TTT3R

TTT3R

3D reconstruction as test-time training

Description

Recurrent models that reconstruct scenes frame by frame forget and drift on long sequences. TTT3R treats 3D reconstruction as test-time training, using a simple state update rule to improve CUT3R's length generalization.

No retraining is needed; it runs on CUT3R checkpoints and was published at ICLR 2026.

Features



Long sequences:Less drift.

Training-free:Reuses CUT3R weights.

Demo:One command.