Ajian Liu

Achieving state-of-the-art performance in both 4D reconstruction and point tracking, Uni4R leverages continuous velocity fields to model dynamics at any timestamp, breaking free from traditional limitations.

AIGI detection improves significantly by prioritizing perception over traditional reasoning methods, revealing that fine-grained visual understanding is key to authenticity.

High-curvature regions in point clouds can be effectively represented by a novel hyperbolic rectification method that boosts discriminative power and captures fine geometric details.

Training on the Human4K dataset yields substantial gains in 3D human reconstruction accuracy, especially in depth-ambiguous scenarios.

StegaFFD lets you hide faces inside other images to protect privacy during face forgery detection, achieving better accuracy and stealth than existing methods.