Narrow-Energy-Width CT Based on Multivoltage X-Ray Image Decomposition
A polychromatic X-ray beam causes the grey of the reconstructed image to depend on its position within a solid and the material being imaged. This factor makes quantitative measurements via computed tomography (CT) imaging very difficult. To obtain a narrow-energy-width reconstructed image, we propo...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Biomedical Imaging |
| Online Access: | http://dx.doi.org/10.1155/2017/8126019 |
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| _version_ | 1832551676049883136 |
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| author | Jiaotong Wei Yan Han Ping Chen |
| author_facet | Jiaotong Wei Yan Han Ping Chen |
| author_sort | Jiaotong Wei |
| collection | DOAJ |
| description | A polychromatic X-ray beam causes the grey of the reconstructed image to depend on its position within a solid and the material being imaged. This factor makes quantitative measurements via computed tomography (CT) imaging very difficult. To obtain a narrow-energy-width reconstructed image, we propose a model to decompose multivoltage X-ray images into many narrow-energy-width X-ray images by utilizing the low frequency characteristics of X-ray scattering. It needs no change of hardware in the typical CT system. Solving the decomposition model, narrow-energy-width projections are obtained and it is used to reconstruct the image. A cylinder composed of aluminum and silicon is used in a verification experiment. Some of the reconstructed images could be regarded as real narrow-energy-width reconstructed images, which demonstrates the effectiveness of the proposed method. |
| format | Article |
| id | doaj-art-69bdf8ed5b7345fa939c615896687c6b |
| institution | Kabale University |
| issn | 1687-4188 1687-4196 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Biomedical Imaging |
| spelling | doaj-art-69bdf8ed5b7345fa939c615896687c6b2025-02-03T06:00:56ZengWileyInternational Journal of Biomedical Imaging1687-41881687-41962017-01-01201710.1155/2017/81260198126019Narrow-Energy-Width CT Based on Multivoltage X-Ray Image DecompositionJiaotong Wei0Yan Han1Ping Chen2Shanxi Key Laboratory of Signal Capturing & Processing, North University of China, Taiyuan 030051, ChinaShanxi Key Laboratory of Signal Capturing & Processing, North University of China, Taiyuan 030051, ChinaShanxi Key Laboratory of Signal Capturing & Processing, North University of China, Taiyuan 030051, ChinaA polychromatic X-ray beam causes the grey of the reconstructed image to depend on its position within a solid and the material being imaged. This factor makes quantitative measurements via computed tomography (CT) imaging very difficult. To obtain a narrow-energy-width reconstructed image, we propose a model to decompose multivoltage X-ray images into many narrow-energy-width X-ray images by utilizing the low frequency characteristics of X-ray scattering. It needs no change of hardware in the typical CT system. Solving the decomposition model, narrow-energy-width projections are obtained and it is used to reconstruct the image. A cylinder composed of aluminum and silicon is used in a verification experiment. Some of the reconstructed images could be regarded as real narrow-energy-width reconstructed images, which demonstrates the effectiveness of the proposed method.http://dx.doi.org/10.1155/2017/8126019 |
| spellingShingle | Jiaotong Wei Yan Han Ping Chen Narrow-Energy-Width CT Based on Multivoltage X-Ray Image Decomposition International Journal of Biomedical Imaging |
| title | Narrow-Energy-Width CT Based on Multivoltage X-Ray Image Decomposition |
| title_full | Narrow-Energy-Width CT Based on Multivoltage X-Ray Image Decomposition |
| title_fullStr | Narrow-Energy-Width CT Based on Multivoltage X-Ray Image Decomposition |
| title_full_unstemmed | Narrow-Energy-Width CT Based on Multivoltage X-Ray Image Decomposition |
| title_short | Narrow-Energy-Width CT Based on Multivoltage X-Ray Image Decomposition |
| title_sort | narrow energy width ct based on multivoltage x ray image decomposition |
| url | http://dx.doi.org/10.1155/2017/8126019 |
| work_keys_str_mv | AT jiaotongwei narrowenergywidthctbasedonmultivoltagexrayimagedecomposition AT yanhan narrowenergywidthctbasedonmultivoltagexrayimagedecomposition AT pingchen narrowenergywidthctbasedonmultivoltagexrayimagedecomposition |