Department of Engineering;
Utah Valley University;
800 West University Parkway;
Orem;
UT 84058;
USA;
Department of Radiology and Imaging Sciences;
University of Utah;
729 Arapeen Drive;
Salt Lake City;
UT 84108;
USA;
School of Biomedical Engineering;
Shanghai Jiaotong University;
Shanghai 200240;
China;
Positron emission tomography; Time-of-flight; Analytic reconstruction; Noise control; Nonstationary filter;