About this document Walk Through of the Conclusion

 

Glossary

 

Interfile

File format used by R to be most compatible with current camera file formats. Version of keys currently used is 3.3.

Sinogram

Set of binned data representing one slice through all the projections. Within this document, Sinogram is also used to refer to the set of sinograms of related slices.

Lambda

Grid of pixels representing isotope concentration throughout a slice of the body. Within this document, Lambda is also used to refer to the set of lambdas of related slices.

Reconstruction

Lambda produced by reconstructing a sinogram.

EM (Expectation Maximisation)

Algorithm for reconstructing sinograms.

OSEM

A more general form of EM whereby subsets of the sinogram are used in turn to reconstruct the image.

basename

Directory and name of a file without its extension. e.g. File name is /fred/was/here.yes, the basename is /fred/was/here.