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Utilization of DICOM GSDF to Modify Lookup Tables for Images Acquired on Film Digitizers

机译:利用DICOM GSDF修改胶片数字化仪上获取的图像的查找表

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摘要

Film digitizers are used to transfer hardcopy x-ray transmission films into a PACS environment. Variability between digitizers is primarily due to a lack of an acquisition standard. By utilizing the Digital Imaging and Communications in Medicine (DICOM) Part 14 Grayscale Standard Display Function (GSDF) as basis from which to judge and modify digitizer output, a methodology using Just Noticeable Differences (JND) can be established that will create custom lookup tables for film digitizers. These modified images can then be judged against the original films using the GSDF to determine if the original films' contrast is preserved. Results based on JND indicated that relative contrast of the original image is preserved.
机译:胶片数字转换器用于将硬拷贝X射线透射胶片转移到PACS环境中。数字化仪之间的差异主要是由于缺乏采集标准。通过利用医学数字成像和通信(DICOM)第14部分灰度标准显示功能(GSDF)作为判断和修改数字化仪输出的基础,可以建立一种使用“仅明显差异”(JND)的方法,该方法将创建自定义查找表用于电影数字化仪。然后可以使用GSDF判断这些修改后的图像是否与原始胶片相对应,以确定是否保留了原始胶片的对比度。基于JND的结果表明保留了原始图像的相对对比度。

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