Multidirectional four-dimensional shape measurement system

Janusz Lenar; Robert Sitnik; Marcin Witkowski

doi:10.1117/12.907706

30 January 2012 Multidirectional four-dimensional shape measurement system

Janusz Lenar, Robert Sitnik, Marcin Witkowski

Proceedings Volume 8290, Three-Dimensional Image Processing (3DIP) and Applications II; 82900W (2012) https://doi.org/10.1117/12.907706
Event: IS&T/SPIE Electronic Imaging, 2012, Burlingame, California, United States

Abstract

Currently, a lot of different scanning techniques are used for 3D imaging of human body. Most of existing systems are based on static registration of internal structures using MRI or CT techniques as well as 3D scanning of outer surface of human body by laser triangulation or structured light methods. On the other hand there is an existing mature 4D method based on tracking in time the position of retro-reflective markers attached to human body. There are two main drawbacks of this solution: markers are attached to skin (no real skeleton movement is registered) and it gives (x, y, z, t) coordinates only in those points (not for the whole surface). In this paper we present a novel multidirectional structured light measurement system that is capable of measuring 3D shape of human body surface with frequency reaching 60Hz. The developed system consists of two spectrally separated and hardware-synchronized 4D measurement heads. The principle of the measurement is based on single frame analysis. Projected frame is composed from sine-modulated intensity pattern and a special stripe allowing absolute phase measurement. Several different geometrical set-ups will be proposed depending on type of movements that are to be registered.

Citation Download Citation

Janusz Lenar, Robert Sitnik, and Marcin Witkowski "Multidirectional four-dimensional shape measurement system", Proc. SPIE 8290, Three-Dimensional Image Processing (3DIP) and Applications II, 82900W (30 January 2012); https://doi.org/10.1117/12.907706

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