openalexThe international archives of the photogrammetry, remote sensing and spatial information sciences/International archives of the photogrammetry, remote sensing and spatial information sciences2026-07-23
SPARC: Scalable 3D Panoptic Segmentation with Reinforcement-driven Clustering
Haoling Huang, Ting Han, Jie Ouyang, Yiping Chen
Abstract. Large-scale 3D panoptic segmentation is critical for digital twins and geospatial analysis, demanding models that process massive point clouds while distinguishing instances across highly diverse spatial scales. However, prevailing graph-based approaches rely on one-sho…