Title :
Modified Hopfield neural network computational technique for real-time fusion of multimode radar/SAR imagery
Author :
Shkvarko, Yuriy V. ; Santos, Stewart R. ; Tuxpan, José ; Espadas, Eduardo
Author_Institution :
CINVESTAV del IPN, Unidad Guadalajara, Guadalajara, Mexico
Abstract :
We address a new approach to the problem of improvement of the quality of remote sensing (RS) imagery obtained with multimode imaging radar/SAR systems that employ different image formation methods via performing the collaborative RS image/method fusion. The collaborative considerations involve adaptive adjustment of the user-controllable regularization degrees of freedom in a particular image formation scheme. We develop the Hopfield neural network-adapted computational methodology for performing such data fusion employing the recently developed descriptive experiment design regularization (DEDR) framework aggregated with the variational analysis (VA) image enhanced approach. The addressed modified maximum entropy neural network (MENN) technique performs the collaborative reconstruction-fusion task in an efficient computational fashion ensuring on-line dynamic updates only of higher quality information from the input multimode image frames. The reported simulations verify that the developed DEDR-VA optimal MENN fusion technique outperforms the recently proposed iterative enhanced radar/SAR imaging methods both in the achievable resolution enhancement and the convergence rate.
Keywords :
Hopfield neural nets; geophysical image processing; image enhancement; image fusion; radar imaging; radar resolution; remote sensing; synthetic aperture radar; Hopfield neural network computational technique; collaborative reconstruction-fusion task; collaborative remote sensing; computational methodology; convergence rate; data fusion; degrees of freedom; descriptive experiment design regularization framework; image enhancement; image formation method; image formation scheme; maximum entropy neural network technique; multimode SAR imagery fusion; multimode radar imagery fusion; remote sensing imagery; resolution enhancement; variational analysis; Artificial neural networks; Image reconstruction; Image restoration; Imaging; Minimization; Neurons; Noise;
Conference_Titel :
Radar Symposium (IRS), 2011 Proceedings International
Conference_Location :
Leipzig
Print_ISBN :
978-1-4577-0138-2