Title :
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
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;
Conference_Titel :
Mechatronic Sciences, Electric Engineering and Computer (MEC), Proceedings 2013 International Conference on
Conference_Location :
Shengyang
Print_ISBN :
978-1-4799-2564-3
DOI :
10.1109/MEC.2013.6885198
