Resolution scalability for arbitrary wavelet transforms in the JPEG 2000 standard

Christopher M Brislawn; Brendt E Wohlberg; Allon G Percus

doi:10.1117/12.503231

23 June 2003 Resolution scalability for arbitrary wavelet transforms in the JPEG-2000 standard

Christopher M Brislawn, Brendt E Wohlberg, Allon G Percus

Proceedings Volume 5150, Visual Communications and Image Processing 2003; (2003) https://doi.org/10.1117/12.503231
Event: Visual Communications and Image Processing 2003, 2003, Lugano, Switzerland

Abstract

A new set of boundary-handling algorithms has been developed for discrete wavelet transforms in the ISO/IEC JPEG-2000 Still Image Coding Standard. Two polyphase component extrapolation policies are specfied: a constant extension policy and a symmetric extension policy. Neither policy requires any computations to generate the extrapolation. The constant extension policy is a low-complexity option that buffers just one sample from each end of the input being extrapolated. The symmetric extension policy has slightly higher memory and conditional-logic requirements but is mathematically equivalent to wholesample symmetric pre-extension when used with whole-sample symmetric filter banks. Both policies can be employed with arbitrary lifted filter banks, and both policies preserve resolution scalability and reversibility. These extension policies will appear in Annex H, "Transformation of images using arbitrary wavelet transformations," in Part 2 ("Extensions") of the JPEG-2000 standard.

Citation Download Citation

Christopher M Brislawn, Brendt E Wohlberg, and Allon G Percus "Resolution scalability for arbitrary wavelet transforms in the JPEG-2000 standard", Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); https://doi.org/10.1117/12.503231

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