Title :
A New Modeling for Finding Optimal Weighted Distances
Author :
Cheung, Yam Ki ; Daescu, Ovidiu ; Kurdia, Anastasia
Author_Institution :
Dept. of Comput. Sci., Univ. of Texas-Dallas, Richardson, TX
fDate :
June 29 2008-July 5 2008
Abstract :
We prove that each optimization problem associated with finding an optimal straight line distance between two regions of a weighted planar subdivision can be restated as a two-dimensional sum of linear fractionals problem over an arc of the unit circle. Compared to previous results, that involved more general functions over two dimensional domains, our solution has potential for order of magnitude speedups. The problem has a few bio-medical applications, including optimal treatment planning in intensity modulated radiation therapy and brachytherapy.
Keywords :
brachytherapy; image segmentation; medical image processing; optimisation; brachytherapy; intensity modulated radiation therapy; linear fractionals problem; optimization; treatment planning; weighted planar subdivision; Bioinformatics; Biomedical applications of radiation; Biomedical imaging; Biosensors; Brachytherapy; Computer science; Costs; Intensity modulation; Minimally invasive surgery; Neoplasms; line distance; linear fractionals; weighted region;
Conference_Titel :
Biocomputation, Bioinformatics, and Biomedical Technologies, 2008. BIOTECHNO '08. International Conference on
Conference_Location :
Bucharest
Print_ISBN :
978-0-7695-3191-5
Electronic_ISBN :
978-0-7695-3191-5
DOI :
10.1109/BIOTECHNO.2008.31
