Abstract
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 language | English (US) |
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| U.S. patent number | 6263096 |
| Filing date | 10/15/99 |
| State | Published - Jul 17 2001 |