Design and implementation of a three-dimensional visual measurement

Author

Li Haihua ; Bi Yan

Author_Institution

Mech. & Electr. Eng. Div., HuaZhong Univ. of Sci. & Technol., Wuhan, China

fYear

2013

fDate

20-22 Dec. 2013

Firstpage

960

Lastpage

963

Abstract

The three-dimensional scanning system for positioning the workpieces on CNC machine is discussed in this paper. It is designed by the principle of photogrammetry. This experimental system is composed of three camera-projector combinations. The stripe is passed to the measured target by projector, and then gathering the image of the target by cameras. Finally, the point cloud distribution maps can be gotten after analysis and calculation for the image. It represents the three-dimensional characteristics of the test target. The system was calibrated and the experimental results show that it has small error for measurement. It can complete the three-dimensional scanning of the workpiece without moving the camera and projector, and be suitable for using on CNC machine tools.

Keywords

cameras; computerised numerical control; image processing; machine tools; optical projectors; photogrammetry; 3D scanning system; 3D visual measurement; CNC machine tools; camera-projector combinations; photogrammetry; point cloud distribution maps; workpiece positioning; Accuracy; Calibration; Cameras; Computer numerical control; Educational institutions; Three-dimensional displays; Vectors; 3D Scanning; Image Processing; Machine Vision;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronic Sciences, Electric Engineering and Computer (MEC), Proceedings 2013 International Conference on

Conference_Location

Shengyang

Print_ISBN

978-1-4799-2564-3

Type

conf

DOI

10.1109/MEC.2013.6885198

Filename

6885198