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lkeab / gaussian-grouping

[ECCV'2024] Gaussian Grouping for open-world Anything reconstruction, segmentation and editing.
https://arxiv.org/abs/2312.00732
Apache License 2.0
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Question about gaussian calss's parameter #50

Open zcc00210 opened 4 weeks ago

zcc00210 commented 4 weeks ago

Hi! excellent work! I'm new to this field. About the parameters of gaussian class, i'd like to know the meaning of "_objects_dc", "_features_dc" and "_features_rest".And what is their role? image

smileyenot983 commented 5 days ago
  1. _features_dc and _features_rest are coefficients for spherical harmonics and are used to add view-dependent color effects
  2. _objects_ds was added in the gaussian-grouping paper and is used to encode the object id via 16 dimensional vector, which is then mapped to the n_objects(by default=256) dimensional vector