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Proceedings Paper

Optimal bit allocation for full-frame DCT coding schemes: application to cardiac angiography
Author(s): Patricia V. Beretta; Remy Prost; Michel Amiel
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Paper Abstract

This paper reports on a lossy compression method applicable to cardiac angiography. Full frame DCT coding has been investigated, using an optimized bit allocation and quantization scheme. We compared it to the standard JPEG method in the environment of a cardiac angiography system with dedicated visualization devices and post-processing. At a compression ratio 12:1, the image quality appeared to be better than the JPEG base-line compression. Owing to the principle of our method, no blocking effect is induced, whereas this is a critical drawback of the JPEG algorithm. Furthermore, the sharpness of fine details is better preserved.

Paper Details

Date Published: 1 May 1994
PDF: 11 pages
Proc. SPIE 2164, Medical Imaging 1994: Image Capture, Formatting, and Display, (1 May 1994); doi: 10.1117/12.174011
Show Author Affiliations
Patricia V. Beretta, INSA (France)
Remy Prost, INSA (France)
Michel Amiel, Cardiological Hospital Lyon (France)

Published in SPIE Proceedings Vol. 2164:
Medical Imaging 1994: Image Capture, Formatting, and Display
Yongmin Kim, Editor(s)

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