Performance of Principal Component Analysis and Independent Component Analysis with Respect to Signal Extraction from Noisy Positron Emission Tomography Data

Fig. (8) SNR values for the corresponding structures in first principal component (PC1) synthetic images. Images contain correlated Gaussian noise and are generated utilizing different pre-normalized methods and compared to the mean image. Each point of the curves representing SNR values for each one of the structures in both mean image (dash-star) and pre-normalized image (solid curve).