S. Esakkirajan is working as Professor in the Department of Instrumentation and Control Systems Engineering, PSG College of Technology, Coimbatore. He has twenty years of teaching experience. He has guided four research scholars in the area of signal and image processing. He has published Digital Signal Processing and Digital Image Processing text books published by McGraw Hill. He was the organizing secretary of IEEE International Conference on “Machine Vision and Image Processing” in the year 2012. He has published papers in the field of signal and image processing in reputed journals and conferences.