Title :
Modified level set method for accurate physical and geometrical reconstruction
Author :
Eskandari, Mohammad Reza ; Safian, Reza ; Dehmollaian, Mojtaba
Author_Institution :
Electr. & Comput. Eng. Dept., Isfahan Univ. of Technol., Isfahan, Iran
Abstract :
A new method based on steepest descent and topology evolution is presented to identify an unknown scatterer shape and physical property. Level set method is modified to not only evolve an arbitrary penetrable object shape but also retrieve its relative dielectric constant. Computation time is significantly reduced and accurate reconstruction is obtained. The method accuracy is illustrated by two examples.
Keywords :
computational geometry; gradient methods; image reconstruction; permittivity; accurate physical reconstruction; geometrical reconstruction; modified level set method; physical property; relative dielectric constant; steepest descent method; topology evolution; unknown scatterer shape; Accuracy; Dielectric constant; Educational institutions; Image reconstruction; Inverse problems; Level set; Shape;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904771
