公开(公告)号：US20210172732A1

公开(公告)日：2021-06-10

申请号：US16828902

申请日：2020-03-24

Applicant: Industrial Technology Research Institute

Inventor： Kai-Shiang GAN ,  Po-Lung CHEN ,  Chun-Yuan CHEN ,  Chien-Chun KUO

IPC: G01B11/25 ,  G06T17/20

Abstract: A projecting apparatus includes a projecting device, an image-capturing device and a processing device. The projecting device projects a reversible structured light code onto a surface. The image-capturing device captures the reversible structured light code projected onto the surface and obtains image data. The processing device is coupled to the projecting device and the image-capturing device. The processing device receives the image data, generates three-dimensional point cloud information by performing decoding on the image data, and obtains scanning shift information corresponding to the projecting device according to the three-dimensional point cloud information and three-dimensional information corresponding to the surface.