Gaussian Head Avatar: Ultra High-Fidelity Head Avatar via Dynamic Gaussians

Re:Gaussian Head Avatar: Ultra High-Fidelity Head Avatar via... by eurekin on Friday December 08, 2023 @09:03AM (#38569152)

Someone mentioned previously that guassian splats are ideal extension of Ai image generation into 3d and they might have turned out correct

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Re:Gaussian Head Avatar: Ultra High-Fidelity Head Avatar via... by kridsdale1 on Friday December 08, 2023 @09:41AM (#38569584)

They’re basically voxels after we abandon Cartesian 3-dimensionality (which imposes cubes)

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Re:Gaussian Head Avatar: Ultra High-Fidelity Head Avatar via... by porphyra on Friday December 08, 2023 @12:40PM (#38571745)

More like point clouds since they are not constrained to a grid.

NERF is more like voxels though.

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Re:Gaussian Head Avatar: Ultra High-Fidelity Head Avatar via... by blovescoffee on Friday December 08, 2023 @04:18PM (#38574550)

What do you mean NERF is like voxels? It is very much NOT like voxels

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Re:Gaussian Head Avatar: Ultra High-Fidelity Head Avatar via... by porphyra on Saturday December 09, 2023 @03:22PM (#38585615)

The original NERF paper had a voxel-like grid, but instead of regular voxels with a single color per grid cell, they had an MLP in each cell that models the color as a function of position and angle.

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Re:Gaussian Head Avatar: Ultra High-Fidelity Head Avatar via... by blovescoffee on Saturday December 09, 2023 @04:52PM (#38586436)

The literal definition of a NeRF and rendering function in the original paper are a continuous non-discretized vector-field and sampling based render function.

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Re:Gaussian Head Avatar: Ultra High-Fidelity Head Avatar via... by porphyra on Thursday December 14, 2023 @02:28PM (#38646047)

I'm sorry, you're right. I got confused with some other papers like Plenoxels that use voxels.

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