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Proceedings Paper

Data-dependent Haar-like transform for signal and image compression
Author(s): A. Avudainayagam; C. Vani
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Paper Abstract

Exploiting the geometrical interpretation of the Haar transform as a rotation of the coordinate system by an angle (pi) /4, a new Haar-like transform is proposed which rotates the co-ordinate system by an angle which depends on the data. This data dependent transform gives better compression ratios for both signals and images than the Haar transform.

Paper Details

Date Published: 5 December 2001
PDF: 8 pages
Proc. SPIE 4478, Wavelets: Applications in Signal and Image Processing IX, (5 December 2001); doi: 10.1117/12.449715
Show Author Affiliations
A. Avudainayagam, Indian Institute of Technology/Madras (India)
C. Vani, Indian Institute of Technology/Madras (India)


Published in SPIE Proceedings Vol. 4478:
Wavelets: Applications in Signal and Image Processing IX
Andrew F. Laine; Michael A. Unser; Akram Aldroubi, Editor(s)

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