MLEM without a Simple Image

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  • Thread starter a.glick
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Summary:

I am studying 4pi kinematic imaging with a neutron scatter camera and want to perform MLEM given det1, det2, and theta values for my cones.

Main Question or Discussion Point

I have a response matrix for my 4pi imager to perform MLEM that has dimensions:

(16 x 16 x 18) x (72 x 36) which is Observation Bins x Source Bins.

I'm told that I can use MLEM to create an image by feeding in a 1x3 vector of

det1, det2, theta

into the MLEM algorithm. Where det1, det2 are the 2 detectors a particle interacts with in the kinematic imaging and theta is the opening angle of a cone of probability for the particle's incident direction. However every paper I've read says I need a vectorized image (or simple backprojection) that has a 1 x (72 x 36) dimensional form. How can I do the MLEM iteration in my case?
 

Answers and Replies

  • #2
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You'll have a much better chance of getting answers to your questions if you provide more information.
  • What is MLEM? We shouldn't need to do a search to find what this algorithm is. A link to a description of this algorithm would be helpful.
  • What is 4pi kinematic imaging?
 
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