Measurement accuracy as a measure of image quality in compressed MR chest scans

S. M. Perlmutter, Chien Wen Tseng, P. C. Cosman, K. C.P. Li, R. A. Olshen, R. M. Gray

Research output: Contribution to journalConference articlepeer-review


We investigated the effects of lossy image compression on measurement accuracy in magnetic resonance images. Thirty chest scans were compressed to five different levels using predictive pruned tree-structured vector quantization (predictive PTSVQ). Three radiologists measured the diameters of the four principal blood vessels on each image. Errors were analyzed relative to both an independent standard and personal performance on uncompressed images. Data were compared with both t and Wilcoxon tests. We conclude that for the purpose of measuring blood vessels in the chest, there is no significant difference in measurement accuracy when images are compressed up to 16:1 with predictive PTSVQ.

Original languageEnglish (US)
Article number413437
Pages (from-to)861-865
Number of pages5
JournalProceedings - International Conference on Image Processing, ICIP
StatePublished - 1994
Externally publishedYes
EventProceedings of the 1994 1st IEEE International Conference on Image Processing. Part 3 (of 3) - Austin, TX, USA
Duration: Nov 13 1994Nov 16 1994

ASJC Scopus subject areas

  • Software
  • Computer Vision and Pattern Recognition
  • Signal Processing


Dive into the research topics of 'Measurement accuracy as a measure of image quality in compressed MR chest scans'. Together they form a unique fingerprint.

Cite this