Image Reconstruction

[lojius]

I'm trying to reconstruct a sinogram image to 2-D sclice CT image. Don't known how to implemented this in Labview

Detail info. of the sinogram data : Array size 767 X 360(Projection) 

I'm using LV 8.6 & IMAQ.

Can anyone give suggestion?

Thanks

Lojius Lombigit

Malaysia

email: lojius@nuclearmalaysia.gov.my

[muks]

Can you explain it with more details?

[lojius]

I'm using linear array Detector with fan beam Xray source, data capture via framegrabber card and the raw data (I16) 2-D array of 767 (ray sum) X 360 (Degree of projections).

I manage to display the sinogram with by using IMAQ array to image.vi.

Now i'm trying to reconctruct tomography image from the sinogram. Do some research and find that method called filtered backprojection are commonly used for image reconstruction.

Can this method implemented in Labvie?

[muks]

Please see this

[muks]

Also download this and check whether this will be helpful

[lojius]

Thanks for the suggestion. Unfotunately our institute did not have access to the journal

[Andrey_Dmitriev]

Hi,

Its not extremely complicated. You should propagate each row to the whole image, then rotate it and continuously add results:

But normally you will get some reconstruction artifacts, and avoiding them may be tricky...

Demo project in attachment. 

Good luck!

Andrey.

[lojius · Accepted solution]

Thanks a lot. This is very helpfull indeed.