ALMA: Airborne LiDAR Masked Autoencoding Framework for Self Supervised Representation Learning on 3DEP Point Cloud Arnav Goel and Jinha Jung reconstruction models, and complete final segmentation models. Download and verify using the code repository's manifest/downloader. SHA256SUMS lists the exact exported weight hashes. Optimizer states are omitted. Inputs are 20,480 XYZ points. Coordinates must be in feet. Pretraining uses bounding-box-centered XYZ divided by [50,50,25] (QL1) / [100,100,75] (QL2). Downstream uses mean-centered XY divided by half crop width and minimum-shifted Z in feet. Configurations are not interchangeable. The segmentation decoder predicts LAS 2–6; other training…
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