A new in-line X-ray phase-contrast computed tomography reconstruction algorithm based on adaptive-weighted anisotropic TpV regularization for insufficient data

In-line X-ray phase-contrast computed tomography (IL-PCCT) is a valuable tool for revealing the internal detailed structures in weakly absorbing objects (e.g. biological soft tissues), and has a great potential to become clinically applicable. However, the long scanning time for IL-PCCT will result in a high radiation dose to biological samples, and thus impede the wider use of IL-PCCT in clinical and biomedical imaging. To alleviate this problem, a new iterative CT reconstruction algorithm is presented that aims to decrease the radiation dose by reducing the projection views, while maintaining the high quality of reconstructed images. The proposed algorithm combines the adaptive-weighted anisotropic total p-variation (AwaTpV, 0

Source: Journal of Synchrotron Radiation - June 10, 2019 Category: Physics Authors: Zhao, Y. Ji, D. Chen, Y. Jian, J. Zhao, X. Zhao, Q. Lv, W. Xin, X. Yang, T. Hu, C. Tags: in-line X-ray phase-contrast computed tomography adaptive-weighted anisotropic total p-variation regularization projection onto convex sets radiation dose research papers Source Type: research