Title :
Block-iterative methods for image reconstruction from projections
Author :
Byrne, Charles L.
Author_Institution :
Dept. of Math., Massachusetts Univ., Lowell, MA, USA
fDate :
5/1/1996 12:00:00 AM
Abstract :
The simultaneous MART algorithm (SMART) and the expectation maximization method for likelihood maximization (EMML) are extended to block-iterative versions, BI-SMART and BI-EMML, that converge to a solution in the feasible case, for any choice of subsets. The BI-EMML reduces to the “ordered subset” EMML of Hudson et al. (1992, 1994) when their “subset balanced” property holds
Keywords :
image reconstruction; iterative methods; maximum likelihood estimation; BI-EMML; BI-SMART; block-iterative methods; expectation maximization method; image reconstruction; likelihood maximization; ordered subset; projections; simultaneous MART algorithm; subset balanced property; Array signal processing; Charge coupled devices; Filters; Image edge detection; Image processing; Image reconstruction; Log periodic antennas; Signal processing algorithms; Statistics; Vehicles;
Journal_Title :
Image Processing, IEEE Transactions on
