Research on Description Method of Quasi-3D Appearance Data with Mathematical Surface Function

摘要

Appearance data in quasi-three-dimensional (Quasi-3D) space are the height data, which are distributed over the grid points of a 2D plane. The quasi-3D data can be measured from a high-resolution 3D scanning device. With the help of mathematical surface function, the discrete space appearance data can be generalized; thus, some processing (e.g., interpolation, deformation) can be implemented. Based on segmentation of a 2D plane into blocks and the application of cubic surface functions (Coons, Bezier, and B-Spline), the appearance data in quasi-3D space are generalized processed, the parameters of the surface pieces are obtained, and some technical key points are determined. The quasi-3D appearance data can be used in scientific research, industry, high-fidelity 3D animation/film, image reproduction, and so on.