Real-time convolution method for generating light diffusion profiles of layered turbid media

In this paper we present a technique to obtain a diffusion profile of layered turbid media in real time by using the quasi fast Hankel transform (QFHT) and the latest graphics processing unit technique. We apply the QFHT to convolve the diffusion profiles of each layer so as to dramatically reduce t...

Full description

Saved in:
Bibliographic Details
Published inJournal of the Optical Society of America. A, Optics, image science, and vision Vol. 28; no. 6; p. 1276
Main Authors Kim, Hoe-Min, Ko, Kwang Hee, Lee, Kwan H
Format Journal Article
LanguageEnglish
Published United States 01.06.2011
Subjects
Computer Graphics
Diffusion
Light
Optical Phenomena
Time Factors
Online AccessGet more information

Cover

More Information
Summary:In this paper we present a technique to obtain a diffusion profile of layered turbid media in real time by using the quasi fast Hankel transform (QFHT) and the latest graphics processing unit technique. We apply the QFHT to convolve the diffusion profiles of each layer so as to dramatically reduce the time for the convolution step while maintaining the accuracy. In addition, we also introduce an accelerated technique to generate individual discrete diffusion profiles for each layer through parallel processing. The proposed method is 2 orders of magnitude faster than the existing method, and we validate its efficiency by comparing it with Monte Carlo simulation and another relevant methods.
ISSN:1520-8532
DOI:10.1364/JOSAA.28.001276