Improved calibration method of binocular vision measurement system for large hot forging

2016 ◽  
Author(s):  
Jinghao Yang ◽  
Wei Liu ◽  
Chaonan Fan ◽  
Shijie Li ◽  
Fuji Wang ◽  
...  
Keyword(s):  
Binocular Vision ◽  
Measurement System ◽  
Hot Forging ◽  
Calibration Method ◽  
Vision Measurement

Design of Program Framework of Binocular Vision Measurement System Based on DM642

2012 ◽  
Vol 220-223 ◽  
pp. 1311-1314
Author(s):  
Chen Dong ◽  
Shu Guang Dai
Keyword(s):  
Signal Processing ◽  
Binocular Vision ◽  
Measurement System ◽  
Video Processing ◽  
Measurement Instrument ◽  
Rapid Progress ◽  
Image Capture ◽  
Video Signal Processing ◽  
Vision Measurement ◽  
Binocular Measurement

As the rapid progress and development of DSP technology, a new way to solve the video signal processing was accepted. At present, binocular measurement instrument are mostly based on image capture card and PC on the market, expensive and bulky. For this problem, binocular vision measurement system based on DSP has been used. The design of elementary program structure about video processing which based on DSP/BIOS was finished and verified for its real-time. The results of the experiment show that the driver can be well used in the system.

Precision calibration method for binocular vision measurement systems based on arbitrary translations and 3D-connection information

2016 ◽  
Vol 27 (10) ◽  
pp. 105009 ◽  
Author(s):  
Jinghao Yang ◽  
Zhenyuan Jia ◽  
Wei Liu ◽  
Chaonan Fan ◽  
Pengtao Xu ◽  
...  
Keyword(s):  
Binocular Vision ◽  
Calibration Method ◽  
Measurement Systems ◽  
Vision Measurement

Research on Calibration Method of Linear Structured Light Vision Measurement System

2014 ◽  
Vol 644-650 ◽  
pp. 1234-1239
Author(s):  
Tao He ◽  
Yu Lang Xie ◽  
Cai Sheng Zhu ◽  
Jiu Yin Chen
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Structured Light ◽  
Target Position ◽  
Calibration Method ◽  
Measurement Model ◽  
Sensor Calibration ◽  
Vision Measurement ◽  
Set Up ◽  
Structured Light Vision

This template explains and demonstrates how to design a measurement system based on the size of the linear structured light vision, the system could works at realized the high precision and fast measurement of the size of mechanical parts, and accurate calibration of the system. First of all, this paper set up the experimental platform based on linear structured light vision measurement. Secondly, this paper established a system of measurement model, and puts forward a new method of calibration of structured light sensor and set up the mathematical model of sensor calibration. This calibration method only need to use some gage blocks of high precision as the target, the target position need not have a strict requirements, and the solving process will be more convenient, much easier to field use and maintenance. Finally, measuring accuracy on the system by gage blocks with high precision is verified, the experiment shows that measurement accuracy within 0.050 mmin the depth of 0-80 - mm range. This system can satisfy the demands of precision testing of most industrial parts .with its simple calibration process and high precision, it is suitable for the structured light vision calibration.

Novel Calibration Method for Axes in Line Structured Light Vision Measurement System

2012 ◽  
Vol 39 (11) ◽  
pp. 1108014 ◽  
Author(s):  
陈新禹 Chen Xinyu ◽  
马孜 Ma Zi ◽  
陈天飞 Chen Tianfei ◽  
李鹏 Li Peng
Keyword(s):  
Measurement System ◽  
Structured Light ◽  
Calibration Method ◽  
Vision Measurement ◽  
Structured Light Vision

Calibration of binocular vision measurement system

2016 ◽  
Vol 24 (2) ◽  
pp. 300-38 ◽  
Author(s):  
杨景豪 YANG Jing-hao ◽  
刘 巍 LIU Wei ◽  
刘 阳 LIU Yang ◽  
王福吉 WANG Fu-ji ◽  
贾振元 JIA Zhen-yuan
Keyword(s):  
Binocular Vision ◽  
Measurement System ◽  
Vision Measurement

scholarly journals Automatic Laser Interferometer And Vision Measurement System For Stripe Rod Calibration

2015 ◽  
Vol 22 (4) ◽  
pp. 491-502 ◽  
Author(s):  
Min Zhao ◽  
Qiu-Hong Huang ◽  
Ling-Jian Zhu ◽  
Zong-Ming Qiu
Keyword(s):  
Measurement System ◽  
Measurement Method ◽  
Laser Interferometer ◽  
Image Data ◽  
Ccd Camera ◽  
Calibration Method ◽  
Feedback Signal ◽  
Long Distance ◽  
Loop Control ◽  
Vision Measurement

Abstract In order to calibrate the stripe precision of a leveling rod, an automatic laser interferometer and a vision measurement system were designed by Xi’an University of Technology in China. The rod was driven by a closed-loop control and the data were collected at the stop state to ensure precision. The laser interferometer provided not only the long distance data but also a position feedback signal in the automatic control loop. CCD camera and a vision measurement method were used to inspect the stripe edge position and defect. A pixel-equivalent self-calibration method was designed to improve precision. ROI (regions of interest) method and an outline tracing method were designed to quickly extract multiple stripe edges. A combination of the image data with the interferometer data reduces control difficulty and ensures the measurement accuracy. The vision measurement method reached sub-pixel precision and the defective edges were reported. The system can automatically calibrate a stripe leveling rod with a high degree of efficiency and precision.

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