NDLI: Orthonormal sets of filters obtained by modulations and rotations of a prototype

Content Provider	IEEE Xplore Digital Library
Author	Bernardini, R. Kovacevic, J.
Copyright Year	1997
Description	Author affiliation: LCAV-SSC-DE, EPFL, Lausanne, Switzerland (Bernardini, R.)
Abstract	Summary form only given. In the past decade the field of image processing has grown considerably, and although various successful techniques have been developed for tasks such as image compression, understanding and segmentation, one final piece is missing. Bearing in mind that ultimately, an image is evaluated by a human observer, it is obvious that the usual mean-square error is not appropriate and thus we still sorely lack subjective measures of image quality. Some physiological results point out that the early stage of the human visual system (HVS) works like a filter bank on the retinal image. The filters in such a filter bank can be seen as being obtained by rotation and modulation from an original prototype filter. This work is just the first step and concentrates on the design of local bases obtained by unitary transformations of a single (or more than one) prototype filter.
File Size	70561
File Format	PDF
ISBN	0818677619
ISSN	10680314
DOI	10.1109/DCC.1997.582079
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-03-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Prototypes Filter bank Humans Image processing Image segmentation Image quality Visual system Retina Fourier transforms Testing
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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