An Algorithm for Low Memory Wavelet Image Compression

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An Algorithm for Low Memory Wavelet Image Compression
As wavelet-based image coding is set to become more widely used (e.g. with the completion of the JPEG2000 standard), memory efficiency for wavelet-based coding is becoming an increasingly important issue. In this paper we present a complete system to perform low memory wavelet image coding. Our approach is "line-based" in that the images are read line by line and only the minimum required number of lines is kept in memory. The line-based transform is combined with a low memory entropy coder that does not require any global image information. Our system achieves a large (two orders of magnitude) reduction in memory requirements compared to other available coders, with limited performance loss (e.g., less than 0.5dB).
Christos Chrysafis, Antonio Ortega
Added 25 Oct 2009
Updated 25 Oct 2009
Type Conference
Year 1999
Where ICIP
Authors Christos Chrysafis, Antonio Ortega
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