Vol 3, No 2 (2000)
Basic sciences
Published online: 2003-05-27
Submitted: 2012-01-23
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Wavelet compression of nuclear medicine images

Edward Oczeretko, Waldemar Rakowski, Dorota Jurilewicz
Nucl. Med. Rev 2000;3(2):153-156.
Vol 3, No 2 (2000)
Basic sciences
Published online: 2003-05-27
Submitted: 2012-01-23

Abstract

BACKGROUND: The wavelet transform is a new mathematical tool for the analysis of signals and images. The powerful lossy compression techniques are built on the wavelets.
METHODS: The static liver scans (byte mode acquisition, 128 x 128 matrix size) were studied. Four level wavelet transform was performed for image compression by means of biorthogonal filters with linear phase characteristic. The SPIHT technique (Set Partition in Hierarchical Trees) was used to code the wavelet coefficients.
RESULTS: The compression ratios 90:1, with a good quality of decompressed images, were achieved (PSNR > 32).
CONCLUSIONS: The wavelet compression of scintigrams may be a useful practical tool because of substantial disk space saving and the reduction of transmission time. The decompression of images does not significantly affect their quality.

Abstract

BACKGROUND: The wavelet transform is a new mathematical tool for the analysis of signals and images. The powerful lossy compression techniques are built on the wavelets.
METHODS: The static liver scans (byte mode acquisition, 128 x 128 matrix size) were studied. Four level wavelet transform was performed for image compression by means of biorthogonal filters with linear phase characteristic. The SPIHT technique (Set Partition in Hierarchical Trees) was used to code the wavelet coefficients.
RESULTS: The compression ratios 90:1, with a good quality of decompressed images, were achieved (PSNR > 32).
CONCLUSIONS: The wavelet compression of scintigrams may be a useful practical tool because of substantial disk space saving and the reduction of transmission time. The decompression of images does not significantly affect their quality.
Get Citation

Keywords

wavelet transform; image procesing; wavelet compression

About this article
Title

Wavelet compression of nuclear medicine images

Journal

Nuclear Medicine Review

Issue

Vol 3, No 2 (2000)

Pages

153-156

Published online

2003-05-27

Bibliographic record

Nucl. Med. Rev 2000;3(2):153-156.

Keywords

wavelet transform
image procesing
wavelet compression

Authors

Edward Oczeretko
Waldemar Rakowski
Dorota Jurilewicz

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