title: Real-time convolution method for generating light diffusion profiles of layered turbid media.
abstract: 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.
authors.affiliation: School of Mechatronics, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwang-ju 500-712, South Korea. khlee@gist.ac.kr
authors.forename: Hoe-Min
authors.initials: HM
authors.lastname: Kim
authors.forename: Kwang Hee
authors.initials: KH
authors.lastname: Ko
authors.forename: Kwan H
authors.initials: KH
authors.lastname: Lee
mesh_terms: D003196:Computer Graphics; D004058:Diffusion; D008027:Light; D055620:Optical Phenomena; D013997:Time Factors