Study on the Positioning Error of Turntable Based on Machine Vision System

Autor: Teng Fei Li, Sheng Jiang Yin, Fu Sheng Yu, Zhong Guo Sun, Wei Kang Shi
Rok vydání: 2014
Předmět:
Zdroj: Applied Mechanics and Materials. :467-471
ISSN: 1662-7482
DOI: 10.4028/www.scientific.net/amm.530-531.467
Popis: This paper developed a turntable positioning error measurement system based on machine vision. The system consists of image acquisition devices, the image acquisition card, computer and data processing software and other components. Among them, the image acquisition devices consisted of two digital CCD cameras and two microscope objectives. The image acquisition devices capture images of fixture fixed on the turntable in horizontal and vertical direction. Then, the collected images are processed by adopting the filtering method, binarization method, edge detection method, calibration method and other steps. The high-accuracy measure of turntables positioning errors is realized, and the error histogram is drawn. Theoretical analysis and experimental results show that the method is correct and feasible.
Databáze: OpenAIRE