ArticleDento maxillo facial radiology2025
Analysis of noise characteristics in intraoral X-ray sensors using the Noise-Power Spectrum and non-parametric metrics from diagnostic imaging.
Article in Dento maxillo facial radiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Digital X-ray sensors have significantly changed dental radiography, enabling faster image acquisition and reducing radiation doses for patients. Despite the advancements in technology, noise in X-ray imaging remains a challenge. In this study, noise was examined using the Noise-Power Spectrum (NPS) and a non-parametric method. Blank images were taken under different exposure times and voltage settings. The analyses show that noise decreases with longer exposure times. Among the examined sensors, 2 showed distinct NPS peaks, and 1 exhibited no relationship between exposure time and noise levels. These results are discussed on terms of specific sensor structures, artefacts and/or unaccessible post-processing algorithms.
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