Title :
Exploiting known latitudinal variations for improved limited-angle tomographic reconstruction of the plasmasphere
Author :
Santhanam, Naveen ; Newman, Timothy S. ; Gallagher, Dennis L.
Author_Institution :
Dept. of Comput. Sci., Alabama Univ., Huntsville, AL, USA
Abstract :
A new technique that exploits physical constraints for improved accuracy in volume reconstruction of the terrestrial plasmasphere´s plasma density is presented. The goal of the work is to support volume reconstruction given a small number of 2D external views from locally close viewing positions. The technique is aimed at allowing exploitation of time-series 2D image data from the EUV sensor on NASA´s IMAGE satellite. Reconstruction quality benchmarking results on synthetic data are also presented.
Keywords :
Earth rotation; astronomy computing; image reconstruction; imaging; magnetosphere; terrestrial atmosphere; time series; tomography; ultraviolet detectors; EUV sensor; NASA IMAGE satellite; latitudinal variations; limited-angle tomographic reconstruction; terrestrial plasmasphere plasma density; time-series 2D image data; volume reconstruction; Flyback transformers; Helium; Image reconstruction; NASA; Plasma density; Plasma measurements; Plasma waves; Satellites; Tomography; Ultraviolet sources;
Conference_Titel :
Information Technology: Coding and Computing, 2004. Proceedings. ITCC 2004. International Conference on
Print_ISBN :
0-7695-2108-8
DOI :
10.1109/ITCC.2004.1286719