Tag: point-cloud
All the articles with the tag "point-cloud".
COPC: Cloud Optimized Point Clouds for Streaming LiDAR
Published: at 10:00 AMA practical guide to COPC (Cloud Optimized Point Cloud), the LAZ 1.4 based format that lets you stream massive LiDAR datasets over HTTP without downloading them. Learn its internal structure, how to create COPC files with PDAL and Untwine, how to query them remotely from Python, and how it compares to Entwine's EPT format.
Semantic Segmentation of Point Clouds with PointNet++
Published: at 12:30 PMA practical guide to semantic segmentation of 3D point clouds with PointNet++. Learn why point clouds are hard for neural networks, how PointNet++ builds a hierarchical feature representation with sampling and grouping, and how to implement the key building blocks in PyTorch, with a worked example on the S3DIS indoor dataset.
Processing Point Clouds with PDAL
Published: at 10:00 AMA practical introduction to PDAL (Point Data Abstraction Library) for processing LiDAR point clouds. Learn the pipeline model, run filters from the command line and JSON, and integrate PDAL with Python and NumPy.