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Resolution-constrained quantization with JND-based perceptual-distortion measures
KTH, School of Electrical Engineering (EES), Sound and Image Processing.
2006 (English)In: IEEE Signal Processing Letters, ISSN 1070-9908, E-ISSN 1558-2361, Vol. 13, no 11, 703-706 p.Article in journal (Refereed) Published
Abstract [en]

When the squared error of observable signal parameters is below the just noticeable difference (JND), it is not registered by human perception. We modify commonly used distortion criteria to account for this phenomenon and study the implications for quantizer design and performance. Taking the JND into account in the design of the quantizer generally leads to improved performance in terms of mean distortion and the number of outliers. Moreover, the resulting quantizer exhibits better robustness against source mismatch.

Place, publisher, year, edition, pages
2006. Vol. 13, no 11, 703-706 p.
Keyword [en]
information theory, just noticeable difference (JND), outlier, quantization, source coding, asymptotic performance, vector quantization, quantizers, parameters, models
Identifiers
URN: urn:nbn:se:kth:diva-16136DOI: 10.1109/lsp.2006.879454ISI: 000242118400014Scopus ID: 2-s2.0-33750134455OAI: oai:DiVA.org:kth-16136DiVA: diva2:334178
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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