Xidian Open-Sources AdaAnchor4D: Monocular 4D Reconstruction for UAVs with Adaptive Anchors Reaching SOTA

Xidian University and Sun Yat-sen University propose AdaAnchor4D, an adaptive anchor deformation framework for 4D reconstruction of dynamic scenes from monocular UAV footage. It reaches SOTA on PSNR, SSIM, and other metrics across the UAV-Arc4D, VisDrone, and UAVDT datasets while maintaining real-time rendering. Built on 3D Gaussian Splatting, the framework uses three modules—ACFA anchor-conditioned feature aggregation, DLGD decoupled local geometric deformation, and DACW density-adaptive coordinate warping—to eliminate ghosting artifacts and preserve dynamic details.