{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["006:55"], "contactPoint": {"fn": "Felix Kim", "hasEmail": "mailto:felix.kim@nist.gov"}, "description": "X-ray computed tomography (XCT) datasets with known ground truth pores were developed using realistic XCT simulation.   Non-overlapping spherical pores of varying sizes are randomly distributed in a cylindrical part near surfaces and within the core. Ground truth data, ground truth binary data,  normalized projection,  and reconstructed data for three different signal-to-noise ratios (SNRs) are provided.  The data set can be used for evaluation and comparison of image segmentation/detection and reconstruction algorithms.", "distribution": [{"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/gt_0500.png", "mediaType": "image/png"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/gt_0500.png.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/gt_binary_0500.png", "mediaType": "image/png"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/gt_binary_0500.png.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/norm1_0000.png", "mediaType": "image/png"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/norm1_0000.png.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/norm2_0000.png", "mediaType": "image/png"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/norm2_0000.png.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/norm3_0000.png", "mediaType": "image/png"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/norm3_0000.png.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/recon1_0500.png", "mediaType": "image/png"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/recon1_0500.png.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/recon2_0500.png", "mediaType": "image/png"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/recon2_0500.png.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/recon3_0500.png", "mediaType": "image/png"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Figures/recon3_0500.png.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Ground%20Truth%20Binary.zip", "mediaType": "application/zip"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Ground%20Truth%20Binary.zip.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Ground%20Truth.zip", "mediaType": "application/zip"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Ground%20Truth.zip.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Normalized1.zip", "mediaType": "application/zip"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Normalized1.zip.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Normalized2.zip", "mediaType": "application/zip"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Normalized2.zip.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Normalized3.zip", "mediaType": "application/zip"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Normalized3.zip.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/README.md", "mediaType": "text/x-web-markdown"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/README.md.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Reconstruction1.zip", "mediaType": "application/zip"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Reconstruction1.zip.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Reconstruction2.zip", "mediaType": "application/zip"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Reconstruction2.zip.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Reconstruction3.zip", "mediaType": "application/zip"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2846/Reconstruction3.zip.sha256", "mediaType": "text/plain"}], "identifier": "ark:/88434/mds2-2846", "issued": "2025-11-19", "keyword": ["X-ray computed tomography", "additive manufacturing", "defect", "evaluation metrics", "flaw", "ground truth data", "image segmentation", "reconstruction"], "landingPage": "https://data.nist.gov/od/id/mds2-2846", "language": ["en"], "license": "https://www.nist.gov/open/license", "modified": "2025-11-17 00:00:00", "programCode": ["006:045"], "publisher": {"@type": "org:Organization", "name": "National Institute of Standards and Technology"}, "theme": ["Manufacturing:Additive manufacturing", "Mathematics and Statistics:Image and signal processing", "Mathematics and Statistics:Statistical analysis"], "title": "Simulated X-ray computed tomography (XCT) and ground truth images of cylindrical sample with randomly distributed spherical pores"}