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Automatic selection of the log-subtraction decomposition parameters for dual energy chest radiography

机译:自动选择双能量胸部X射线对数减法分解参数

摘要

The present technique provides a variety of processing schemes for decomposing soft tissue and bone images more accurately from low and high-energy images acquired from an imaging system, such as a dual-energy digital radiography system using flat-panel technology. In particular, a parameter selection process is provided for automatically computing the decomposition parameters WS and WB to create soft tissue and bone images, respectively. The parameter selection process modifies a default decomposition parameter based on a variety of image and technique variables, such as intensity levels of the low and high-energy images, the patient size, and the collimator filtration setting. The parameter selection process avoids robustness problems associated with image-based algorithms, and the process may operate without any direct user interaction.
机译:本技术提供了多种处理方案,用于从从成像系统(例如,使用平板技术的双能数字射线照相系统)获取的低和高能图像中更准确地分解软组织和骨骼图像。特别地,提供了用于自动计算分解参数WS和WB以分别创建软组织图像和骨骼图像的参数选择过程。参数选择过程会根据各种图像和技术变量(例如低能和高能图像的强度级别,患者人数和准直仪过滤设置)修改默认分解参数。参数选择过程避免了与基于图像的算法相关的健壮性问题,并且该过程可以在没有任何直接用户交互的情况下运行。

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