SegmentAnyTree: A sensor and platform agnostic deep learning model for tree segmentation using laser scanning data

• URL: http://arxiv.org/abs/2401.15739v1
• Date: Sun, 28 Jan 2024 19:47:17 GMT
• Title: SegmentAnyTree: A sensor and platform agnostic deep learning model for tree segmentation using laser scanning data
• Authors: Maciej Wielgosz, Stefano Puliti, Binbin Xiang, Konrad Schindler, Rasmus Astrup
• Abstract summary: This research advances individual tree crown (ITC) segmentation in lidar data, using a deep learning model applicable to various laser scanning types. It addresses the challenge of transferability across different data characteristics in 3D forest scene analysis. The model, based on PointGroup architecture, is a 3D CNN with separate heads for semantic and instance segmentation.
• Score: 15.438892555484616
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This research advances individual tree crown (ITC) segmentation in lidar data, using a deep learning model applicable to various laser scanning types: airborne (ULS), terrestrial (TLS), and mobile (MLS). It addresses the challenge of transferability across different data characteristics in 3D forest scene analysis. The study evaluates the model's performance based on platform (ULS, MLS) and data density, testing five scenarios with varying input data, including sparse versions, to gauge adaptability and canopy layer efficacy. The model, based on PointGroup architecture, is a 3D CNN with separate heads for semantic and instance segmentation, validated on diverse point cloud datasets. Results show point cloud sparsification enhances performance, aiding sparse data handling and improving detection in dense forests. The model performs well with >50 points per sq. m densities but less so at 10 points per sq. m due to higher omission rates. It outperforms existing methods (e.g., Point2Tree, TLS2trees) in detection, omission, commission rates, and F1 score, setting new benchmarks on LAUTx, Wytham Woods, and TreeLearn datasets. In conclusion, this study shows the feasibility of a sensor-agnostic model for diverse lidar data, surpassing sensor-specific approaches and setting new standards in tree segmentation, particularly in complex forests. This contributes to future ecological modeling and forest management advancements.

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