NVIDIA applied this approach to a popular new technology called neural radiance fields, or NeRF. The NVIDIA Research team has developed an approach that accomplishes this task almost instantly - making it one of the first models of its kind to combine ultra-fast neural network training and rapid rendering. Known as inverse rendering, the process uses AI to approximate how light behaves in the real world, enabling researchers to reconstruct a 3D scene from a handful of 2D images taken at different angles. Today, AI researchers are working on the opposite: turning a collection of still images into a digital 3D scene in a matter of seconds. When the first instant photo was taken 75 years ago with a Polaroid camera, it was groundbreaking to rapidly capture the 3D world in a realistic 2D image.
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