Bt-4k.7z.002 Apr 2026

Multi-part archives (like .001 , .002 ) are common for 4K datasets because:

The UVG (Ultra Video Group) provides widely cited 4K RAW sequences for video coding and vision tasks. BT-4K.7z.002

UETT4K Anti-UAV: A Large Scale 4K Benchmark Dataset for Vision-based Drone Detection in High-Resolution Imagery Journal: IEEE Access (2025) DOI: 10.1109/ACCESS.2025.3562890 Why the File is Split Multi-part archives (like

💡 You must have all parts (BT-4K.7z.001, BT-4K.7z.002, etc.) in the same folder to extract the contents. Related 4K Vision Research Multi-part archives (like .001

For 4K shadow masks and recovery methods, see the resources from the LaSOT dataset team .

Large files are often split to bypass server-side file size restrictions.