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DPER: Diffusion Prior Driven Neural Representation for Limited Angle and Sparse View CT Reconstruction
April 30, 2024, 4:47 a.m. | Chenhe Du, Xiyue Lin, Qing Wu, Xuanyu Tian, Ying Su, Zhe Luo, Hongjiang Wei, S. Kevin Zhou, Jingyi Yu, Yuyao Zhang
cs.CV updates on arXiv.org arxiv.org
Abstract: Limited-angle and sparse-view computed tomography (LACT and SVCT) are crucial for expanding the scope of X-ray CT applications. However, they face challenges due to incomplete data acquisition, resulting in diverse artifacts in the reconstructed CT images. Emerging implicit neural representation (INR) techniques, such as NeRF, NeAT, and NeRP, have shown promise in under-determined CT imaging reconstruction tasks. However, the unsupervised nature of INR architecture imposes limited constraints on the solution space, particularly for the highly …
abstract acquisition applications arxiv challenges cs.ai cs.cv data diffusion diverse eess.iv face however images incomplete data prior ray representation type view x-ray
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