Hentschel Random Access Tracking System HSG 84.30

Heinz Zamzow

doi:10.1117/12.23899

1 August 1990 Hentschel random access tracking system HSG 84.30

Heinz Zamzow

Proceedings Volume 1356, Image-Based Motion Measurement; (1990) https://doi.org/10.1117/12.23899
Event: Image-Based Motion Measurement, 1990, La Jolla, CA, United States

Abstract

The development of the Random Access Tracking System was initiated at the University of Muenster, Department of Orthopaedic Physiology by Dr. Theysohn. This system is a real-time high-speed and high-resolution multi-point tracking system. The moving objects are identified with retro-reflective markers which are illuminated by halogen spotlights placed around the camera lens. The video interface generates deflection signals which are fed to unique Random Access Cameras manufactured by Hamamatsu Corporation. These signals perform high speed window scanning and can sample up to 7,500 markers per second. Under certain circumstances this can be increased to 15,000 markers per second. From 1 to 126 markers can be detected in a line scan search mode. Window size may be varied in steps from 0.5% to 4.0% of the field of view. Using a small window it is possible to obtain 1 part in 32,768 in each direction of the field of view. The raw data are reduced to 2-D centroids of the targets. On-line data storage and display are possible using an industry-standard ATPC with DMA interface. Real-time feed-back is also possible. The video interface provides for off-line 3-D reconstructions using the data from two or more synchronized cameras. The system can be adapted to meet the needs of particular applications by modifying sample-rate, data transfer rate, and the number and the dimensions of the windows.

Citation Download Citation

Heinz Zamzow "Hentschel random access tracking system HSG 84.30", Proc. SPIE 1356, Image-Based Motion Measurement, (1 August 1990); https://doi.org/10.1117/12.23899

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