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发明授权
US08750569B2 Automated crystal identification achieved via modifiable templates 有权
通过可修改的模板实现自动晶体识别

Automated crystal identification achieved via modifiable templates
摘要：
A nuclear imaging system (10) includes a crystal identification system (40) which receives a flood image (30) which includes a plurality of peaks, each peak responsive to radiation detected by a corresponding scintillator crystal. A crystal identification processor (42) partitions the flood image (30) into a plurality of regions (56), each region being masked to correspond to one of an array of nuclear detectors. A model image (62) is generated in which the at least one Gaussian models represents the identified peaks. Misidentified peaks in the model image (62) in which locations of the peaks in the flood image (30) differ from the corresponding scintillator crystal are determined and the locations of the misidentified peaks in the flood image (30) are corrected. A calibration processor (43) corrects geometric distortions in acquired projection data according to the corrected peaks.
摘要（中）：

核成像系统（10）包括晶体识别系统（40），其接收包括多个峰值的泛洪图像（30），每个峰值响应于由相应的闪烁体晶体检测的辐射。 晶体识别处理器（42）将洪水图像（30）分割成多个区域（56），每个区域被掩蔽以对应于核探测器阵列之一。 产生模型图像（62），其中至少一个高斯模型表示所识别的峰值。 确定在洪水图像（30）中的峰的位置与相应的闪烁体晶体不同的模型图像（62）中的误识别的峰，并校正洪水图像（30）中的错误识别的峰的位置。 校准处理器（43）根据校正的峰值校正获取的投影数据中的几何失真。

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