Title :
Multi-resolution access control algorithm based on fractal coding
Author :
Roche, S. ; Dugelay, J. -L ; Molva, R.
Author_Institution :
Inst. EURECOM, Sophia Antipolis, France
Abstract :
This paper presents, a new technique for compression and secure image coding that is based on the iterated function system (IFS). A multi-resolution access control algorithm based on the convergence control of an iterative image reconstruction process is investigated. For multimedia applications an icon representation of low image quality is extracted directly from the encrypted data flow thanks to the partial self-affinity properties inherent to the local-IFS. The robustness of our scheme is due to the inherent high correlation of image data and to the non-linear decoding process
Keywords :
correlation methods; data communication; decoding; fractals; image coding; image reconstruction; image representation; image resolution; iterative methods; multimedia communication; security of data; convergence control; data security; encrypted data flow; fractal coding; icon representation; image compression; image data correlation; iterated function system; iterative image reconstruction; local-IFS; low image quality; multimedia applications; multiresolution access control algorithm; nonlinear decoding; partial self-affinity properties; secure image coding; Access control; Convergence; Cryptography; Data mining; Fractals; Image coding; Image quality; Image reconstruction; Iterative algorithms; Robustness;
Conference_Titel :
Image Processing, 1996. Proceedings., International Conference on
Conference_Location :
Lausanne
Print_ISBN :
0-7803-3259-8
DOI :
10.1109/ICIP.1996.560427
