Jump to content

Ordered subset expectation maximization

Add links
From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by 211.30.207.3 (talk) at 10:28, 6 June 2011 (→References: Not OSEM reference actually a ACOSEM reference should be on another page.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
This article is about an algorithm. For Israeli food corporation, see Osem (company).

In mathematical optimization, the ordered subset expectation maximization (OSEM) method is an iterative method that is used in computer tomography.

In applications in medical imaging, the OSEM method is used for positron emission tomography, for single photon emission computed tomography, and for X-ray computed tomography.

The OSEM method is related to the expectation maximization (EM) method of statistics. The OSEM method is also related to methods of filtered back projection.

References

  • Hudson, H.M., Larkin, R.S. (1994) "Accelerated image reconstruction using ordered subsets of projection data", IEEE Trans. Medical Imaging, 13 (4), 601–609 doi:10.1109/42.363108
Stub icon

This statistics-related article is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Ordered_subset_expectation_maximization&oldid=432827801"