{"url":"/method/point-gnn","slug":"point-gnn","name":"Point-GNN","full_name":"Point-GNN","full_name_withheld":false,"description_markdown":"**Point-GNN** is a graph neural network for detecting objects from a LiDAR point cloud. It predicts the category and shape of the object that each vertex in the graph belongs to. In Point-GNN, there is an auto-registration mechanism to reduce translation variance, as well as a box merging and scoring operation to combine detections from multiple vertices accurately.","description_state":"present","introduced_year":null,"introduced_by":{"title":"Point-GNN: Graph Neural Network for 3D Object Detection in a Point Cloud","paper":"/paper/point-gnn-graph-neural-network-for-3d-object","first_author":"Weijing Shi","n_authors":3,"url_abs":null,"archive_paper_url":"https://paperswithcode.com/paper/point-gnn-graph-neural-network-for-3d-object"},"source":{"url":"https://arxiv.org/abs/2003.01251v1","title":"Point-GNN: Graph Neural Network for 3D Object Detection in a Point Cloud","url_on_a_paper_host":true},"code_snippet_url":null,"code_snippet_url_on_a_code_host":false,"categories":[{"area":"Computer Vision","area_id":"computer-vision","collection":"Point Cloud Models","url":"/methods/category/point-cloud-models","pwc_aliases":[]},{"area":"Graphs","area_id":"graphs","collection":"Graph Models","url":"/methods/category/graph-models","pwc_aliases":[]},{"area":"Computer Vision","area_id":"computer-vision","collection":"3D Object Detection Models","url":"/methods/category/3d-object-detection-models","pwc_aliases":[]}],"n_papers_tagged":1,"archive_num_papers":1,"papers_newest_first":[{"paper":"/paper/point-gnn-graph-neural-network-for-3d-object","title":"Point-GNN: Graph Neural Network for 3D Object Detection in a Point Cloud","date":"2020-03-02","arxiv_id":"2003.01251","n_code_links":1,"syntology":null}],"papers_shown":1,"tasks":[{"task":"/task/3d-object-detection","name":"3D Object Detection","papers":1},{"task":"/task/graph-neural-network","name":"Graph Neural Network","papers":1},{"task":"/task/object-detection","name":"Object Detection","papers":1},{"task":"/task/translation","name":"Translation","papers":1},{"task":"/task/object-detection-1","name":"object-detection","papers":1}],"tasks_shown":5,"n_tasks":5,"usage_by_year":[{"year":"2020","papers":1}],"row_source":"methods_table","archive":{"source":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","archive_url":"https://paperswithcode.com/method/point-gnn"},"syntology_read_at":"2026-09-24T18:15:14+00:00"}