Signal-adaptive noise reduction in digital radiographic images

Details Signal-adaptive noise reduction in digital radiographic images Signal-adaptive noise reduction in digital radiographic images

2007-08-07

2007-08-07

Mancuso, Joseph (Department: 2624)

Image analysis

Applications

Biomedical applications

C382S307000, C382S162000, C382S254000

Reexamination Certificate

active

10731762

ABSTRACT:
Signal-adaptive noise reduction in digital radiographic images is described herein. Embodiments comprise methods for signal-adaptive noise reduction in digital radiographic images, comprising the steps of: obtaining raw x-ray image data of an imaged object; processing the raw x-ray image data to create processed x-ray image data; inputting at least one of the raw x-ray image data and the processed x-ray image data to an image processor; developing at least one of a first intensity modulation image from the raw x-ray image data and a second intensity modulation image from the processed x-ray image data; deriving a structure-dependent noise filtered image using the processed x-ray image data; performing signal attenuation-dependent blending; and creating a noise-reduced digital x-ray image therefrom. Computer-readable mediums encoded with programming for facilitating signal-adaptive noise reduction in digital radiographic images, and digital radiographic imaging systems comprising such programming, are also described.

REFERENCES:
patent: 6466689 (2002-10-01), MacMahon
patent: 6493416 (2002-12-01), Hsieh
patent: 6763129 (2004-07-01), Honda et al.
patent: 7068826 (2006-06-01), Jabri et al.

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