Effective wavelet-based compression method with adaptive quantization threshold and zerotree coding

Artur Przelaskowski , Marian Kazubek , Tomasz Jamrógiewicz


Efficient image compression technique especially for medical applications is presented. Dyadic wavelet decomposition by use of Antonini and Villasenor bank filters is followed by adaptive space-frequency quantization and zerotree-based entropy coding of wavelet coefficients. Threshold selection and uniform quantization is made an a base of spatial variance estimate built on the lowest frequency subband data set. Threshold value for each coefficient is evaluated as linear function of 9-order binary context After quantization zerotree construction, pruning and arithmetic coding is applied for efficient lossless data coding. Presented compression method is less complex than the most effective EZW-based techniques but allows to achieve comparable compression efficiency. Specifically our method has similar to SPIHT efficiency in MR image compression, slightly better for CT image and significantly better in US image compression. Thus the compression efficiency of presented method is competitive with the best published algorithms in the literature across diverse classes of medical images.
Author Artur Przelaskowski (FEIT / IRMT)
Artur Przelaskowski,,
- The Institute of Radioelectronics and Multimedia Technology
, Marian Kazubek - [Warsaw University of Technology (PW)]
Marian Kazubek,,
- Politechnika Warszawska
, Tomasz Jamrógiewicz (FEIT / IRMT)
Tomasz Jamrógiewicz,,
- The Institute of Radioelectronics and Multimedia Technology
Publication size in sheets0.5
Book Kuo Ccj., Chang Sf., Gudivada VN.: MULTIMEDIA STORAGE AND ARCHIVING SYSTEMS, Proceedings of SPIE: The International Society for Optical Engineering, vol. 3229, 1997, SPIE - The International Society for Optics and Photonics, ISBN 0-8194-2662-8
Keywords in Englishwavelet transform; image compression; medical image archiving; adaptive quantization
URL https://www.spiedigitallibrary.org/conference-proceedings-of-spie/3229/0000/Effective-wavelet-based-compression-method-with-adaptive-quantization-threshold-and/10.1117/12.290355.full
Languageen angielski
Score (nominal)10
Publication indicators WoS Citations = 1; Scopus Citations = 2; GS Citations = 4.0
Citation count*4 (2013-01-30)
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