Spam detection in the physical world

OpenAI Blog Papers
domain-randomization sim-to-real deep-learning robotic-perception spam-detection computer-vision

Summary

OpenAI demonstrates that domain randomization—randomly varying colors, textures, lighting, and camera settings in simulated training data—enables deep learning models to effectively transfer from simulation to real-world robotic spam detection tasks without retraining from scratch.

We’ve created the world’s first Spam-detecting AI trained entirely in simulation and deployed on a physical robot.
Original Article
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Cached at: 04/20/26, 02:45 PM

# Spam detection in the physical world Source: [https://openai.com/index/spam-detection-in-the-physical-world/](https://openai.com/index/spam-detection-in-the-physical-world/) Deep learning\-driven robotic systems are bottlenecked by data collection: it’s extremely costly to obtain the hundreds of thousands of images needed to train the perception system alone\. It’s cheap to generate simulated data, but simulations diverge enough from reality that people typically retrain models from scratch when moving to the physical world\. We’ve[shown⁠\(opens in a new window\)](https://arxiv.org/abs/1703.06907)that domain randomization, an existing idea for making detectors trained on simulated images transfer to real images, works well for cluttered scenes\. The method is simple: we randomly vary colors, textures, lighting conditions, and camera settings in simulated scenes\. The resulting dataset is sufficiently variable to allow a deep neural network trained on it to generalize to reality\.

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