Title :
Maximum likelihood method of high-resolution imaging in nuclear medicine
Author :
Weidong, Wang ; Shanglian, Bao ; Jianxin, Cai
Author_Institution :
Inst. of Heavy Ion Phys., Peking Univ., Beijing, China
Abstract :
A new type of gamma ray camera is described that gives useful image information over its entire crystal face. The array of photo-multiplier tubes (PMTs) of the camera is divided into the four sub-arrays whose outputs are weighted into the same equivalent solid angle functions (ESAFs) respectively, called the mean detector-response functions (MDRFS). This high resolution imaging system for nuclear medicine is studied and designed via the application of digital electronics, digital signal processing and maximum likelihood estimation
Keywords :
cameras; gamma-ray detection; image resolution; maximum likelihood estimation; medical image processing; photomultipliers; radioisotope imaging; digital electronics; digital signal processing; equivalent solid angle functions; gamma ray camera; high resolution imaging system; high-resolution imaging; maximum likelihood estimation; mean detector-response functions; nuclear medicine; photo-multiplier tubes; sub-arrays; Cameras; Face detection; High-resolution imaging; Maximum likelihood detection; Maximum likelihood estimation; Nuclear electronics; Nuclear medicine; Sensor arrays; Signal design; Solids;
Conference_Titel :
Signal Processing, 1996., 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2912-0
DOI :
10.1109/ICSIGP.1996.571255
