Real-time systems are those systems that must deliver services in a timely manner. It may not mean to be necessarily fast, but must meet some timing deadline. The deadline may be varying application to application. In general an embedded system is hidden from view within a larger system, rather many real-time and embedded systems exist, often without the awareness of their users (Washing machine, photocopier, mobile phone, car, aircraft, industrial plant, microwave oven, toothbrush, CD player, medical devices, etc.). Moreover their validation for correctness is very important, mainly for those embedded real-time systems that are safety critical, i.e., if they do not complete on a timely basis, serious consequences result. Bugs in embedded real-time systems are often difficult or expensive to fix, so before deployment proper testing is a must.
Published in Chapter:
Watermarking of Data Using Biometrics
Swanirbhar Majumder (Deemed University, India) and Tirtha Sankar Das (RCC Institute of Information Technology, India)
Copyright: © 2013
|Pages: 26
DOI: 10.4018/978-1-4666-2518-1.ch024
Abstract
These days, for the copyright protection and security of multimedia data in this age of the tech-savvy world, watermarking is a very important technique. Moreover, with the inclusion of biometrics for the watermarking schemes, the concept of “something you are” is included in the watermark and/or cover image. This thereby increases the security intensity in the multimedia data. And to give a glimpse of the technique the concepts of Watermarking, biometric and watermarking using biometrics is discussed. Finally, a particular case of real time watermarking of data using biometric is discussed by specifying a practical example.