Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : June 28, 2023 - July 01, 2023
Calibaration of a galvanometric scanner is important in providing distortion-free line-art projections. In particular, accurate projection in a dynamic scene requires an efficient backward model that maps a target projection point to voltages applied to the scanner. However, most of existing calibration methods offer forward models, which are difficult to invert efficiently. In this study, we investigate two types of simple backward models. Through experiments, we argue that the model representing the voltages by polynomials in terms of the light direction vector components achieves high projection accuracies for a wide range of target depths, despite the fact that it must introduce an approximate optical center.
