An X-ray image processing device
    31.
    发明公开
    An X-ray image processing device 无效
    Röntgenstrahl-Bildverarbeitungsgerät。

    公开(公告)号:EP0398029A1

    公开(公告)日:1990-11-22

    申请号:EP90107327.0

    申请日:1990-04-18

    IPC分类号: A61B6/03 H04N5/32 G06F15/68

    摘要: An X-ray image processing device using dual energy (1,2) projection radiography method, wherein the low energy image and the high energy image are subjected to a subtraction (7) processing to output a first image such as a soft tissue X-ray image, and the first image and the low energy image are subjected to another subtraction (8) to output a second image such as a bone X-ray image without deterioration of the X-ray image.

    摘要翻译: 一种使用双能量(1,2)投影射线照相方法的X射线图像处理装置,其中低能量图像和高能量图像经受减法(7)处理以输出第一图像,例如软组织X- 并且第一图像和低能量图像经受另一次减法(8)以输出诸如骨骼X射线图像的第二图像,而不会降低X射线图像。

    Radiographic image processing method and photographic imaging apparatus therefor
    32.
    发明公开
    Radiographic image processing method and photographic imaging apparatus therefor 失效
    维也纳自然保护联盟Bildverarbeitung und photoischesBildverarbeitungsgerätdafür。

    公开(公告)号:EP0385505A2

    公开(公告)日:1990-09-05

    申请号:EP90104119.4

    申请日:1990-03-02

    IPC分类号: A61B6/03

    摘要: Transmission images are obtained by radiating X-rays having two different energy levels onto a subject in one direction, and then transformed into logarithmic images, respectively. From these logarithmic images, a contrast ratio due to the two kinds of X-rays having different energies is obtained. From this contrast ratio, the term relating to the thickness of the subject is eliminated, thereby providing information only relating to the quality of the material. By collating the information with the previously measured data of materials, the material of the subject is identified.

    摘要翻译: 通过在一个方向上将具有两个不同能级的X射线照射到被摄体上而获得透射图像,然后分别转换成对数图像。 从这些对数图像获得由于具有不同能量的两种X射线引起的对比度。 根据该对比度,消除与被检体的厚度有关的术语,从而提供与材料的质量有关的信息。 通过将信息与以前测量的材料数据进行整理,识别对象的材料。