1 INTRODUCTION
2 Deep Iterative Registration
2.1 Deep Similarity based Registration
2.2 Reinforcement Learning based Registration
3 Supervised Transformation Estimation
3.1 Fully Supervised Transformation Estimation
3.2 Dual/Weakly Supervised Transformation Estimation
4 Unsupervised Transformation Estimation
4.2 Feature based Unsupervised Transformation Estimation
5 Research Trends and Future Directions
5.1 Deep Adversarial Image Registration
5.2 Reinforcement Learning based Registration
5.3 Raw Imaging Domain Registration
6 Conclusion