The International Journal of Cardiac Imaging

, Volume 11, Issue 3, pp 179–186

Data compression of X-ray cardio-angiographic image series

  • Marcel Breeuwer
  • Richard Heusdens
  • René Klein Gunnewiek
  • Paul Zwart
  • Hein P. A. Haas
Article

DOI: 10.1007/BF01143138

Cite this article as:
Breeuwer, M., Heusdens, R., Gunnewiek, R.K. et al. Int J Cardiac Imag (1995) 11: 179. doi:10.1007/BF01143138
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Abstract

Medical x-ray images are increasingly stored and transmitted in a digital format. To reduce the required storage space and transmission bandwidth, data compression can be applied. In this paper we describe a new method for data compression of cardio-angiographie x-ray image series. The method is based on so-called overlappedtransform coding. A comparison with the well-known block-based transform-coding methods JPEG and MPEG is presented. We found that overlapped-transform coding does not introduce any blocking artefacts, in contrast to block-based transform coding, which introduces clearly visible blocking artefacts at compression ratios above 8. Clinical evaluations of the new method have pointed out that the image quality obtained at a compression ratio of 12 is adequate for diagnostic applications.

Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • Marcel Breeuwer
    • 1
  • Richard Heusdens
    • 1
  • René Klein Gunnewiek
    • 1
  • Paul Zwart
    • 2
  • Hein P. A. Haas
    • 3
  1. 1.Philips Research WY82AA EindhovenThe Netherlands
  2. 2.Philips Medical SystemsDA BestThe Netherlands
  3. 3.Philips Multimedia CenterSunnyvaleUSA