Data supporting "Accuracy Assessment of Underwater Photogrammetry of 3D Living Corals in a Controlled Environment"

This dataset supports the study “Accuracy Assessment of Underwater Photogrammetry of 3D Living Coral Ramets in a Controlled Environment.” It includes in-air reference models and underwater reconstructions generated using CoralReef3D and Agisoft Metashape for 61 living coral ramets representing six species and three growth forms, imaged over three sessions in 2025. The deposit contains four archives: data_sample.zip: An example dataset of 228 underwater images of branching coral ramets acquired on March 10, 2025, with camera parameters. documentation.zip: Guides for camera calibration, reconstruction, and export. measurements_and_comparisons.zip: Buoyant-weight measurements, model-derived morphometrics, reconstruction accuracy metrics, statistical comparisons, and numerical data supporting the paper’s tables and figures. reconstructed_models_and_aligned_point_clouds.zip: In-air and underwater meshes, texture images, and point clouds used for evaluation, with a file manifest. See README.txt for file organization, identifiers, units, and missing observations. The CoralReef3D software is planned for public release at a later date and is not included in this deposit.