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Image Analysis and Modeling in Ophthalmology
book

Image Analysis and Modeling in Ophthalmology

by Eddie K. Ng, U. Rajendra Acharya, Jasjit S. Suri, Aurelio Campilho
February 2014
Intermediate to advanced content levelIntermediate to advanced
409 pages
16h 38m
English
CRC Press
Content preview from Image Analysis and Modeling in Ophthalmology
250 Image Analysis and Modeling in Ophthalmology
two-dimensional images into a line parameter domain. Each line in the original image
will yield a peak in the transform domain; the position of this peak indicates the corre-
sponding line parameters [21]. Hence, lines within images are transformed into points in
the Radon domain.
Mathematically, a line can be expressed as: ρ = x × cos θ + y × sin θ, where θ is a line
angle and ρ is the offset from the origin of the coordinate system.
Given a continuous function g(x, y), the Radon transform is dened as:
Rg gs
ss
ρθ ρθ θρ
θθ
α
α
,cos sin, sincos
()
=−+
+
d (14.1)
Equation 14.1 describes an integral f ...
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Publisher Resources

ISBN: 9781466559387