Synthetic Aperture Imaging
Digital Image Processing: Segmentation, Enhancement, Analysis
Digital Signal Processing
Deconvolution and Denoising of Near Field Ultrasound Scans via Wavelet Shrinkage of the Log-Scalogram
J. R. B. Taylor, J. J. Mijares-Chan and G. Thomas,” Wavelet-based blind deconvolution of near-field ultrasound scans,” IET Image Processing, Vol. 9, Iss: 8, pp. 672-679, July 2015.
G.Thomas, M. Annamalai, G. Karuppannan, “Bit plane slicing technique to classify date varieties,” Agricultural Engineering International: CIGR Journal, Vol 17, No 2, June 2015.
S. Al-Rahbi, A. Manickavasagan and G. Thomas. “Back propagation neural network (BPNN) to detect surface crack on dates using RGB images,” Journal of Medical and Bioengineering, Vol. 4, No. 1, pp: 67-70, February 2015.
A. Manickavasagan, H. N. Al-Shekaili, G. Thomas, M.S. Rahman, N. Guizani and D.S. Jayas, “Edge detection features to evaluate hardness of dates using monochrome images,” Food and Bioprocess Technology, Vol. 7, Iss. 8, pp: 2251-2258, August 2014.
G. Thomas, A. Manickavasagan and R. Al-Yahyai, “Contrast enhancement using brightness preserving histogram equalization technique for classification of date varieties,” The Journal of Engineering Research, Vol. 11, No. 1, pp: 55-63, 2014.
G. Thomas, A. Manickavasagan, R. Al-Yahyai, "Classification of Dates Varieties and Effect of Motion Blurring on Standarized Moment Features," Journal of Food Measurement and Characterization, Springer, Vol. 6, pp: 21-26, December, 2012.
G. Thomas, D. Flores-Tapia, and S. Pistorius, “ Histogram Specification: a Fast and Flexible Method to Process Digital Images,” IEEE Transactions on Instrumentation & Measurement, pp. 1565-1578, Vol. 60, No. 5, May 2011.
G. Thomas, D. Flores-Tapia, S. Pistorius, and N. Fernando” Synthetic Aperture Ultrasound Imaging of XLPE Insulation of Underground Power Cables,” IEEE Electrical Insulation Magazine, Vol. 26, No. 3, pp. 24-34, May/June 2010.
D. Flores-Tapia, G. Thomas and S. Pistorius, "A Wavefront Reconstruction Method for Subsurface Microwave Imagery Acquired along Circular and Planar Scan Trajectories," IEEE Transactions on Aerospace and Electronic Systems, Vol. 46, No. 3, pp. 1346 – 1363, July 2010.
D. Flores-Tapia, G. Thomas, and S. Pistorius, "Wavefront Reconstruction of Elevation Circular Synthetic Aperture Radar Imagery using a Cylindrical Green's Function," EURASIP Journal on Advances in Signal Processing, Special Issue on Advances in Multidimensional Synthetic Aperture Radar Signal Processing, In press, forthcoming December 2009.
D. Flores-Tapia, G. Thomas and S. Pistorius, "A Wavefront Reconstruction Method for 3D Cylindrical Subsurface Radar Imaging," 2008 Best student paper for MITACS related research, IEEE Transactions on Image Processing, Vol. 17, No. 10, pp. 1908-1925, October 2008.
A. Ashtari, G. Thomas, W. Kinsner, and B.C. Flores, “Sufficient Condition for Chaotic Maps to Yield Chaotic Behavior after Frequency Modulation,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 44, No. 3, pp. 1240-1248, July 2008.
D. Flores-Tapia, Z. Moussavi, and G. Thomas, “Heart Sound Cancellation Based on Multiscale Products and Linear Prediction,” IEEE Transactions on Biomedical Engineering, Vol. 54, No. 2, pp. 234-243, Feb. 2007.
M. T. Pourazad, Z. Moussavi, and G. Thomas, "Heart Sound Cancellation from Lung Sound Recordings Using Time-Frequency Filtering, " Elsevier Journal of Medical & Biological Engineering & Computing, Vol. 44. No. 3, pp: 216-225, March 2006.