∇-SDF: Learning Euclidean Signed Distance Functions Online with Gradient-Augmented Octree Interpolation and Neural Residual
Zhirui Dai*, Qihao Qian*, Tianxing Fan, Nikolay Atanasov
Submitted to IROS 2026
A hybrid method combining explicit gradient-augmented octree interpolation with implicit neural residuals for efficient and accurate online SDF reconstruction.