Tomographic X-ray data of carved cheese

This is an open-access dataset of tomographic X-ray data of a carved cheese. The dataset consists of the X-ray sinogram of a single 2D slice of the cheese slice with three different resolutions, and the corresponding measurement matrices modeling the linear operation of the X-ray transform. Each of the sinograms was obtained from a measured 360-projection fan-beam sinogram by down-sampling and taking logarithms. The original (measured) sinogram is also provided in its original form and resolution. Documentation of the dataset is available at arxiv.org/abs/1705.05732. See also www.fips.fi/dataset.php.

本数据集为开源的雕刻奶酪X射线断层扫描数据集。数据集包含单块奶酪切片的二维断层正弦图（sinogram），共三种不同分辨率，同时附带用于建模X射线变换（X-ray transform）线性运算的对应测量矩阵（measurement matrices）。所有正弦图均由实测的360投影扇束（fan-beam）正弦图通过下采样（down-sampling）与对数运算生成。原始（实测）正弦图亦以其原始形式与分辨率一并提供。本数据集的相关文档可通过arxiv.org/abs/1705.05732获取，亦可参考www.fips.fi/dataset.php。

搜集汇总

背景与挑战

背景概述

该数据集是一个开放获取的断层扫描X射线数据集，专注于一个雕刻的奶酪切片，包含不同分辨率的X射线正弦图和相应的测量矩阵，用于模拟X射线变换的线性操作。数据集由赫尔辛基大学和柏林工业大学的研究人员于2017年发布，适用于逆问题、X射线成像和算法开发的研究与测试，并提供完整的原始测量数据和重建结果。