Apple CT Data: Ground truth reconstructions - 6 of 6
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Summary This submission is a supplementary material to the article [Coban 2020b]. As part of the manuscript, we release three simulated parallel-beam tomographic datasets of 94 apples with internal defects, the ground truth reconstructions and two defect label files. Description This Zenodo upload contains the ground truth reconstructed slices for each apple. In total, there are 72192 reconstructed slices, which have been divided into 6 separate submissions: ground_truths_1.zip (1 of 6): 10.5281/zenodo.4550729 ground_truths_2.zip (2 of 6): 10.5281/zenodo.4575904 ground_truths_3.zip (3 of 6): 10.5281/zenodo.4576078 ground_truths_4.zip (4 of 6): 10.5281/zenodo.4576122 ground_truths_5.zip (5 of 6): 10.5281/zenodo.4576202 ground_truths_6.zip (6 of 6): 10.5281/zenodo.4576260 (this upload) The simulated parallel-beam datasets and defect label files are also available through this project, via a separate Zenodo upload: 10.5281/zenodo.4212301. Apparatus The dataset is acquired using the custom-built and highly flexible CT scanner, FleX-ray Laboratory, developed by TESCAN-XRE, located at CWI in Amsterdam. This apparatus consists of a cone-beam microfocus X-ray point source that projects polychromatic X-rays onto a 1944-by-1536 pixels, 14-bit, flat detector panel. Full details can be found in [Coban 2020a]. Ground Truth Generation We reconstructed the raw tomographic data, which was captured at sample resolution of 54.2µm over a 360 degrees in circular and continuous motion in a cone-beam setup. A total of 1200 projections were collected, which were distributed evenly over the full circle. The raw tomographic data is available upon request. The ground truth reconstructed slices were generated based on Conjugate Gradient Least Squares (CGLS) reconstruction of each apple. The voxel grid in the reconstruction was 972px x 972px x 768px. The resolution in the ground truth reconstructions remained unchanged. All ground truth reconstructed slices are in .tif format. Each file is named "appleNo_sliceNo.tif". List of Contents The contents of the submission is given below. ground_truths_6: This folder contains reconstructed slices of 16 apples Additional Links These datasets are produced by the Computational Imaging group at Centrum Wiskunde & Informatica (CI-CWI). For any relevant Python/MATLAB scripts for the FleX-ray datasets, we refer the reader to our group's GitHub page. Contact Details For more information or guidance in using these dataset, please get in touch with s.b.coban [at] cwi.nl vladyslav.andriiashen [at] cwi.nl poulami.ganguly [at] cwi.nl Acknowledgments We acknowledge GREEFA for supplying the apples and further discussions.
摘要：本提交为论文[Coban 2020b]的补充材料。作为稿件的一部分，我们公开了3组针对94颗带有内部缺陷苹果的模拟平行束层析成像数据集，以及对应的真值重建结果与两份缺陷标注文件。 数据集说明：本Zenodo上传内容包含每颗苹果的真值重建切片。总计72192张重建切片，已被划分为6个独立提交文件： ground_truths_1.zip（第1/6部分）：10.5281/zenodo.4550729 ground_truths_2.zip（第2/6部分）：10.5281/zenodo.4575904 ground_truths_3.zip（第3/6部分）：10.5281/zenodo.4576078 ground_truths_4.zip（第4/6部分）：10.5281/zenodo.4576122 ground_truths_5.zip（第5/6部分）：10.5281/zenodo.4576202 ground_truths_6.zip（第6/6部分，即本上传文件） 模拟平行束数据集与缺陷标注文件可通过本项目的另一Zenodo上传获取：10.5281/zenodo.4212301。 采集设备：本数据集使用由阿姆斯特丹CWI的TESCAN-XRE团队开发的定制化高柔性CT扫描仪FleX-ray Laboratory采集。该设备包含一个锥束微焦点X射线点源，可将多色X射线投射至1944×1536像素、14位的平板探测器面板。完整细节可参阅[Coban 2020a]。 真值生成方法：我们对原始层析成像数据进行了重建：该数据以54.2μm的采样分辨率，在锥束设置下以圆周连续运动完成360°扫描，共采集1200幅均匀分布于全圆周的投影图像。原始层析成像数据可按需获取。 真值重建切片基于每颗苹果的共轭梯度最小二乘（Conjugate Gradient Least Squares, CGLS）重建生成。重建体素网格尺寸为972px×972px×768px，真值重建的分辨率保持不变。所有真值重建切片均为.tif格式，文件命名格式为“appleNo_sliceNo.tif”。 内容清单：本提交的内容如下： ground_truths_6：该文件夹包含16颗苹果的重建切片。 附加链接：本数据集由阿姆斯特丹数学与计算机科学中心（CWI）计算成像组（CI-CWI）制作。如需获取适用于FleX-ray数据集的Python/MATLAB脚本，请参阅本团队的GitHub页面。 联系方式：如需了解更多使用方法或相关指导，请联系：s.b.coban [at] cwi.nl、vladyslav.andriiashen [at] cwi.nl、poulami.ganguly [at] cwi.nl。 致谢：我们感谢GREEFA提供苹果样本并参与相关讨论。
