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dc.contributor.authorShaw, A
dc.contributor.authorMoores, B M
dc.date.accessioned2010-12-02T17:06:43Z
dc.date.available2010-12-02T17:06:43Z
dc.date.issued1985-03
dc.identifier.citationNoise transfer in screen-film subtraction radiography. 1985, 30 (3):229-38 Phys Med Biolen
dc.identifier.issn0031-9155
dc.identifier.pmid3885267
dc.identifier.urihttp://hdl.handle.net/10541/116992
dc.description.abstractThe transfer of noise through the stages of a screen-film subtraction process was investigated. In particular the effect of measuring aperture size and film density on the measured noise granularity was studied. The relative contributions of quantum noise and film grain noise were found to depend on both aperture and density. Noise measurements are presented for a medium speed screen-film combination and also for a low noise alpha 16-Kodak Industrex C system. The effect of grain mottle and film blur on noise transfer through the multiple print process employed in subtraction radiography is demonstrated.
dc.language.isoenen
dc.subject.meshHumans
dc.subject.meshInformation Theory
dc.subject.meshRadiographic Image Enhancement
dc.subject.meshSubtraction Technique
dc.subject.meshX-Ray Intensifying Screens
dc.titleNoise transfer in screen-film subtraction radiography.en
dc.typeArticleen
dc.contributor.departmentRegional Department of Medical Physics and Bioengineering, CHristie Hospital and Holt Radium Institute, Withington, Manchester M20 9BX, Englanden
dc.identifier.journalPhysics in Medicine and Biologyen
html.description.abstractThe transfer of noise through the stages of a screen-film subtraction process was investigated. In particular the effect of measuring aperture size and film density on the measured noise granularity was studied. The relative contributions of quantum noise and film grain noise were found to depend on both aperture and density. Noise measurements are presented for a medium speed screen-film combination and also for a low noise alpha 16-Kodak Industrex C system. The effect of grain mottle and film blur on noise transfer through the multiple print process employed in subtraction radiography is demonstrated.


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