S
[email protected]
- Jan 1, 1970
- 0
hi to all
Actually i m working on a project Shape measurement of 3-d
objects by applying Fourier Transform Profilometry Technique.
Now in this i do hav a a fringe pattern equation of the formT
g(x, y) = a(x ,y) + c(x ,y)exp[2ð fox] + c*(x, y)exp[-2ðifox]
where,
c(x, y) = ½ b(x ,y)exp[i Ö(x ,y)].
The FFT of the above equation with respect to x comes out to be
G(f, y) = A(f, y) + C(f-fo,y) + C*(f+fo, y)
NOW ACTUALLY I HAV TO FILTER OUT the unwanted variation a(x, y) for
which i need to design a bandpassfilter usiing matlab. now i do
require help for how to do this.
regards
Saurabh
Actually i m working on a project Shape measurement of 3-d
objects by applying Fourier Transform Profilometry Technique.
Now in this i do hav a a fringe pattern equation of the formT
g(x, y) = a(x ,y) + c(x ,y)exp[2ð fox] + c*(x, y)exp[-2ðifox]
where,
c(x, y) = ½ b(x ,y)exp[i Ö(x ,y)].
The FFT of the above equation with respect to x comes out to be
G(f, y) = A(f, y) + C(f-fo,y) + C*(f+fo, y)
NOW ACTUALLY I HAV TO FILTER OUT the unwanted variation a(x, y) for
which i need to design a bandpassfilter usiing matlab. now i do
require help for how to do this.
regards
Saurabh
