On the accuracy of shaping from shading algorithm for restoring three-dimensional model of printing dot

摘要

Printing quality is fundamentally influenced by the micro dot morphology. It is necessary to use an algorithm with the high accuracy to restore 3D printing dot. In this research, the accuracy of SFS (shape from shading) morphology restoring algorithm was analyzed indirectly by the micro tiny steel sphere that has a regular morphology to make sure that it could be applied to the printing dot. The result shows that the algorithm restored the 3D shape of the sphere intuitively and accurately, especially in the middle of the sphere. What's more, the restoration errors for the top and the bottom of the sphere were acceptable. Consequently, the SFS algorithm is an efficient tool to restore 3D micro objects which can be used for accurately describing the micro morphology of printing dots to control the printing quality.