Robust Dynamic Object Detection in Cluttered Indoor Scenes via Learned Spatiotemporal Cues

• URL: http://arxiv.org/abs/2603.15826v1
• Date: Mon, 16 Mar 2026 18:59:51 GMT
• Title: Robust Dynamic Object Detection in Cluttered Indoor Scenes via Learned Spatiotemporal Cues
• Abstract summary: We present a LiDAR-only framework that fuses temporal occupancy-grid-based motion segmentation with a learned bird's-eye-view (BEV) dynamic prior.<n>Experiments with motion-capture ground truth show our method achieves 28.67% higher recall and 18.50% higher F1 score than the state-of-the-art.
• Score: 15.517814236046055
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Reliable dynamic object detection in cluttered environments remains a critical challenge for autonomous navigation. Purely geometric LiDAR pipelines that rely on clustering and heuristic filtering can miss dynamic obstacles when they move in close proximity to static structure or are only partially observed. Vision-augmented approaches can provide additional semantic cues, but are often limited by closed-set detectors and camera field-of-view constraints, reducing robustness to novel obstacles and out-of-frustum events. In this work, we present a LiDAR-only framework that fuses temporal occupancy-grid-based motion segmentation with a learned bird's-eye-view (BEV) dynamic prior. A fusion module prioritizes 3D detections when available, while using the learned dynamic grid to recover detections that would otherwise be lost due to proximity-induced false negatives. Experiments with motion-capture ground truth show our method achieves 28.67% higher recall and 18.50% higher F1 score than the state-of-the-art in substantially cluttered environments while maintaining comparable precision and position error.

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