G'Day All,
I've been looking at the IMAQ Unwrap VI in the Vision toolkit, and I'd like to find out how the unwrapping routine actually works. I understand that the image data inside an annulus arc is converted to a rectangle, but how is the interpolation carried out? I can't find much info using the normal LabVIEW documentation channels, except for the following:
>
> Interpolation Type specifies the interpolation algorithm used in the unwrapping process.
> There are two options for the interpolation algorithm:
>
> 0: Zero Order is the nearest-neighbor interpolation.
> 1: Bi-Linear interpolation is the default value.
>
If anyone has any ideas, diagrams and/or equations on how this is acheived, I really like to hear from you!
cheers,
Christopher