Image reconstruction from projections download

Image reconstruction from projections

This article covers the problem of reconstruction of structures from data collected based on transmitted or emitted radiation. The problem occurs in a wide range. Main article: Magnetic resonance imaging. In MRI, energy from an oscillating magnetic field is temporarily. These computer methods are designed to solve the inverse problem known as " image reconstruction from projections". This paper uses the various models of.

problem known as “image reconstruction from projections.” The major subfields of ECT are positron emission to- mography (PET) and single-photon emission. 5. helmikuu The image is not seen by the scanner, but it's projection profiles are Figure 1: Image reconstruction from projections (negative images). 2 PET, SPECT, CT. 3 Basic Idea: Projections. 4 Analytic Image Reconstruction. Backprojection. Filtered Backprojection. 5 Iterative Image Reconstruction.

Image Reconstruction from projection is a special class of image restoration problem. Where a 2D object is reconstructed from several 1D projections. The set of projections of a single slice is called sinogram. 2nd step = image recontruction from projections. There are 2 groups of reconstruction methods. Image reconstruction from projections suffers from an inherent difficulty: there are different images that have identical projections in any finite.