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Decompose X-ray Images for Bone and Soft Tissue

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Document pages: 8 pages

Abstract: Bones are always wrapped by soft tissues. As a result, bones in their X-rayimages are obscured and become unclear. In this paper, we tackle this problemand propose a novel task to virtually decompose the soft tissue and bone byimage processing algorithms. This task is fundamentally different fromsegmentation because the decomposed images share the same imaging domain. Ourdecomposition task is also fundamentally different from the conventional imageenhancement. We propose a new mathematical model for such decomposition. Ourmodel is ill-posed and thus it requires some priors. With proper assumptions,our model can be solved by solving a standard Laplace equation. The resultingbone image is theoretically guaranteed to have better contrast than theoriginal input image. Therefore, the details of bones get enhanced and becomeclearer. Several numerical experiments confirm the effective and efficiency ofour method. Our approach is important for clinical diagnosis, surgery planning,recognition, deep learning, etc.

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