Contrast mapping and evaluation for electronic X-ray images on CRT display monitor

IEEE Transactions on Medical Imaging
J SuzukiY Ando

Abstract

Simple chest X rays on film are the most common type of image in medical diagnosis. However, amongst the various types of medical X-ray images, they require the highest level of display quality due to the fact that the body structures they capture on film have varying degrees of permeability to X rays. Conventional high-definition digital display technology has not always been able to match the quality of such film images. This has been a major impediment against progress toward the complete digitization of simple chest X rays. The intent of this paper is to examine that, when applied to medical diagnosis of chest X rays, super-high-definition (SHD) images (digital images with resolution exceeding that of HDTV) are capable of producing a level of quality of diagnostic accuracy on a par with conventional film images. We will start out by seeking out the overall transmission characteristics of a system that uses digital radiography and a film digitizer to digitize images. We will then derive gray-scale transform characteristics based on the luminance linear method for approximating, as closely as possible on a CRT, film images on a light box that have wide dynamic range and high luminance. Finally, we will present the results of ...Continue Reading

References

Nov 1, 1991·Journal of Digital Imaging·G R KuduvalliJ E Desautels
May 1, 1983·Investigative Radiology·J W KeyesW L Rogers
Jan 1, 1987·IEEE Transactions on Medical Imaging·R H Sherrier, G A Johnson

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Citations

Mar 29, 2001·Computer Methods and Programs in Biomedicine·H LamminenH Uusitalo
Mar 15, 2000·Radiographics : a Review Publication of the Radiological Society of North America, Inc·J C ObersonL Bovisi
Jan 29, 2002·IEEE Transactions on Medical Imaging·B van GinnekenM A Viergever

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