Title :
Layered encryption techniques for DCT-coded visual data
Author :
Fisch, Mark M. ; Stogner, Herbert ; Uhl, Andreas
Author_Institution :
Sch. of Telecommun. & Network Eng., Carinthia Tech Inst., Klagenfurt, Austria
Abstract :
Selective encryption technology can be applied efficiently to visual data in scalable representation. In this work we experimentally compare different ways to represent DCT-encoded visual data in a scalable way in terms of their suitability for partial encryption. We find that MPEG-2 SNR scalability is superior to several other approaches.
Keywords :
codes; cryptography; discrete cosine transforms; multimedia communication; telecommunication network reliability; DCT-coded visual data; MPEG-2 SNR scalability; layered encryption technique; Abstracts; Biomedical imaging; Cryptography; Electronic mail; Encoding; Lead; Multimedia communication;
Conference_Titel :
Signal Processing Conference, 2004 12th European
Conference_Location :
Vienna
Print_ISBN :
978-320-0001-65-7
