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. 2024 Feb 16;14:3917. doi: 10.1038/s41598-024-54649-x

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Overview of the generation of simulated sparse projection image. The sinograms of sparse projection were obtained by forward projecting to original images every 1°, 2°, 5°, and 10°. The simulated artifact image as sparse-view CT was created using the filtered back projection with the Shepp-Logan filter.