SCDCE-3D: Soft-Weighted Covariance and Dual-Branch Channel Enhancement for 3D Place Recognition in Complex Orchard Environments
Recent progress in 3D place recognition has delivered strong results in urban and indoor scenarios, but orchards remain largely unexplored. In these environments, unreliable or absent GNSS signals necessitate LiDAR-based place recognition for robust long-term localization, yet challenges such as ill…