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Adapting Clinical Images to Appear with Different Noise and Sharpness to Model a Different Detector

机译：调整临床图像以显示不同的噪声和清晰度，以对不同的检测器建模

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摘要

Comparing the clinical performance of digital mammography technologies is challenging. The aim of this work is to develop and test a methodology for adjusting mammographic images taken on a given imaging system to simulate their appearance as if taken on a different system. Such methodology would be very useful for a wide range of system performance and design studies using both phantom and clinical images. The process involves changing the image blurring in accordance with the measured modulation transfer functions and adding noise (electronic, quantum and structure). The method has been tested by adapting flat field images acquired using an amorphous selenium detector and a computed radiography (CR) detector to different dose levels and comparing the resultant simulated NPSs with directly measured NPSs. For the detectors used in this work the NPSs at different dose levels are well predicted. This could be a powerful tool for studies of clinical image quality.
机译：比较数字乳腺X线摄影技术的临床性能具有挑战性。这项工作的目的是开发和测试一种方法，用于调整在给定成像系统上拍摄的乳房X线照片，以模拟其外观，就像在其他系统上拍摄一样。这种方法对于使用幻像和临床图像的广泛系统性能和设计研究将非常有用。该过程涉及根据测得的调制传递函数来改变图像模糊并添加噪声（电子，量子和结构）。通过对使用非晶态硒检测器和计算机射线照相（CR）检测器获取的平场图像适配不同的剂量水平，并将所得的模拟NPS与直接测量的NPS进行比较，对该方法进行了测试。对于这项工作中使用的检测器，可以很好地预测不同剂量水平的NPS。这可能是研究临床图像质量的有力工具。

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  • 来源
    《Digital mammography》|2010年|p.319-326|共8页
  • 会议地点 Girona(ES);Girona(ES)
  • 作者

    Alistair Mackenzie; Adam Workman; David R. Dance; Mary Yip; Kevin Wells; Kenneth C. Young;

  • 作者单位

    National Coordinating Centre for the Physics of Mammography, Royal Surrey County Hospital, Guildford, GU2 7XX, UK;

    Northern Ireland Regional Medical Physics Agency, Forster Green Hospital, Belfast, BT8 4HD, UK;

    National Coordinating Centre for the Physics of Mammography, Royal Surrey County Hospital, Guildford, GU2 7XX, UK ,Department of physics, University of Surrey, Guildford, GU2 7XH, UK;

    Centre for Vision, Speech and Signal Processing, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, UK;

    Centre for Vision, Speech and Signal Processing, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, UK;

    National Coordinating Centre for the Physics of Mammography, Royal Surrey County Hospital, Guildford, GU2 7XX, UK ,Department of physics, University of Surrey, Guildford, GU2 7XH, UK;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生物医学工程;
  • 关键词

    mammography; simulation; noise;

    机译：乳腺摄影模拟;噪声;

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