A region segmentation based algorithm for building a crystal position lookup table in a scintillation detector
文献类型：期刊论文
| 作者 | Wang HP(王海鹏) ; Yuan MK(贠明凯); Liu SQ(刘双全); Fan Q(樊磬); Cao XX(曹学香); Chai P(柴培); Dan BC(单保慈); Wang, HP; Yun, MK; Liu, SQ
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| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2015 |
| 卷号 | 39期号:3页码:38201 |
| 关键词 | position lookup table position histogram region segmentation scintillation detector |
| 通讯作者 | 单保慈 |
| 英文摘要 | In a scintillation detector, scintillation crystals are typically made into a 2-dimensional modular array. The location of incident gamma-ray needs be calibrated due to spatial response nonlinearity. Generally, position histograms-the characteristic flood response of scintillation detectors-are used for position calibration. In this paper, a position calibration method based on a crystal position lookup table which maps the inaccurate location calculated by Anger logic to the exact hitting crystal position has been proposed. Firstly, the position histogram is preprocessed, such as noise reduction and image enhancement. Then the processed position histogram is segmented into disconnected regions, and crystal marking points are labeled by finding the centroids of regions. Finally, crystal boundaries are determined and the crystal position lookup table is generated. The scheme is evaluated by the whole-body positron emission tomography (PET) scanner and breast dedicated single photon emission computed tomography scanner developed by the Institute of High Energy Physics, Chinese Academy of Sciences. The results demonstrate that the algorithm is accurate, efficient, robust and applicable to any configurations of scintillation detector. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear ; Physics, Particles & Fields |
| 收录类别 | SCI ; CA |
| WOS记录号 | WOS:000351807500016 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228376]  |
| 专题 | 高能物理研究所_核技术应用研究中心 |
| 推荐引用方式 GB/T 7714 | Wang HP,Yuan MK,Liu SQ,et al. A region segmentation based algorithm for building a crystal position lookup table in a scintillation detector[J]. CHINESE PHYSICS C,2015,39(3):38201. |
| APA | 王海鹏.,贠明凯.,刘双全.,樊磬.,曹学香.,...&Shan, BC.(2015).A region segmentation based algorithm for building a crystal position lookup table in a scintillation detector.CHINESE PHYSICS C,39(3),38201. |
| MLA | 王海鹏,et al."A region segmentation based algorithm for building a crystal position lookup table in a scintillation detector".CHINESE PHYSICS C 39.3(2015):38201. |
入库方式： OAI收割
来源：高能物理研究所
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