Registration examples on the Chinese character point set. PengLei LiGuangyao XiaoMang XieLi 2016 <p>From top to bottom are the four largest degradations: deformation (0.08), noise (0.05), occlusion (0.5), and outlier (2.0). The model point set is shown in blue pluses, and the scene point set is shown in red circles.</p>