Global Information Lookup Global Information

Radon transform information


Radon transform. Maps f on the (x, y)-domain to Rf on the (α, s)-domain.

In mathematics, the Radon transform is the integral transform which takes a function f defined on the plane to a function Rf defined on the (two-dimensional) space of lines in the plane, whose value at a particular line is equal to the line integral of the function over that line. The transform was introduced in 1917 by Johann Radon,[1] who also provided a formula for the inverse transform. Radon further included formulas for the transform in three dimensions, in which the integral is taken over planes (integrating over lines is known as the X-ray transform). It was later generalized to higher-dimensional Euclidean spaces and more broadly in the context of integral geometry. The complex analogue of the Radon transform is known as the Penrose transform. The Radon transform is widely applicable to tomography, the creation of an image from the projection data associated with cross-sectional scans of an object.

  1. ^ Radon 1917.

and 26 Related for: Radon transform information

Request time (Page generated in 0.8395 seconds.)

Radon transform

Last Update:

In mathematics, the Radon transform is the integral transform which takes a function f defined on the plane to a function Rf defined on the (two-dimensional)...

Word Count : 3491

Hough transform

Last Update:

Hough transform conceptually very close to the two-dimensional Radon transform. In fact, the Hough transform is mathematically equivalent to the Radon transform...

Word Count : 4768

Johann Radon

Last Update:

so-called Radon–Riesz property. Radon spaces Radonifying function Brigitte Bukovics: Biography of Johann Radon, in: 75 Years of Radon Transform, S. Gindikin...

Word Count : 574

Abel transform

Last Update:

dimensions. Abel transform can be viewed as the Radon transform of an isotropic 2D function f(r). As f(r) is isotropic, its Radon transform is the same at...

Word Count : 1591

Tomographic reconstruction

Last Update:

obtained in non-invasive manner. Recent developments have seen the Radon transform and its inverse used for tasks related to realistic object insertion...

Word Count : 2931

List of transforms

Last Update:

Laplace–Stieltjes transform Legendre transform Linear canonical transform Mellin transform Inverse Mellin transform Poisson–Mellin–Newton cycle N-transform Radon transform...

Word Count : 267

Funk transform

Last Update:

geometry, the Funk transform (also known as Minkowski–Funk transform, Funk–Radon transform or spherical Radon transform) is an integral transform defined by integrating...

Word Count : 1182

Mojette transform

Last Update:

The Mojette transform is an application of discrete geometry. More specifically, it is a discrete and exact version of the Radon transform, thus a projection...

Word Count : 3874

Sinogram

Last Update:

(Hanzi), especially when used in a different language Radon transform, a type of integral transform in mathematics A visual representation of the raw data...

Word Count : 80

History of computed tomography

Last Update:

tomography dates back to at least 1917 with the mathematical theory of the Radon transform In the early 1900s an Italian radiologist named Alessandro Vallebona...

Word Count : 2555

Integral transform

Last Update:

In mathematics, an integral transform is a type of transform that maps a function from its original function space into another function space via integration...

Word Count : 1278

Fractional Fourier transform

Last Update:

transform. These have been generalized into a supersymmetric FRFT, and a supersymmetric Radon transform. There is also a fractional Radon transform,...

Word Count : 3733

Integral geometry

Last Update:

space. Such transformations often take the form of integral transforms such as the Radon transform and its generalizations. Integral geometry as such first...

Word Count : 582

Operation of computed tomography

Last Update:

(s,θ) obtained by performing radon transform to μ(x, y), and (2)μ(x, y) is restored by performing inverse radon transform to measurement results. Consider...

Word Count : 3035

Penrose transform

Last Update:

theoretical physics, the Penrose transform, introduced by Roger Penrose (1967, 1968, 1969), is a complex analogue of the Radon transform that relates massless fields...

Word Count : 974

Fritz John

Last Update:

differential equations and ill-posed problems. His early work was on the Radon transform and he is remembered for John's equation. He was a 1984 MacArthur Fellow...

Word Count : 851

Periodogram

Last Update:

Matched filter Filtered Backprojection (Radon transform) Welch's method Bartlett's method Discrete-time Fourier transform Least-squares spectral analysis, for...

Word Count : 1250

Tomosynthesis

Last Update:

CT reconstructions, in that they are based on performing an inverse Radon transform. Due to partial data sampling with very few projections, approximation...

Word Count : 1379

Dirac delta function

Last Update:

equation). This is essentially a form of the inversion formula for the Radon transform because it recovers the value of φ(x) from its integrals over hyperplanes...

Word Count : 13792

List of things named after Roger Penrose

Last Update:

singularity theorem in general relativity Penrose transform, a complex analogue of the Radon transform in theoretical physics Penrose–Ward correspondence...

Word Count : 206

Tomography

Last Update:

Johann Radon Medical imaging MRI compared with CT Network tomography Nonogram, a type of puzzle based on a discrete model of tomography Radon transform Tomographic...

Word Count : 1691

CT scan

Last Update:

tomography goes back to at least 1917 with the mathematical theory of the Radon transform. In October 1963, William H. Oldendorf received a U.S. patent for a...

Word Count : 15952

List of integration and measure theory topics

Last Update:

series See also list of transforms, list of Fourier-related transforms Kernel (integral operator) Convolution Radon transform Buffon's needle Hadwiger's...

Word Count : 221

Generalised Hough transform

Last Update:

transform Randomized Hough transform Radon Transform Template matching Outline of object recognition D.H. Ballard, "Generalizing the Hough Transform to...

Word Count : 2344

System of differential equations

Last Update:

Encyclopedia of Mathematics". L. Ehrenpreis, The Universality of the Radon Transform, Oxford Univ. Press, 2003. Gromov, M. (1986), Partial differential...

Word Count : 1135

Inverse problem

Last Update:

Radon transform. Although from a theoretical point of view many linear inverse problems are well understood, problems involving the Radon transform and...

Word Count : 8839

PDF Search Engine © AllGlobal.net