Introduction to wavelet-based compression of medical images

Radiographics : a Review Publication of the Radiological Society of North America, Inc
D F SchomerW A Murphy

Abstract

Medical image compression can significantly enhance the performance of picture archiving and communication systems and may be considered an enabling technology for telemedicine. The wavelet transform is a powerful mathematical tool with many unique qualities that are useful for image compression and processing applications. Although wavelet concepts can be traced back to 1910, the mathematics of wavelets have only recently been formalized. By exploiting spatial and spectral information redundancy in images, wavelet-based methods offer significantly better results for compressing medical images than do compression algorithms based on Fourier methods, such as the discrete cosine transform used by the Joint Photographic Experts Group. Furthermore, wavelet-based compression does not suffer from blocking artifacts, and the restored image quality is generally superior at higher compression rates.

Citations

Mar 24, 2004·International Journal of Medical Informatics·Agnieszka SzotHamish S F Fraser
Apr 12, 2000·Computers in Biology and Medicine·A Bruckmann, A Uhl
Sep 24, 1999·Radiologic Clinics of North America·S R Baker, S Festa
May 18, 1999·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·T M BatemanJ A Case
Oct 6, 2000·Medical Engineering & Physics·M SekineY Fukui
Sep 21, 2001·Telemedicine Journal and E-health : the Official Journal of the American Telemedicine Association·M MaassM Kormano
Aug 24, 2007·AJR. American Journal of Roentgenology·Hyoun Sik WooKyoung Ho Lee
Jan 3, 2013·The Journal of Chemical Physics·Francesco Muniz-MirandaRoberto Righini
Jun 28, 2002·Dento Maxillo Facial Radiology·A JanhomG C H Sanderink
Apr 19, 2003·European Radiology·B BerghT J Vogl
May 16, 2001·Radiographics : a Review Publication of the Radiological Society of North America, Inc·R H WigginsP A Goede
Aug 4, 2016·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Wenjuan SunRuohua Zhu
Apr 15, 2003·European Radiology·B BerghT J Vogl
May 17, 2003·Investigative Radiology·Elmar KotterMathias Langer

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