Postprocessing cylindrical surface data of a subject's head

Joseph H. Nurre

doi:10.1117/12.148699

29 July 1993 Postprocessing cylindrical surface data of a subject's head

Joseph H. Nurre

Proceedings Volume 1905, Biomedical Image Processing and Biomedical Visualization; (1993) https://doi.org/10.1117/12.148699
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1993, San Jose, CA, United States

Abstract

Full field surface data of cylindrically shaped objects, such as a human's head, can be quickly achieved by rotating a laser scanner and imaging system about the subject. The measurements are, however, subject to random noise. The noise can be due to stray external light sources or unexpected surface reflection and refraction characteristics. The noise presents itself as high frequency surface roughness and surface spikes. To smooth the data, a regularization technique is employed. First, spikes in the data were identified with a medium filter. The cylindrical format of the data required special consideration when implementing the medium filter. Surface patches further away from the cylindrical axis had fewer sampling points for determining a medium. With the spikes identified, regularization could be used to reduce the discontinuities of the surface data by interpolating these points to an appropriate location.

Citation Download Citation

Joseph H. Nurre "Postprocessing cylindrical surface data of a subject's head", Proc. SPIE 1905, Biomedical Image Processing and Biomedical Visualization, (29 July 1993); https://doi.org/10.1117/12.148699

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