45. PointNet
45
Qi, C. R., Su, H., Mo, K., & Guibas, L. J. (2017). PointNet : Deep
Learning on Point Sets for 3D Classification and Segmentation
Big Data + Deep Representation Learning. IEEE Conference on
ComputerVision and Pattern Recognition (CVPR).
各点群の点を独立に畳み込む
Global Max Poolingで点群全体の特徴量を取得
各点を個別
に畳み込み
アフィン変換
各点の特徴を統合
46. PointNet++
46
Qi, C. R.,Yi, L., Su, H., & Guibas, L. J. (2017). PointNet++: Deep
Hierarchical Feature Learning on Point Sets in a Metric Space.
Conference on Neural Information Processing Systems (NIPS).
PointNetを階層的に適用
点群をクラスタ分割→PointNet→クラスタ内で統合を繰り返す