Fast centroid estimation algorithm for coordinates measurement of infrared markers

Lingfei Zhang; Gang Chen; Dong Ye; Rensheng Che

doi:10.1117/12.815008

12 January 2009 Fast centroid estimation algorithm for coordinates measurement of infrared markers

Lingfei Zhang, Gang Chen, Dong Ye, Rensheng Che

Proceedings Volume 7133, Fifth International Symposium on Instrumentation Science and Technology; 713321 (2009) https://doi.org/10.1117/12.815008
Event: International Symposium on Instrumentation Science and Technology, 2008, Shenyang, China

Abstract

To determine the coordinates of infrared markers, it is very important for the binocular vision system based on lightweighted passive infrared reflective markers and infrared LED array PCB board, which is often used to measure the 3-D motion parameters of a rocket motor. Therefore, a fast centroid estimation algorithm, which segments the infrared image using self-adapting thresholding method, and then the centroid of infrared markers is calculated using improved statistical averaging technique, was developed. A comparison was made between the newly developed algorithm and other algorithms such as traditional statistical averaging, FFT and least-squares method. It is found through comparison that the new algorithm is more suitable for high-speed motion analysis due to its higher accuracy and faster processing speed. Experiments performed on real-world images show that the algorithm can greatly improve the speed of the calculation and meantime ensure the demand of precision on the basis of the better image segmentation result and improved statistical averaging technique.3

Citation Download Citation

Lingfei Zhang, Gang Chen, Dong Ye, and Rensheng Che "Fast centroid estimation algorithm for coordinates measurement of infrared markers", Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 713321 (12 January 2009); https://doi.org/10.1117/12.815008

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available