1. Introduction
2. Background
2.1. Structure from Motion
2.2. Plane Sweep
2.3. Depth Filtering & Fusion
2.4. Datasets
2.5. Evaluation Metrics
2.6. Loss Function
3. Method
3.1. Feature Extraction
3.2. Cost Volume Construction
3.3. Cost Volume Regularization
4. Discussions
4.1. Results & Analysis
4.2. Topics Remaining Unstudied
5. Conclusion