Update README with all four datasets (DL3DV, GSO30, NAVI, GSO)

README.md

@@ -4,8 +4,50 @@ license: mit
 
 # Streaming3D Dataset
 
-This dataset contains assets used by the Streaming3D benchmark. The current
-release documents the `GSO30` subset; other subsets may be added later.
+This dataset contains assets used by the Streaming3D benchmark.
+
+## Overview
+
+| Subset  | Files    | Description                                      |
+|---------|----------|--------------------------------------------------|
+| DL3DV   | 13,724   | 16 indoor/outdoor scenes from DL3DV              |
+| GSO30   | 20,099   | 30-object subset from Google Scanned Objects     |
+| NAVI    | 28,995   | Navigation evaluation dataset                    |
+| GSO     | 67,982   | Full Google Scanned Objects dataset (1032 objects) |
+
+## Download
+
+You can download individual subsets using `hf download`:
+
+```bash
+hf download WalkerCH/Streaming3D DL3DV/
+hf download WalkerCH/Streaming3D GSO30/
+hf download WalkerCH/Streaming3D NAVI/
+hf download WalkerCH/Streaming3D GSO/
+```
+
+Only the subset you request will be downloaded; you do not need to download the entire repository.
+
+---
+
+## DL3DV
+
+16 indoor/outdoor scenes from the DL3DV dataset. Each scene directory contains:
+
+```text
+DL3DV/
+  scene_<id>_<hash>_<name>/
+    colmap/           # COLMAP reconstruction output (features, matches, sparse model)
+    da3/              # DA3 format data
+    images/           # Source images (PNG)
+    sam3_masks/       # SAM3 segmentation masks
+    split.json        # Train/test split
+    transforms.json   # Camera transforms
+  scenes.csv          # Scene metadata
+  scenes selected.csv # Selected scene list
+```
+
+---
 
 ## GSO30
 
@@ -94,3 +136,30 @@ In short, the default protocol is:
 1. Train or reconstruct from all `render_spiral_100/images` frames.
 2. Evaluate by rendering or comparing against `render_mvs_25/model_norm.glb`
    using the 25 camera poses in `render_mvs_25/model/*.npy`.
+
+---
+
+## GSO
+
+Full Google Scanned Objects dataset containing 1032 objects.
+
+```text
+GSO/
+  <object_name>/
+    images/           # Object renders (PNG)
+    ...
+```
+
+---
+
+## NAVI
+
+Navigation evaluation dataset with two difficulty levels.
+
+```text
+NAVI/
+  hard/              # Hard difficulty navigation scenes
+  normal/            # Normal difficulty navigation scenes
+  src_code/          # Source code for evaluation
+  README.md          # NAVI-specific documentation
+```