Phase and magnitude perceptual sensitivities in nonredundant complex wavelet representations

Michael B. Wakin; Michael T. Orchard; Richard G. Baraniuk; Venkat Chandrasekaran

Phase and magnitude perceptual sensitivities in nonredundant complex wavelet representations

Michael B. Wakin, Michael T. Orchard, Richard G. Baraniuk, Venkat Chandrasekaran

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The recent development of a nonredundant complex wavelet transform allows a novel framework for image analysis. Work on this representation has recognized that the phase and magnitude of complex coefficients can be related to important geometric properties in images. Existing work on human visual system (HVS) sensitivity offers little guidance in understanding the relative importance of noise (e.g., introduced by lossy coding) in phase components and magnitude components. The distinct geometric significance of the two components would suggest that their respective errors relate to different types of image structure, and thus each would have its own unique HVS sensitivity. In this paper, we extend the study of just-noticeable-differences (JND) to magnitude/phase sensitivities in complex wavelet representations and outline and report on preliminary experiments characterizing them.

Original language	English (US)
Title of host publication	Conference Record of the Asilomar Conference on Signals, Systems and Computers
Editors	M.B. Matthews
Pages	1413-1417
Number of pages	5
Volume	2
State	Published - 2003
Event	Conference Record of the Thirty-Seventh Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States Duration: Nov 9 2003 → Nov 12 2003

Other

Other	Conference Record of the Thirty-Seventh Asilomar Conference on Signals, Systems and Computers
Country	United States
City	Pacific Grove, CA
Period	11/9/03 → 11/12/03

ASJC Scopus subject areas

Electrical and Electronic Engineering
Signal Processing
Hardware and Architecture

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Phase and magnitude perceptual sensitivities in nonredundant complex wavelet representations. / Wakin, Michael B.; Orchard, Michael T.; Baraniuk, Richard G.; Chandrasekaran, Venkat.

Conference Record of the Asilomar Conference on Signals, Systems and Computers. ed. / M.B. Matthews. Vol. 2 2003. p. 1413-1417.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wakin, MB, Orchard, MT, Baraniuk, RG & Chandrasekaran, V 2003, Phase and magnitude perceptual sensitivities in nonredundant complex wavelet representations. in MB Matthews (ed.), Conference Record of the Asilomar Conference on Signals, Systems and Computers. vol. 2, pp. 1413-1417, Conference Record of the Thirty-Seventh Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, United States, 11/9/03.

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