NVIDIA Uses AI to Banish Noise from Images

While modern digital cameras have made significant strides in shooting cleaner images at high ISOs, many photographers still do battle with image noise on a regular basis. Chip maker NVIDIA has just revealed a new technique, based on deep learning, that can quickly dispatch image noise. As NVIDIA explains, typical deep learning approaches have required training a neural network to recognize when a clean end state image should look like based on a series of noisy images. Armed with this information, the network can then take a fresh, noisy image and remove the noise. But NVIDIA's new technique works without needing to be feed samples of noisy images. "It is possible to learn to restore signals without ever observing clean ones, at performance sometimes exceeding training using clean exemplars," the researchers stated in their paper.