LUNA16 A mirror of the LUNA16 (LUng Nodule Analysis 2016) challenge data — 888 thoracic LDCT scans derived from LIDC IDRI — repackaged for use in the EasyMedSeg medical segmentation framework. Contents subset0/ … subset9/ — 888 CT scans in MetaImage format ( .mhd + .raw ) seg lungs LUNA16/ — official lung field masks ( .mhd + .zraw ) nodule masks spheres/ — derived nodule masks built from annotations.csv by drawing a sphere of diameter mm at each nodule centroid. annotations.csv — 1,186 nodule annotations (centroid + diameter) candidates.csv , candidates V2.csv — false positive reduction candidates sampleSubmission.csv — challenge submission template Mask sources LUNA16 ships only centroid+diameter annotations for nodules — there are no official voxel level nodule masks. Two derived mask sources are provided here: 1. Lung field masks ( seg lungs LUNA16/ ) — official, paired 1:1 with all 888 scans. Per the original release: "provided to aid nodule detection; NOT intended as the reference standard for any segmentation study." 2. Nodule sphere masks ( nodule masks spheres/ ) — generated by the uploader from annotations.csv : for each scan, a binary uint8 volume with a sphere of diamet…
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