Title :
An angular frequency dependent filter for PET reconstruction
Author :
Feng, Jian ; Kao, Chien-Min ; La Rivière, Patrick ; Pan, Xiaochuan
Author_Institution :
Dept. of Radiol., Chicago Univ., IL, USA
Abstract :
PET image quality is often limited by the presence of noise and blur. In this paper, we developed an angular frequency dependent filter for improving reconstruction of PET images. Our results indicated that the proposed filter outperforms the conventional method in terms of both visual quality and quantitative accuracy. In addition, the proposed filter can automatically adjust its degree of smoothing according to the count level of the input PET data.
Keywords :
image reconstruction; medical image processing; positron emission tomography; PET image quality; PET reconstruction; angular frequency dependent filter; blur; image reconstruction; noise; quantitative accuracy; visual quality; Degradation; Filtering; Filters; Frequency dependence; Image quality; Image reconstruction; Noise reduction; Positron emission tomography; Radiology; Stochastic processes;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2001 IEEE
Print_ISBN :
0-7803-7324-3
DOI :
10.1109/NSSMIC.2001.1008679
