Spatial noise of high-resolution liquid-crystal displays for medical imaging: quantitative analysis, estimation, and compensation

Jiahua Fan; William J. Dallas; Hans Roehrig; Elizabeth A. Krupinski; Kunal Gandhi; Malur K. Sundareshan

doi:10.1117/12.536026

5 May 2004 Spatial noise of high-resolution liquid-crystal displays for medical imaging: quantitative analysis, estimation, and compensation

Jiahua Fan, William J. Dallas, Hans Roehrig, Elizabeth A. Krupinski, Kunal Gandhi, Malur K. Sundareshan

Author Affiliations +

Proceedings Volume 5367, Medical Imaging 2004: Visualization, Image-Guided Procedures, and Display; (2004) https://doi.org/10.1117/12.536026
Event: Medical Imaging 2004, 2004, San Diego, California, United States

Abstract

Recent developments in Liquid Crystal Display (LCD) technology suggest that they will replace the Cathode Ray Tube (CRT) as the most common softcopy display in the medical arena. But LCDs are far from ideal for medical imaging. One of the problems they possess is spatial noise. This paper presents some work we have conducted recently on spatial noise of high resolution LCDs. The purpose of this work is to explore the properties of spatial noise and the method to reduce them. A high quality CCD camera is used for physical evaluation. Spatial noise properties are analyzed and estimated from the camera images via signal modeling and processing. Noise compensation algorithm based on error diffusion is developed to process images before they are displayed. Some initial results shown in this paper suggest that LCD spatial noise can be eliminated via appropriate processing.

Citation Download Citation

Jiahua Fan, William J. Dallas, Hans Roehrig, Elizabeth A. Krupinski, Kunal Gandhi, and Malur K. Sundareshan "Spatial noise of high-resolution liquid-crystal displays for medical imaging: quantitative analysis, estimation, and compensation", Proc. SPIE 5367, Medical Imaging 2004: Visualization, Image-Guided Procedures, and Display, (5 May 2004); https://doi.org/10.1117/12.536026

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