Multilevel domain decomposition method for fast reprojection of images

Eric Michielssen (Inventor), Yoram Bresler (Inventor), Amir Boag (Inventor)

Research output: Patent


The present method is a process for reprojecting, or computing tomographic projections of an image, based on multilevel image domain decomposition. The method includes decomposing an image into one or more sub-images, followed by reprojection of the sub-images into sinograms, appropriate scaling of the sinograms, and aggregation of the sub-image sinograms into a single sinogram of the entire image. The multilevel process attains image quality comparable to that of direct reprojection methods, while requiring much less computation, and therefore being much faster.
Original languageEnglish (US)
U.S. patent number6263096
StatePublished - Jul 17 2001

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