Neural gigapixel images Neural SDF NeRF Neural volume We demonstrate near-instant training of neural graphics primitives on a single GPU for multiple tasks. In gigapixel image we represent an image by a neural network. SDF learns a signed distance function in 3D space whose zero level-set represents a 2D surface. NeRF [Mildenhall et al. 2020] uses 2D images and their camera poses to reconstruct a
![Instant Neural Graphics Primitives with a Multiresolution Hash Encoding](https://cdn-ak-scissors.b.st-hatena.com/image/square/6b8b5160812bcbea1e0f63b26ffd0597561d4bea/height=288;version=1;width=512/https%3A%2F%2Fnvlabs.github.io%2Finstant-ngp%2Fassets%2Ftwitter.jpg)