ART meaning in Maths ?
Answer: What is Algebraic Reconstruction Technique mean?
The algebraic reconstruction technique (ART) is an iterative reconstruction technique used in computed tomography. It reconstructs an image from a series of angular projections (a sinogram). Gordon, Bender and Herman first showed its use in image reconstruction; whereas the method is known as Kaczmarz method in numerical linear algebra.
An advantage of ART over other reconstruction methods (such as filtered backprojection) is that it is relatively easy to incorporate prior knowledge into the reconstruction process.
ART can be considered as an iterative solver of a system of linear equations A x = b {\displaystyle Ax=b} , where:
A {\displaystyle A} is a sparse m × n {\displaystyle m\times n} matrix whose values represent the relative contribution of each output pixel to different points in the sinogram ( m {\displaystyle m} being the number of individual values in the sinogram, and n {\displaystyle n} being the number of output pixels); x {\displaystyle x} represents the pixels in the generated (output) image, arranged as a vector, and: b {\displaystyle b} is a vector representing the sinogram. Each projection (row) in the sinogram is made up of a number of discrete values, arranged along the transverse axis. b {\displaystyle b} is made up of all of these values, from each of the individual projections.Given a real or complex matrix A {\displaystyle A} and a real or complex vector b {\displaystyle b} , respectively, the method computes an approximation of the solution of the linear systems of equations reference
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