X-ray CT reconstruction algorithms for airport security and process tomography

用于机场安全和过程断层扫描的 X 射线 CT 重建算法

• 批准号: EP/E010997/1
• 负责人: William Lionheart
• 金额: $ 64.17万
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2007
• 资助国家: 英国
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FE010997%2F1
• 关键词: ray; CT; reconstruction; algorithms; airport

Although X-ray computerized tomography is currently used to scan airport luggage for potential explosive devices, these machines are slow and produce a large number of false positives. A UK company CXR have developed an X-ray scanner with multiple sources that can be switched on in a predetermined sequence. This is much faster than the the conventional approach where a single source is rotated around the object. However the reconstruction of images from this sytem requires new mathematical theory and algorithms.The new fast system can also be used to monitor the flow of mixtures such as oil, gas and water in in pipes, an important problem in the oil extraction industry.In this project we will develop and test new reconstruction algorithms for these applications.

尽管目前使用X射线计算机断层扫描来扫描机场行李，以寻找潜在的爆炸装置，但这些机器速度很慢，会产生大量的假阳性。一家英国公司CXR开发了一种具有多个源的X射线扫描仪，可以按预定的顺序打开。这比传统的方法要快得多，在传统方法中，单个源绕着对象旋转。然而，从该系统重建图像需要新的数学理论和算法。新的FAST系统还可以用于监测石油、天然气和水等混合物在管道中的流动，这是石油开采行业的一个重要问题。在这个项目中，我们将为这些应用开发和测试新的重建算法。

项目成果

Towards in-process x-ray CT for dimensional metrology

• DOI: 10.1088/0957-0233/27/3/035401
• 发表时间: 2016-03-01
• 期刊: MEASUREMENT SCIENCE AND TECHNOLOGY
• 影响因子: 2.4
• 作者: Warnett, Jason M.;Titarenko, Valeriy;Williams, Mark A.
• 通讯作者: Williams, Mark A.

High speed imaging of dynamic processes with a switched source x-ray CT system

使用开关源 X 射线 CT 系统对动态过程进行高速成像

• DOI: 10.1088/0957-0233/26/5/055401
• 发表时间: 2015
• 期刊: Measurement Science and Technology
• 影响因子: 2.4
• 作者: Thompson W

A novel technique to incorporate structural prior information into multi-modal tomographic reconstruction

• DOI: 10.1088/0266-5611/30/6/065004
• 发表时间: 2014-06-01
• 期刊: INVERSE PROBLEMS
• 影响因子: 2.1
• 作者: Kazantsev, Daniil;Ourselin, Sebastien;Arridge, Simon R.
• 通讯作者: Arridge, Simon R.

Multimodal Image Reconstruction Using Supplementary Structural Information in Total Variation Regularization.

• DOI: 10.1007/s11220-014-0097-5
• 发表时间: 2014
• 期刊: Sensing and imaging
• 影响因子: 2.2
• 作者: Kazantsev D;Lionheart WR;Withers PJ;Lee PD
• 通讯作者: Lee PD

Rebinning Algorithms for Helical Cone Beam CT

螺旋锥束 CT 的重新分类算法

• 发表时间: 2009
• 作者: M Betcke