Weakly Supervised Point Cloud Semantic Segmentation via Artificial Oracle

The REAL framework samples query points based on model predictions and requests annotations from PP2S, dynamically refining labels and improving model training. Furthermore, to overcome several challenges of employing an artificial model as an oracle, we formulate effective query sampling and label updating strategies. Our comprehensive experiments and comparisons demonstrate that the REAL framework significantly outperforms existing methods across various benchmarks. The code is available at https://github.com/jihun1998/AO.