134 search results - page 24 / 27 » Data hiding using trellis coded quantization |
TWC
2010
13 years 28 days ago
2010
The closed-loop transmit diversity technique is used to improve the performance of the downlink channel in MIMO communication systems. In these closed-loop systems, feedback delay...
ICIP
2004
IEEE
14 years 7 months ago
2004
IEEE
The paper proposes a blind spread spectrum watermarking scheme where watermark information is embedded redundantly in the multilevel wavelet coefficients of the cover image. It ha...
ICIP
2008
IEEE
14 years 8 months ago
2008
IEEE
Hashes can be used to provide authentication of multimedia contents. In the case of images, a hash can be used to detect whether the data has been modified in an illegitimate way....
ISSS
2002
IEEE
13 years 11 months ago
2002
IEEE
With the popularity of wireless communication devices a new important dimension of embedded systems design has arisen, that of security. This paper presents for the first time des...
WWW
2008
ACM
14 years 7 months ago
2008
ACM
Mashup applications mix and merge content (data and code) from multiple content providers in a user's browser, to provide high-value web applications that can rival the user ...