Goutam Ghosh

Work place: Institute of Radio Physics and Electronics, University of Calcutta, Kolkata, India

E-mail: goggle.rpe@gmail.com


Research Interests: Speech Synthesis, Speech Recognition, Image Processing, Image and Sound Processing, Pattern Recognition


Goutam Ghosh was born in 1949. He graduated with Physics Honours in 1969 from the University of Calcutta and thereafter obtained the B.Tech. degree in Electronics and Electrical Communication Engineering from I.I.T. Kharagpur in 1972, the M.Tech. and Ph.D.(Tech.) degrees in Radio Physics and Electronics from the University of Calcutta in 1974 and 1990 respectively. He is presently a Professor in the Department of Radio Physics and Electronics and also acting as the Deputy Co-ordinator of the Centre of Advanced Study in Radio Physics and Electronics, Calcutta University from April 2011, Director (Hony.), UGC-Networking Resource Centre in Physical Sciences, Calcutta University, Director (Hony.) of the Centre for Teleinfrastruktur (CTIF) – India. His research interests include Gunn-diode Oscillators, Power Combiners, Microwave Properties of Conducting Polymers and Rubbers, Electromagnetics, Speech Recognition and Processing, Biomedical image Watermarking. Dr. Ghosh is a life member of the Society of EMC Engineers (India);

Author Articles
Secure Transmission and Recovery of Embedded Patient Information from Biomedical Images of Different Modalities through a Combination of Cryptography and Watermarking

By Subhajit Koley Koushik Pal Goutam Ghosh Mahua Bhattacharya

DOI: https://doi.org/10.5815/ijigsp.2014.04.03, Pub. Date: 8 Mar. 2014

In this paper a new type of information hiding skill in biomedical images is proposed through a combination of cryptography and digital watermarking to achieve the enhancement in confidential and authenticated data storage and secured transmission. Here patient's name and doctor's name are considered as patient's information which is encrypted using cryptography and embedded in the scan image of that patient through watermarking. RSA algorithm is used for encryption and higher order bit LSB replacement technique is used for embedding the information. The private keys are also embedded in the cover image to have better security and accurate recovery of the hidden information. The outcome of the proposed methodology shows that the hidden information doesn't affect the cover image and it can be recovered efficiently even from several noisy images. The strength of the proposed embedding scheme is also supported by several image quality matrices.

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