Hybrid diversification operator-based evolutionary approach towards tomographic image reconstruction
Qureshi, S. A., Mirza, S. M., Rajpoot, Nasir M. (Nasir Mahmood) and Arif, Muhammad. (2011) Hybrid diversification operator-based evolutionary approach towards tomographic image reconstruction. IEEE Transactions on Image Processing, Vol.20 (No.7). pp. 1977-1990. ISSN 1057-7149Full text not available from this repository.
Official URL: http://dx.doi.org/10.1109/TIP.2011.2107328
The proposed algorithm introduces a new and efficient hybrid diversification operator (HDO) in the evolution cycle to improve the tomographic image reconstruction and diversity in the population by using simulated annealing (SA), and the modified form of decreasing law of mutation probability. This evolutionary approach has been used for parallel-ray transmission tomography with the head and lung phantoms. The algorithm is designed to address the observation that the convergence of a genetic algorithm slows down as it evolves. The HDO is shown to yield a higher image quality as compared with the filtered back-projection (FBP), the multiscale wavelet transform, the SA, and the hybrid continuous genetic algorithm (HCGA) techniques. Various crossover operators including uniform, block, and image-row crossover operators have also been analyzed, and the latter has been generally found to give better image quality. The HDO is shown to yield improvements of up to 92% and 120% when compared with FBP in terms of PSNR, for 128 × 128 head and lung phantoms, respectively.
|Item Type:||Journal Article|
|Subjects:||Q Science > QA Mathematics
Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software
R Medicine > RC Internal medicine
|Divisions:||Faculty of Science > Computer Science|
|Library of Congress Subject Headings (LCSH):||Genetic algorithms, Simulated annealing (Mathematics), Tomography, Wavelets (Mathematics), Image reconstruction, Radon transforms|
|Journal or Publication Title:||IEEE Transactions on Image Processing|
|Official Date:||July 2011|
|Page Range:||pp. 1977-1990|
|Access rights to Published version:||Restricted or Subscription Access|
|Funder:||Higher Education Commission (HEC), Islamabad, Pakistan|
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