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This post was updated on .
Hello,
I am rendering x-ray images together and have a query regarding the algorithms / interpolation methods used. There are two 3D rendering options, which give slightly different results:
(1) stacks / 3D project (tick interpolation box) / open projection in 3D viewer
(2) using VolumeJ Plugin: open image stack -> plugins / volume reconstructor / open Hypervolume in 3D viewer.
Can anyone advise me what interpolation methods or algorithms are used in the above methods, or where I might find information on the above? I basically need to understand why the methods are different and whether the algorithms have any influence on the accuracy of the final 3D rendered image.
...OK, so I should have mentioned here that I read all the (readily) available documentation and source code before putting up the post. I haven't had much luck when searching through academic papers for further detail either.
Specifically I know that (1) above projects volume according to the Nearest Point, Brightest Point or Mean Value option selected, and then interpolates if the box is ticked. But that type of interpolation is used? Bilinear? Is the Radon transform used, and how is it applied? Likewise, the code for option (2) references trilinear interpolation but how is this applied and what algorithms are used in conjunction with the interpolation method. I'm not a programmer, and can't find it easily in the code.
Thanks in advance,
Jen
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