Sim-to-Real Transfer — From Virtual Training to Physical Deployment
Exploring techniques that bridge the simulation-to-reality gap, enabling robots trained in virtual environments to perform reliably in the real world.
Training robots in the real world is expensive, slow, and potentially dangerous. Simulation offers a safe, scalable alternative — but policies trained in simulation often fail when deployed on physical hardware.
The Sim-to-Real Gap
The gap arises from differences between simulated and real-world physics, sensor noise, visual appearance, and environmental dynamics. Bridging this gap is one of the central challenges in modern robotics.
Techniques
- Domain randomization: Varying simulation parameters to improve generalization
- Domain adaptation: Learning to map simulated features to real-world features
- Sim-to-real fine-tuning: Using a small amount of real-world data to adapt sim-trained policies
Real-World Success Stories
Recent work in locomotion, manipulation, and navigation has demonstrated that sim-to-real transfer can work at scale when combined with careful domain randomization and robust policy architectures.
