X-ray Single Exposure Imaging and Image Processing of Objects with High Absorption Ratio
The dynamic range of an X-ray digital imaging system is very important when detecting objects with a high absorption ratio. In this paper, a ray source filter is used to filter the low-energy ray components which have no penetrating power to the high absorptivity object to reduce the X-ray integral...
| Main Authors: | , , , , |
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| Format: | Article |
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MDPI AG
2023-02-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/5/2498 |
| _version_ | 1827752122051985408 |
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| author | Yanxiu Liu Kaitai Li Dan Ding Ye Li Peng Zhao |
| author_facet | Yanxiu Liu Kaitai Li Dan Ding Ye Li Peng Zhao |
| author_sort | Yanxiu Liu |
| collection | DOAJ |
| description | The dynamic range of an X-ray digital imaging system is very important when detecting objects with a high absorption ratio. In this paper, a ray source filter is used to filter the low-energy ray components which have no penetrating power to the high absorptivity object to reduce the X-ray integral intensity. This enables the effective imaging of the high absorptivity objects and avoids the image saturation of low absorptivity objects, thus achieving single exposure imaging of high absorption ratio objects. However, this method will reduce the image contrast and weaken the image structure information. Therefore, this paper proposes a contrast enhancement method for X-ray images based on Retinex. Firstly, based on Retinex theory, the multi-scale residual decomposition network decomposes the image into an illumination component and a reflection component. Then, the contrast of the illumination component is enhanced through the U-Net model with the global–local attention mechanism, and the reflection component is enhanced in detail using the anisotropic diffused residual dense network. Finally, the enhanced illumination component and the reflected component are fused. The results show that the proposed method can effectively enhance the contrast in X-ray single exposure images of the high absorption ratio objects, and can fully display the structure information of images on devices with low dynamic range. |
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| format | Article |
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| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T07:10:19Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-513ae016ee4f4dcda6ca9825645ac8542023-11-17T08:35:37ZengMDPI AGSensors1424-82202023-02-01235249810.3390/s23052498X-ray Single Exposure Imaging and Image Processing of Objects with High Absorption RatioYanxiu Liu0Kaitai Li1Dan Ding2Ye Li3Peng Zhao4College of Physics, Changchun University of Science and Technology, Changchun 130022, ChinaCollege of Physics, Changchun University of Science and Technology, Changchun 130022, ChinaCollege of Physics, Changchun University of Science and Technology, Changchun 130022, ChinaCollege of Physics, Changchun University of Science and Technology, Changchun 130022, ChinaCollege of Physics, Changchun University of Science and Technology, Changchun 130022, ChinaThe dynamic range of an X-ray digital imaging system is very important when detecting objects with a high absorption ratio. In this paper, a ray source filter is used to filter the low-energy ray components which have no penetrating power to the high absorptivity object to reduce the X-ray integral intensity. This enables the effective imaging of the high absorptivity objects and avoids the image saturation of low absorptivity objects, thus achieving single exposure imaging of high absorption ratio objects. However, this method will reduce the image contrast and weaken the image structure information. Therefore, this paper proposes a contrast enhancement method for X-ray images based on Retinex. Firstly, based on Retinex theory, the multi-scale residual decomposition network decomposes the image into an illumination component and a reflection component. Then, the contrast of the illumination component is enhanced through the U-Net model with the global–local attention mechanism, and the reflection component is enhanced in detail using the anisotropic diffused residual dense network. Finally, the enhanced illumination component and the reflected component are fused. The results show that the proposed method can effectively enhance the contrast in X-ray single exposure images of the high absorption ratio objects, and can fully display the structure information of images on devices with low dynamic range.https://www.mdpi.com/1424-8220/23/5/2498high absorption ratiosingle-exposureX-ray imagingimage contrast enhancement |
| spellingShingle | Yanxiu Liu Kaitai Li Dan Ding Ye Li Peng Zhao X-ray Single Exposure Imaging and Image Processing of Objects with High Absorption Ratio Sensors high absorption ratio single-exposure X-ray imaging image contrast enhancement |
| title | X-ray Single Exposure Imaging and Image Processing of Objects with High Absorption Ratio |
| title_full | X-ray Single Exposure Imaging and Image Processing of Objects with High Absorption Ratio |
| title_fullStr | X-ray Single Exposure Imaging and Image Processing of Objects with High Absorption Ratio |
| title_full_unstemmed | X-ray Single Exposure Imaging and Image Processing of Objects with High Absorption Ratio |
| title_short | X-ray Single Exposure Imaging and Image Processing of Objects with High Absorption Ratio |
| title_sort | x ray single exposure imaging and image processing of objects with high absorption ratio |
| topic | high absorption ratio single-exposure X-ray imaging image contrast enhancement |
| url | https://www.mdpi.com/1424-8220/23/5/2498 |
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