6 March 2012 NPS assessment of color medical displays using a monochromatic CCD camera
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Abstract
This paper presents an approach to Noise Power Spectrum (NPS) assessment of color medical displays without using an expensive imaging colorimeter. The R, G and B color uniform patterns were shown on the display under study and the images were taken using a high resolution monochromatic camera. A colorimeter was used to calibrate the camera images. Synthetic intensity images were formed by the weighted sum of the R, G, B and the dark screen images. Finally the NPS analysis was conducted on the synthetic images. The proposed method replaces an expensive imaging colorimeter for NPS evaluation, which also suggests a potential solution for routine color medical display QA/QC in the clinical area, especially when imaging of display devices is desired.
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Hans Roehrig, Hans Roehrig, Xiliang Gu, Xiliang Gu, Jiahua Fan, Jiahua Fan, "NPS assessment of color medical displays using a monochromatic CCD camera", Proc. SPIE 8318, Medical Imaging 2012: Image Perception, Observer Performance, and Technology Assessment, 83181Q (6 March 2012); doi: 10.1117/12.913749; https://doi.org/10.1117/12.913749
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