Kvinnsland Y, Skretting A
Department of Nuclear Medicine, The Norwegian Radium Hospital, Oslo.
Phys Med Biol. 2000 May;45(5):1183-93. doi: 10.1088/0031-9155/45/5/308.
Two methods have been developed for the separation of contributions from two different nuclides in an autoradiography picture. Both approaches, a modified least squares (LS) and a maximum likelihood (ML) algorithm, are based on the position and energy information available from a digital detector. Tests and comparisons, using artificially as well as measured data, demonstrate that the ML approach performs slightly better, but is much more computationally demanding than the LS method.
已经开发出两种方法来分离放射自显影片中来自两种不同核素的贡献。两种方法，即改进的最小二乘法（LS）和最大似然法（ML），都是基于数字探测器提供的位置和能量信息。使用人工数据和实测数据进行的测试与比较表明，最大似然法的性能略优，但计算量比最小二乘法大得多。
