Posted by
Dr. Michael DOUBE on
URL: http://imagej.273.s1.nabble.com/rendering-a-3D-image-from-side-views-only-tp5022558p5022568.html
Hi Bill,
What you want is photogrammetry, which is the process of generating surface models (2.5D if you like) from a series of photographs. It's a popular technique in museum digital curation because it's no destructive and the hardware requirements are minimal. In my current department, a whole Omura's whale skeleton was digitised with just a digital SLR camera and some software (I don't know which one, sorry). You are likely to need many more photographs than you think, because you have to gather photons from every surface, otherwise surface regions will be missing from the final mesh. There are a few libraries out there that might be helpful for you - not sure if any are implemented in ImageJ.
As others have pointed out, tomography requires images projected through the complete thickness of the sample for reconstruction at many angles - usually 1 - 3 thousand per full rotation, but you can get away with fewer with special reconstruction algorithms. There is a group in the UK, at the Hounsfield lab, doing X-ray microtomogrpahy of root systems. Would be worth checking them out.
Hope it helps,
Michael
On 22/10/2019 04:38, BananaBoy wrote:
Hi, I'm pretty new to imageJ and image analysis in general but I have a
question that I cannot seem to find a clear answer to which is the
following:
I would like to construct a 3D model of a plant's root system by taking side
views (and potentially a top view) images. For obvious reasons, I cannot
create a stack of slices along the vertical axis. Is this possible?
For example, I could create a setup where the plant is at a fixed position
from the camera (with naked and clean roots hanging in the air). I could
then rotate the plant 360 degrees in increments of 10 degrees, so 35
pictures in total.
Is ImageJ capable of rendering a 3D model of this root system?
Thank you.
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[Jockey Club College of Veterinary Medicine and Life Sciences - City University of Hong Kong]
Dr. Michael DOUBE
BVSc, BPhil, PhD, PGCert Vet Ed, MRCVS, FRMS
Associate Professor
Department of Infectious Diseases
and Public Health
5/F, Block 2, To Yuen Building
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