3D Reconstruction based on OpenGL and treatment of smoothness

3D Reconstruction based on slice-images data is a main topic of computer simulation. Surface rending is an important method of 3D Reconstruction. Because of sparsity of original data, a certain method to treat triangle or polygon that will fill in adjacent contours is necessary in order to reconstruct smooth surface while reconstructing 3D model by surface rending. In the paper, Delanuay triangulation and the shortest path method are adopted to reconstruct triangle between the adjacent contours; then triangular Bezier surface is reconstructed to fit triangular mesh, which reconstructs sharply triangular mesh and is easily implemented as well. The surface smoothness and the accuracy of 3D reconstruction are improved. The Method adopted in the paper can be easily realized and has more reference value to the improvement of reconstruction precision.