Assessment of image compression quality by means of quantitative coronary angiography

Cornelis H. Slump; Paul Hagendoorn; Remke Rutgers; Frederik J. de Bruijn; Corstiaan J. Storm; Ad C. van Benthem

doi:10.1117/12.273953

7 May 1997 Assessment of image compression quality by means of quantitative coronary angiography

Cornelis H. Slump, Paul Hagendoorn, Remke Rutgers, Frederik J. de Bruijn, Corstiaan J. Storm, Ad C. van Benthem

Proceedings Volume 3031, Medical Imaging 1997: Image Display; (1997) https://doi.org/10.1117/12.273953
Event: Medical Imaging 1997, 1997, Newport Beach, CA, United States

Abstract

Many techniques for image compression do exist and are well described in the literature. Lossless image compression is for digital coronary angiograms limited to compression ratios in the order of 3-4. THe purpose of this work is about the assessment of the diagnostic image quality of lossy compressed coronary angiograms by means of quantitative coronary angiography (QCA). We measure in the compressed images the diameter of the vessel at several places as a function of the compression ratio and compare this with the original image. The set of representative images is compressed with the ratios 4, 8, 12 and 16. The selected compression algorithms are JPEG, lapped orthogonal transform (LOT) and modified fast lapped transform (MFLT). The obtained quantitative diameter values start to deviate at image representations down at 0.5 bit per pixel with the JPEG giving the greatest differences. The results of LOT and MFLT are performing better with respect to the criterion vessel size of diagnostic relevant vessels. At the greater compression ratios some blocking artifacts or ringing starts to become visible. Somewhat to our surprise in our comparison study we have found that there are no great deviations in measured vessel diameter for the compression ratios 4, 8, 12 and 16. At compression ratio 16 JPEG has the largest deviation. According to the changes in the quantitative data higher compression ratios are certainly feasible.

Citation Download Citation

Cornelis H. Slump, Paul Hagendoorn, Remke Rutgers, Frederik J. de Bruijn, Corstiaan J. Storm, and Ad C. van Benthem "Assessment of image compression quality by means of quantitative coronary angiography", Proc. SPIE 3031, Medical Imaging 1997: Image Display, (7 May 1997); https://doi.org/10.1117/12.273953

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available