Title :
Adaptive mesh refinement algorithm for electrical impedance tomography based on wavelet transform
Author :
Peng, Y. ; Mo, Y.L.
Author_Institution :
Dept. of Commun. & Inf. Eng., Shanghai Univ., China
Abstract :
In the paper, an auto-adaptive refinement algorithm based on wavelet transform for electrical impedance imaging has been presented. The scale of mesh division affects the computation cost and the quality of reconstructed image. In order to trade off the two aspects, adaptive mesh refinement is applied to increase the efficiency of reconstruction algorithm by reducing computation and storage cost as well as providing problem-dependent solution structures. The resultant mesh model and reconstructed impedance distribution are shown in comparison with that of uniform mesh refinement.
Keywords :
adaptive signal processing; computerised tomography; electric impedance imaging; image reconstruction; medical image processing; wavelet transforms; adaptive mesh refinement algorithm; autoadaptive refinement algorithm; electrical impedance imaging; electrical impedance tomography; image reconstruction; mesh division; problem-dependent solution structures; reconstructed impedance distribution; reconstruction algorithm; resultant mesh model; wavelet transform; Adaptive mesh refinement; Computational efficiency; Electrodes; Image reconstruction; Impedance measurement; Surface impedance; Tomography; Voltage; Wavelet coefficients; Wavelet transforms;
Conference_Titel :
Biomedical Engineering, 2003. IEEE EMBS Asian-Pacific Conference on
Print_ISBN :
0-7803-7943-8
DOI :
10.1109/APBME.2003.1302651
