based on vertex feature selection (BNBVF). Firstly, the guided filtering algorithm is extended to calculate accurately the facet normal in the field of geometric processing. The key ofdoi:10.1109/access.2020.3022628 fatcat:cbji7jv7nbd6zjcfhtlfcjc3o4