3 recent papers that helped me

  1. Sensitivity analysis of parameters and contrasting performance of ground filtering algorithms with UAV photogrammetry based and LiDAR point clouds.pdf - Google Drive
    Really helped me find some good SMRF parameters that work to my liking

  2. Enhancing UAV–SfM 3D Model Accuracy in High-Relief Landscapes by Incorporating Oblique Images.pdf - Google Drive
    Helped me eliminate doming effect without GCPs on larger sites

  3. Curvature Weighted Decimation A Novel Curvature-Based.pdf - Google Drive
    Method for point cloud decimation that might work well in future