Image analysis – Applications – Biomedical applications
Reexamination Certificate
2004-08-06
2009-11-24
Werner, Brian P (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S131000, C378S004000, C378S021000, C600S407000
Reexamination Certificate
active
07623691
ABSTRACT:
A method of removing an imaging artifact in a medical image, including obtaining a first plurality of images, the first plurality of images collectively defining a first image volume; filtering the first plurality of images to create a second plurality of images, each image in the second plurality of images comprising an average of at least two images in the first plurality of images; selecting a first image from the first plurality of images; adding a lost noise image to a second image in the second plurality of images to create a noise restored image, the second image in the second plurality of images corresponding to the first image in the first plurality of images; determining a gradient image based on pixel values in the second plurality of images, the gradient image comprising a gradient value at each pixel location in the second image; and combining, based on the determined gradient image, the first image and the noise restored image to obtain a corrected image that does not contain the imaging artifact.
REFERENCES:
patent: 5301108 (1994-04-01), Hsieh
patent: 5377250 (1994-12-01), Hu
patent: 5473655 (1995-12-01), Hu
patent: 5561695 (1996-10-01), Hu
patent: 5602934 (1997-02-01), Li et al.
patent: 5845003 (1998-12-01), Hu et al.
patent: 6466700 (2002-10-01), Makram-Ebeid
patent: 6778692 (2004-08-01), Yazici
patent: 6813374 (2004-11-01), Karimi et al.
patent: 6885764 (2005-04-01), Wang et al.
Heucsher-D-J, Reduced partial volume artifacts using spiral CT and integrating interpolator, Feb.1999,Datastar,Medical physics vol. 26 pp. 276-286 (Abstract only) # 0006165752.
Zonneveld—F-W, The relationship between slice thickness and Image quality in CT, 1984, Medicamundi, pp. 104-117 (abstract only), # 0002552990.
Silver-M, Windmill artfact in Multi slice helical CT, 2003, Medical imaging, pp. 1918-1927 (abstract only), # 0008033671.
Heuscher-D-J, Reduced partial volume artifacts using spiral CT and integrating interpolator,Feb. 1999,Datastar,Medical physics vol. 26 pp. 276-286 (Abstract only) # 0006165752.
Zonneveld F.W, The relationship between slice thickness and image quality in CT, 1984, Mediacmundi, pp. 104-117 (Abstract only), # 0002552990.
Silver-M, Windmill artifacts in multi slice CT, 2003,Medical imaging, pp. 1918-1927 (Abstract only), # 0008033671.
Hein Ilmar A.
Silver Michael D.
Taguchi Katsuyuki
Kabushiki Kaisha Toshiba
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Patel Jayesh
Toshiba Medical Systems Corporation
Werner Brian P
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