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.
| Original language | English |
|---|---|
| Title of host publication | European Conference on Biomedical Optics, ECBO 2015 |
| Publisher | Optica Publishing Group (formerly OSA) |
| ISBN (Print) | 9781628417012 |
| DOIs | |
| Publication status | Published - 2015 |
| Event | European Conference on Biomedical Optics, ECBO 2015 - Munich, Germany Duration: 21 Jun 2015 → 25 Jun 2015 |
Publication series
| Name | Optics InfoBase Conference Papers |
|---|---|
| ISSN (Electronic) | 2162-2701 |
Conference
| Conference | European Conference on Biomedical Optics, ECBO 2015 |
|---|---|
| Country/Territory | Germany |
| City | Munich |
| Period | 21/06/15 → 25/06/15 |
Bibliographical note
Publisher Copyright:© 2015 SPIE-OSA.
Keywords
- Diffuse optical tomography
- Efficient sensitivity matrix generation
- Reduced sensitivity matrix
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Mechanics of Materials