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The International Journal of Cardiac Imaging

, Volume 11, Issue 3, pp 179–186 | Cite as

Data compression of X-ray cardio-angiographic image series

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

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.

Keywords

Public Health Image Quality Clinical Evaluation Compression Ratio Storage Space 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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

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