公开(公告)号：US11641457B2

公开(公告)日：2023-05-02

申请号：US17680390

申请日：2022-02-25

Applicant: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Chun Yin ,  Yuhua Cheng ,  Zeqi Wang ,  Xutong Tan ,  Kai Chen ,  Gen Qiu ,  Jianhao Luo ,  Junjie Liu ,  Zhibo Li ,  Aolin Yang

IPC: H04N13/15 ,  H04N13/239 ,  H04N13/254 ,  G06T7/33 ,  H04N13/246

Abstract: A method for high-precision true color three dimensional reconstruction of mechanical component. Firstly performs image acquisition: the left and right high-resolution grayscale cameras are fixed at same height and spaced at certain distance, an optical transmitter fixed between the two grayscale cameras, and low-resolution color camera fixed above optical transmitter, thus images of measured high-precision mechanical component are shot. Then performs image processing: all images are transmitted to a computer, which uses image processing to record surface information of measured high-precision mechanical component in the point cloud by high-precision true color three-dimensional reconstruction, which reflects color texture information of the surface, so as to realize the non-contact high-precision true color three dimensional reconstruction of high-precision mechanical component. The method uses binocular high-precision grayscale cameras instead of binocular color cameras, which broadens the range of capture wavelengths, retains richer texture details of high-precision mechanical component and improves accuracy of measurement.