Data-dependent Haar-like transform for signal and image compression

A. Avudainayagam; C. Vani

doi:10.1117/12.449715

5 December 2001 Data-dependent Haar-like transform for signal and image compression

A. Avudainayagam, C. Vani

Proceedings Volume 4478, Wavelets: Applications in Signal and Image Processing IX; (2001) https://doi.org/10.1117/12.449715
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

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.

Citation Download Citation

A. Avudainayagam and C. Vani "Data-dependent Haar-like transform for signal and image compression", Proc. SPIE 4478, Wavelets: Applications in Signal and Image Processing IX, (5 December 2001); https://doi.org/10.1117/12.449715

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