1. 3D가 사용되는 곳

• AI driving
• AR / VR
• 3D printing
• medical applications

2. 3D 표현 방법

3. 3D dataset

• ShapeNet: 51,300 3d models / 55 categories
• PartNet: useful for segmantation, 573,585 part instance, 26,671 3D models
• SceneNet: 5,000,000 RGB-Depth indoor images
• ScanNet: (RGB-Depth) dataset, 2.5 million views
• Outdoor 3D Scene datasets
  • KITTI: LiDAR data labeled by 3D bboxes
  • Sementic KITTI: LiDAR data labeled per point
  • Waymo Open Dataset: LiDAR data labeled bt 3D bboxes

4. 3D tasks

4.1 3D recognition

• 2d와 비슷

4.2 3D object detection

• 자율주행에서 유용

4.3 3D semantic segmentation

4.4 Conditional 3D generation

• Mesh R-CNN
• input: 2D -> output: 3D