About: CT Artefact Reduction by Signal to Thickness Calibration Function Shaping

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	It is frequently a task to calibrate the radiogram intensity in reference to the object thickness/density value. This knowledge is important when the radiographic densitometry, thickness measurements or precise computed tomography are required. Often aluminum is used as calibrating material and processed radiogram of the real object is evaluated as aluminum equivalent. This approach is qualitatively convenient for transmission radiograms; however, certain secondary artifacts remain in CT reconstructions. Fortunately the calibration function can be shaped using only one or two known thickness values of the object investigated. The shaped calibration function obtained produces the right signal to thickness relationship and CT quality is improved when it is applied. It is frequently a task to calibrate the radiogram intensity in reference to the object thickness/density value. This knowledge is important when the radiographic densitometry, thickness measurements or precise computed tomography are required. Often aluminum is used as calibrating material and processed radiogram of the real object is evaluated as aluminum equivalent. This approach is qualitatively convenient for transmission radiograms; however, certain secondary artifacts remain in CT reconstructions. Fortunately the calibration function can be shaped using only one or two known thickness values of the object investigated. The shaped calibration function obtained produces the right signal to thickness relationship and CT quality is improved when it is applied. (en)
Title	CT Artefact Reduction by Signal to Thickness Calibration Function Shaping CT Artefact Reduction by Signal to Thickness Calibration Function Shaping (en)
skos:prefLabel	CT Artefact Reduction by Signal to Thickness Calibration Function Shaping CT Artefact Reduction by Signal to Thickness Calibration Function Shaping (en)
skos:notation	RIV/68378297:_____/11:00365109!RIV12-AV0-68378297
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA103/09/2101), P(LA08015), Z(AV0Z20710524)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Vavřík, Daniel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav teoretické a aplikované mechaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	192413
http://linked.open...ai/riv/idVysledku	RIV/68378297:_____/11:00365109
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	flat field correction; digital radiography; signal to thickness function; beam hardnening correction (en)
http://linked.open.../riv/klicoveSlovo	beam hardnening correction digital radiography flat field correction signal to thickness function
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[A040BE444B02]
http://linked.open...i/riv/nazevZdroje	Nuclear Instruments & Methods in Physics Research Section A
http://linked.open...in/vavai/riv/obor	JB
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Evaluation of the energy responsible for fracture advancing Collaboration of the Czech Republic with CERN
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	633
http://linked.open...iv/tvurceVysledku	Vavřík, Daniel
http://linked.open...ain/vavai/riv/wos	000292782400054
http://linked.open...n/vavai/riv/zamer	Time dependent response of materials, systems and environments on natural and human actions
issn	0168-9002
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.nima.2010.06.160

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