FDG-PET images of patients suffering from Alzheimers disease (AD) were obtained from Paul Scherre Institute, Villingen, Switzerland. The data were from a CTI/Siemens ECAT 933/04-16 scanner, comprising of 7 image slices 128 x 128 pixels. The study included 48 Clinically diagnosed AD patients and 73 normal controls. Using an invariant feature extraction method features were extracted. The features are invariant to translation and rotation of object(s) within the image. The ...
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