几何放大对DR成像质量的影响

详细信息

The Effect of Geometry Enlargement on DR Image Quality

摘要: 数字探测器阵列不能像胶片一样紧贴焊缝，因此数字射线(DR)照相的图像不可避免地会出现几何放大。通过试验探讨了DR检测过程中几何放大对图像分辨率和对比灵敏度的影响，指出在实际检测中必须考虑这些影响并控制几何放大。
- DR /
- 几何放大 /
- 分辨率 /
- 不清晰度 /
- 灵敏度
Abstract: Since the DDA cannot attach the welding seam closely as film, the image is geometrical enlarged as compared with the welding seam. This article summarized a series of examination to research the effect of geometrical enlargement on image resolution ratio and image sensitivity .The parameter shall be carefully defined to control the image enlargement ratio.
- DR /
- Geometry enlargement /
- Image resolution ratio /
- Unsharpness /
- Sensitivity

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