With the rapid development and popularity of the Internet, multimedia security has become a
general essential concern. Especially, as manipulation of digital images gets much easier …

The growth of high speed computer networks and that of Internet, in particular, has explored
means of new business, scientific, entertainment, and social opportunities. Ironically, the …

Information-hiding techniques have recently become important in a number of application
areas. Digital audio, video, and pictures are increasingly furnished with distinguishing but …

We consider the problem of embedding one signal (eg, a digital watermark), within another"
host" signal to form a third," composite" signal. The embedding is designed to achieve …

The paper discusses the feasibility of coding an" undetectable" digital water mark on a
standard 512/spl times/512 intensity image with an 8 bit gray scale. The watermark is …

The coming decades may see the large scale deployment of networked cyber-physical
systems to address global needs in areas such as energy, water, health care, and …

Multimedia watermarking technology has evolved very quickly during the last few years. A
digital watermark is information that is imperceptibly and robustly embedded in the host data …

In the last few years, a large number of schemes have been proposed for hiding copyright
marks and other information in digital pictures, video, audio and other multimedia objects …

Quantum steganography is the technique which hides a secret message into quantum
covers such as quantum images. In this paper, two blind LSB steganography algorithms in …

The present invention provides systems and methods for secure transaction management
and electronic rights protection. Electronic appliances such as computers equipped in …