Point-GR: Graph Residual Point Cloud Network for 3D Object Classification and Segmentation
This addresses the problem of efficient 3D object classification and segmentation for computer vision applications, representing an incremental improvement over existing graph-based methods.
The paper tackles the challenge of 3D shape analysis in point cloud data by proposing Point-GR, a deep learning architecture that reduces network parameters and achieves a state-of-the-art mean IoU of 73.47% on the S3DIS benchmark for scene segmentation.
In recent years, the challenge of 3D shape analysis within point cloud data has gathered significant attention in computer vision. Addressing the complexities of effective 3D information representation and meaningful feature extraction for classification tasks remains crucial. This paper presents Point-GR, a novel deep learning architecture designed explicitly to transform unordered raw point clouds into higher dimensions while preserving local geometric features. It introduces residual-based learning within the network to mitigate the point permutation issues in point cloud data. The proposed Point-GR network significantly reduced the number of network parameters in Classification and Part-Segmentation compared to baseline graph-based networks. Notably, the Point-GR model achieves a state-of-the-art scene segmentation mean IoU of 73.47% on the S3DIS benchmark dataset, showcasing its effectiveness. Furthermore, the model shows competitive results in Classification and Part-Segmentation tasks.