Fusion of Multispectral and Panchromatic Images using Nonsubsampled Contourlet Transform. - C. V. Jiji; Ravi Krishnan Unni (IPCV, 2008)

Fusion of Multispectral and panchromatic Images Based on the Nonsubsampled Contourlet Transform. - C. V. Jiji; Ravi Krishnan Unni (Int. J. Image Graph., 2013)

FPGA Implementation of an Improved Watchdog Timer for Safety-Critical Applications. - Ravi Krishnan Unni; Vijayanand P.; Y. Dilip (VLSID, 2018)