Title :
Limited angle tomography using volumetric constraints
Author :
Biswas, Chaitali ; Na, Helen
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
This paper introduces a method for incorporation of volumetric a priori information into a limited angle tomographic image reconstruction process, such as that encountered in computerized ionospheric tomography (CIT). Data-dependent localized volumetric correction in projection and image domains is provided by the iterative inversion algorithm for enhanced reconstruction of two and three dimensional images of ionospheric electron density
Keywords :
computerised tomography; electron density; geophysical signal processing; image reconstruction; inverse problems; ionospheric techniques; iterative methods; 2D images; 3D images; computerized ionospheric tomography; data-dependent localized volumetric correction; image domain; image reconstruction; ionospheric electron density; iterative inversion algorithm; limited angle tomography; projection domain; volumetric a priori information; volumetric constraints; Costs; Electrons; Entropy; Image reconstruction; Ionosphere; Iterative algorithms; Iterative methods; Satellite ground stations; Shape; Tomography;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.647826
