Hard copies for digital medical images: an overview

Hartwig R. Blume; Edward Muka

doi:10.1117/12.207579

27 April 1995 Hard copies for digital medical images: an overview

Hartwig R. Blume, Edward Muka

Proceedings Volume 2413, Color Hard Copy and Graphic Arts IV; (1995) https://doi.org/10.1117/12.207579
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

This paper is a condensed version of an invited overview on the technology of film hard-copies used in radiology. Because the overview was given to an essentially nonmedical audience, the reliance on film hard-copies in radiology is outlined in greater detail. The overview is concerned with laser image recorders generating monochrome prints on silver-halide films. The basic components of laser image recorders are sketched. The paper concentrates on the physical parameters - characteristic function, dynamic range, digitization resolution, modulation transfer function, and noise power spectrum - which define image quality and information transfer capability of the printed image. A preliminary approach is presented to compare the printed image quality with noise in the acquired image as well as with the noise of state-of- the-art cathode-ray-tube display systems. High-performance laser-image- recorder/silver-halide-film/light-box systems are well capable of reproducing acquired radiologic information. Most recently development was begun toward a display function standard for soft-copy display systems to facilitate similarity of image presentation between different soft-copy displays as well as between soft- and hard-copy displays. The standard display function is based on perceptional linearization. The standard is briefly reviewed to encourage the printer industry to adopt it, too.

Citation Download Citation

Hartwig R. Blume and Edward Muka "Hard copies for digital medical images: an overview", Proc. SPIE 2413, Color Hard Copy and Graphic Arts IV, (27 April 1995); https://doi.org/10.1117/12.207579

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