Precision Evaluation of Reconstruction Model and Product Improvement
Jing Liu · Machine Tool & Hydraulics · 2010
The data of point cloud after CT scanning was preprocessed, section curves were fitted and the model was reconstructed. Two kinds of modes were used to assess the quality of reconstruction model. One is to evaluate the total reconstruction precision by mean square error, average error and maximal error between the blade's reconstruction model and its CAD model. The other is to evaluate the local reconstruction quality by mean square error, average error, maximal error, the perimeter and the area between the section curve on reconstruction model and the corresponding theory curve on CAD model. In addition, in the process of reconstructing model, fitted curves were zoomed according to the same scale, this can improve product model. A series of productions which have similar shape and different dimension were got.