en970/depth-anything-v3-small-onnx

Depth Anything V3 Small — 8-bit ONNX

An 8-bit dynamically quantised export of onnx-community/depth-anything-v3-small, produced for depth-realtime, a browser-based real-time depth viewer.

The upstream repository ships float32 only, at 105 MB, which is more than a web page should ask a visitor to download before it can show anything. This export is 28.9 MB.

Fidelity

Measured against the float32 original on three scenes, at 322 px input:

Scene	Pearson r	float32 time	8-bit time
Portrait, deep background	0.9977	218 ms	101 ms
Indoor, mid range	0.9902	171 ms	113 ms
Indoor, close range	0.9984	127 ms	90 ms

Distinct depth levels surviving in the far third of the frame, after the percentile normalisation and 8-bit transport a real viewer applies: 179 → 177, 84 → 91, 50 → 53. The quantisation does not cost background structure.

Licence

Apache-2.0, inherited from the base model.