Geometric Calibration with Multi-Viewpoints for Multi-Projector Systems on Arbitrary Shapes Using Homography and Pixel Maps

We propose a geometrical calibration method for the MISATO astronomical observatory in Japan. The primary objective of our projection system is enabling a large-scale geometrical projection calibration for near-planner arbitrarily-shaped ground projection with a multi-projector system via temporally-placed camera capturing. The obtained results exhibited an average distortion reduction of 84.7% less than the simple homography-based method.