A grid-line suppression technique based on the nonsubsampled contourlet transform in digital radiography

In radiography, an antiscatter grid is a well-known device for eliminating unexpected x-ray scatter. We investigate a new stationary grid artifact suppression method based on a nonsubsampled contourlet transform (NSCT) incorporated with Gaussian band-pass filtering. The proposed method has an advant...

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Hlavní autoři:	Namwoo Kim, Taeyoung Um, Hyun Tae Leem, Bon Tack Koo, Kyuseok Kim, Kyu Bom Kim
Médium:	Artigo
Jazyk:	Inglês
Vydáno:	Elsevier 2023-02-01
Edice:	Nuclear Engineering and Technology
Témata:	Grid-line suppression Nonsubsampled contourlet transform Gaussian notch filtering Spatial resolution Digital radiography
On-line přístup:	http://www.sciencedirect.com/science/article/pii/S1738573322005022
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