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Positron emission tomographic map reconstruction using fuzzy-median filter
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10.1063/1.2358943
/content/aip/journal/apl/89/15/10.1063/1.2358943
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/15/10.1063/1.2358943
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

PET scanning geometry showing the annihilation and detection processes.

Image of FIG. 2.
FIG. 2.

neighborhood of a central pixel showing the directional derivatives along .

Image of FIG. 3.
FIG. 3.

[(a) and (e)] Original phantom. Reconstructed map after 50 iterations of [(b) and (f)] ML algorithm, [(c) and (g)] MRP algorithm, and [(d) and (h)] proposed algorithm.

Image of FIG. 4.
FIG. 4.

(a) Gaussian noise corrupted image. Image reconstruction from noisy projection data using (b) ML algorithm, (c) MRP algorithm, and (d) proposed algorithm. The corresponding line plots are shown below the reconstructed images.

Image of FIG. 5.
FIG. 5.

(a) Original phantom and (b) Poisson noise corrupted image. (c), (d), and (e) are, respectively, the reconstructed images using ML, MRP, and proposed algorithms.

Image of FIG. 6.
FIG. 6.

NMSE vs iteration plot for ML, MAP, and proposed algorithms.

Image of FIG. 7.
FIG. 7.

(a)–(c) and (d)–(f) are the reconstructed images using ML, MRP, and proposed approaches for 50 000 and 100 000 emission counts.

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/content/aip/journal/apl/89/15/10.1063/1.2358943
2006-10-11
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Positron emission tomographic map reconstruction using fuzzy-median filter
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/15/10.1063/1.2358943
10.1063/1.2358943
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