Visualizing TreeMatch: Tree Density Estimation with FiftyOne

TreeMatch, an optimal-transport method for estimating tree density from satellite imagery, is explored through FiftyOne, an open-source tool that provides a deeper understanding of model performance beyond benchmark tables. TreeMatch addresses the challenge of using both strong and weak point annotations, accommodating expert-labeled data alongside noisier pseudolabels, and is benchmarked on the TinyTrees dataset, which includes approximately 11.7 million point-annotated trees across three sensors from Rwanda, China, and France. FiftyOne enhances the evaluation by offering visualization features, such as Keypoints for point annotations, Heatmap overlays for predicted density maps, and sortable fields for per-tile count errors, allowing users to inspect where the model fails and understand label noise. The TinyTrees dataset is available under a CC BY-NC 4.0 license for research and education only, and FiftyOne allows the exploration of TreeMatch using official data loaders and pretrained checkpoints without modifying the code.

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