Diagnostic quality of compressed medical images: Objective and subjective evaluation

S. E. Ghrare, M. A M Ali, Mahamod Ismail, K. Jumari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

Without image compression, images data would become much larger and consequently retrieval of images will be slow, thus telemedicine would in many situations be impractical. But it is natural to raise the question of how much an image can be compressed and still preserve sufficient information for a given clinical application. Evaluation of the diagnostic quality of compressed medical image still remains an important issue. In this paper, three different medical image modalities have been compressed and decompressed using DWT for different compression ratios and evaluated using objective and subjective testing. The quality of the reconstructed images has been measured using objective measures such as MSE, MAE, SNR, and PSNR. Ten observers have been involved to carry out the subjective evaluation. Based on the quality of the reconstructed images, the PSNR obtained has been between 35JdB to 58.0dB for CT scan images, 38.6dB to 55.0dB for MRI and 34.5dB to 51.0dB for x-ray images. For radiology applications, the compression ratio of 30:1 is acceptable for CT images, and a compression ratio of 40:1 is acceptable for MRI, and compression ratio of 20:1 is acceptable for x-ray images.

Original languageEnglish
Title of host publicationProceedings - 2nd Asia International Conference on Modelling and Simulation, AMS 2008
Pages923-927
Number of pages5
DOIs
Publication statusPublished - 2008
Event2nd Asia International Conference on Modelling and Simulation, AMS 2008 - Kuala Lumpur
Duration: 13 May 200815 May 2008

Other

Other2nd Asia International Conference on Modelling and Simulation, AMS 2008
CityKuala Lumpur
Period13/5/0815/5/08

Fingerprint

Subjective Evaluation
Medical Image
Magnetic resonance imaging
Diagnostics
Subjective testing
X rays
Telemedicine
Radiology
Computerized tomography
Image compression
Compression
CT Image
Image Compression
Modality
Observer
Retrieval
Sufficient
Testing
Evaluation

Keywords

  • Discrete wavelet transform (DWT)
  • Medical image
  • Telemedicine
  • Teleradiology

ASJC Scopus subject areas

  • Computer Science Applications
  • Software
  • Modelling and Simulation

Cite this

Ghrare, S. E., Ali, M. A. M., Ismail, M., & Jumari, K. (2008). Diagnostic quality of compressed medical images: Objective and subjective evaluation. In Proceedings - 2nd Asia International Conference on Modelling and Simulation, AMS 2008 (pp. 923-927). [4530599] https://doi.org/10.1109/AMS.2008.10

Diagnostic quality of compressed medical images : Objective and subjective evaluation. / Ghrare, S. E.; Ali, M. A M; Ismail, Mahamod; Jumari, K.

Proceedings - 2nd Asia International Conference on Modelling and Simulation, AMS 2008. 2008. p. 923-927 4530599.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ghrare, SE, Ali, MAM, Ismail, M & Jumari, K 2008, Diagnostic quality of compressed medical images: Objective and subjective evaluation. in Proceedings - 2nd Asia International Conference on Modelling and Simulation, AMS 2008., 4530599, pp. 923-927, 2nd Asia International Conference on Modelling and Simulation, AMS 2008, Kuala Lumpur, 13/5/08. https://doi.org/10.1109/AMS.2008.10
Ghrare SE, Ali MAM, Ismail M, Jumari K. Diagnostic quality of compressed medical images: Objective and subjective evaluation. In Proceedings - 2nd Asia International Conference on Modelling and Simulation, AMS 2008. 2008. p. 923-927. 4530599 https://doi.org/10.1109/AMS.2008.10
Ghrare, S. E. ; Ali, M. A M ; Ismail, Mahamod ; Jumari, K. / Diagnostic quality of compressed medical images : Objective and subjective evaluation. Proceedings - 2nd Asia International Conference on Modelling and Simulation, AMS 2008. 2008. pp. 923-927
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