Abstract
Previous studies have showed only regions with a sensitivity higher that 1% of the maximum value can affect the recovery result for diffuse optical tomography (DOT). Two methods of efficient sensitivity map generation based on Finite Element Models (FEM) are developed based on (1) reduced sensitivity matrix and (2) parallelisation process. Time and memory efficiency of these processes are evaluated and compared with conventional methods. It is shown that the computational time for a full head model containing 200k nodes is reduced from 3 hours to 48 minutes and the required memory is reduced from 5.5 GB to 0.5 GB. For a range of mesh densities upto 320k nodes, the required memory is improved by ~1000% and computational time by ~400% to allow near real-time image recovery.
© 2015 SPIE
PDF ArticleMore Like This
Matthaios Doulgerakis, Adam Eggebrecht, Joseph Culver, and Hamid Dehghani
1041209 European Conference on Biomedical Optics (ECBO) 2017
Laura A. Dempsey, Robert J. Cooper, Samuel Powell, Andrea Edwards, Chuen-Wai Lee, Sabrina Brigadoi, Nick Everdell, Simon Arridge, Adam P. Gibson, Topun Austin, and Jeremy C. Hebden
953818 European Conference on Biomedical Optics (ECBO) 2015
Xianjin Dai, Hao Yang, and Huabei Jiang
BTu4C.4 Optics and the Brain (BRAIN) 2018