Title :
Re-quantization Based Semi-Fragile Authentication for General Uniform Quantizer
Author :
Shen, Bo ; Kalker, Ton
Author_Institution :
Hewlett-Packard Lab., Palo Alto
fDate :
Sept. 16 2007-Oct. 19 2007
Abstract :
Semi-fragile authentication schemes are found to be useful to maintain authentication in the event of certain allowed manipulation of source content. This paper focuses on a quantization based algorithm, and extends it to more general uniform quantizers. Earlier work is found to be a special case of our generalized solution which provides more useful guideline when selecting quantizer for this type of authentication. Experimental results verified our analytical conclusion.
Keywords :
data compression; message authentication; video coding; quantization based algorithm; semifragile authentication scheme; uniform quantizer; video compression; Authentication; Encoding; Erbium; Guidelines; Laboratories; Milling machines; Quantization; Rate-distortion; Transcoding; Video compression; Authentication; Requantization; Uniform scalar quantizer;
Conference_Titel :
Image Processing, 2007. ICIP 2007. IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
978-1-4244-1437-6
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2007.4379534
