22 search results - page 2 / 5 » Lossless Compression with Security Constraints |
ICIP
2007
IEEE
14 years 7 months ago
2007
IEEE
In this paper we propose a new joint encryption and lossless compression technique designed for large images 1 . The proposed technique takes advantage of the Mojette transform pr...
ICIP
2002
IEEE
13 years 10 months ago
2002
IEEE
—Several techniques based on the three–dimensional (3-D) discrete cosine transform (DCT) have been proposed for volumetric data coding. These techniques fail to provide lossles...
IJIT
2004
13 years 6 months ago
2004
In this paper we investigate the watermarking authentication when applied to medical imagery field. We first give an overview of watermarking technology by paying attention to frag...
DCC
2007
IEEE
14 years 4 months ago
2007
IEEE
We consider video sequences that have been encrypted uncompressed. Since encryption masks the source, traditional data compression algorithms are rendered ineffective. However, it...
ICMCS
2007
IEEE
13 years 11 months ago
2007
IEEE
EROS is the largest database in the world of high resolution art pictures. The TSAR project is designed to open it in a secure, efficient and user-friendly way that involves cryp...