Equations - PowerPoint PPT Presentation

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Equations

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Consider a 2-dimensional example of an emission imaging system. O(x,y) is the object function, describing the source distribution. ... Radon. transform. 2D. FT. 1D. FT ... – PowerPoint PPT presentation

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Title: Equations


1
Equations
2
More Organized Proof of The Central Slice Theorem
3
More Organized Proof of The Central Slice Theorem
4
More Organized Proof of The Central Slice Theorem
5
The Central Slice Theorem
Consider a 2-dimensional example of an emission
imaging system. O(x,y) is the object function,
describing the source distribution. The
projection data, is the line integral along the
projection direction.
The Central Slice Theorem can be seen as a
consequence of the separability of a 2-D Fourier
Transform.
The 1-D Fourier Transform of the projection is,
6
The Central Slice Theorem
The one-dimensional Fourier transformation of a
projection obtained at an angle J, is the same as
the radical slice taken through the
two-dimensional Fourier domain of the object at
the same angle.
Radon transform
2D FT
1D FT
?
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