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Reconstruction of Image from Simple Back Projection

1.0 | 2 ratings Rate this file 7 Downloads (last 30 days) File Size: 2.75 KB File ID: #42266 Version: 1.1
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Reconstruction of Image from Simple Back Projection



17 Jun 2013 (Updated )

Reconstruction of Image from projections

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A basic problem in imaging with x-rays (or other penetrating radiation) is that a two-dimensional image is obtained of a three-dimensional object. This means that structures can overlap in the final image, even though they are completely separate in the object. This is particularly troublesome in medical diagnosis where there are many anatomic structures that can interfere with what the physician is trying to see. During the 1930's, this problem was attacked by moving the x-ray source and detector in a coordinated motion during image formation. From the geometry of this motion, a single plane within the patient remains in focus, while structures outside this plane become blurred. This is analogous to a camera being focused on an object at 5 feet, while objects at a distance of 1 and 50 feet are blurry. These related techniques based on motion blurring are now collectively called classical tomography. The word tomography means "a picture of a plane."

Required Products Image Processing Toolbox
MATLAB release MATLAB 7.8 (R2009a)
Other requirements None
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Comments and Ratings (2)
27 Oct 2013 Boneng

Boneng (view profile)

18 Jun 2013 Muhammad Ali Qadar

please provide inputsbp()

19 Jun 2013 1.1

Two functions inputsbp() and choosesbp() are added

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