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Proceedings Paper

Just noticeable difference level estimation in real-time digital signal processing
Author(s): Zbigniew Piotrowski; Wojciech Rudkowski
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Paper Abstract

Modern state-of-the art watermarking systems use precise algorithms for ensure perceptual transparency of the additional signal in the host signal presence. Various Human Auditory System (HAS) models are implemented but only few of them are computationally effective giving reliable acoustic masking effect. This paper presents efficient algorithm and its implementation for Just Noticeable Difference level estimation using HAS for data hiding application. Implementation is based on effective Johnston [1] HAS model and real-time processing using TMS 320C6713 DSK board. The results of implementation as well as subjective fidelity test using standard ITU-R BS 1116.1 are described and illustrated. Numerical results of DSP real-time implementation are compared with the Matlab off-line HAS computational model.

Paper Details

Date Published: 28 December 2007
PDF: 4 pages
Proc. SPIE 6937, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2007, 69373T (28 December 2007); doi: 10.1117/12.784905
Show Author Affiliations
Zbigniew Piotrowski, Military Univ. of Technology (Poland)
Wojciech Rudkowski, Military Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 6937:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2007

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