{"artifact_id":"L1-470","layer":"L1","title":"Photogrammetry Structure-from-Motion","domain":"Geodesy","sub_domain":"Photogrammetry","physics_fingerprint":{"L_DAG":3.5,"title":"Photogrammetry Structure-from-Motion","domain":"Geodesy","carrier":"photon","primitives":["S.sfm.feature_matching","O.iter","O.reprojection.error"],"sub_domain":"Photogrammetry","noise_model":"gaussian","problem_class":"nonlinear_inverse","solution_space":"3D_point_cloud_camera_poses","difficulty_delta":3,"integration_axis":"image_network","sensing_mechanism":"bundle_adjustment_sfm"},"observable_profile":{"metric":"GCP_RMSE_cm","regime":"Existence of the recovered 3D_point_cloud_camera_poses is guaranteed within the declared Omega bounds. Uniqueness holds on the measurement-supported subspace; out-of-support modes are controlled by declared priors. Stability is conditionally stable (kappa_eff ~= 200); GPS_geotag_accuracy_m dominates the stability cliff; the remaining mismatch parameters contribute higher-order bias terms. Gaussian sets the irreducible data-fidelity floor.","secondary":"reprojection_error_px"},"size_tiers":{"center_spec":{"omega":{"N_GCPs":5,"N_images":200,"overlap_percent":80,"flight_altitude_m":120},"input_format":"measurement_only","problem_class":"nonlinear_inverse","forward_operator":"bundle_adjustment_sfm","epsilon_fn_center":"3.0 GCP_RMSE_cm"},"omega_bounds":{"N_GCPs":[0,50],"N_images":[10,10000],"overlap_percent":[50,95],"flight_altitude_m":[30,2000]},"epsilon_bounds":{"GCP_RMSE_cm":[0.5,20.0]},"allowed_problem_classes":["nonlinear_inverse"],"allowed_omega_dimensions":["N_images","N_GCPs","overlap_percent","flight_altitude_m"],"allowed_forward_operators":["bundle_adjustment_sfm"]},"hardness_fn":{"type":"epsilon_fn","delta":3,"kappa":10000.0,"metric":"GCP_RMSE_cm"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0xf3c8207115e276cca032e9e270613281d8590d3b9040e6e05205b1375254785d","chain_tx_hash":"0xd7d86be7c33fe9a9df4bc677e263b501a9378e6e342b95ae376b042bd2739e61","chain_block":41555299}