Scatter-glare correction using a convolution algorithm with variable weighting.

S Naimuddin; B Hasegawa; C A Mistretta

doi:10.1118/1.596088

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Scatter-glare correction using a convolution algorithm with variable weighting.

S Naimuddin·B Hasegawa·C A Mistretta

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Abstract

Several investigators have approximated the scatter component of digital radiographic images by applying a constant weighting factor to a convolved version of the detected image. The scatter approximation is then subtracted from the detected image. When a constant weighting factor is used, the scatter in areas of low transmission is underestimated. We have extended this technique by allowing for a spatially variable weighting factor based on the local image intensity. This technique improves the scatter estimate and should provide better results for general videodensitometric applications.

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Algorithms Humans Models, Theoretical Radiography Radiography, Thoracic Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.

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S Naimuddin, B Hasegawa, C A Mistretta. Scatter-glare correction using a convolution algorithm with variable weighting.. https://doi.org/10.1118/1.596088

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