{ "sample_id": 630, "geometry_type": "flat", "geometry_parameters": { "type": "flat" }, "rq_target": 0.0021939090931797816, "rq_actual": 0.002193909093179782, "ra_actual": 0.001809513567989796, "severity": "high_corrosion", "is_anisotropic": false, "psd_method": "exponential", "manufacturing_process": "end_of_life_corrosion", "method": "hybrid", "grid_resolution": [ 296, 170 ], "physical_dimensions": [ 0.1864235325899533, 0.046644089897625404 ], "curvature_statistics": { "mean_slope": 0.0, "max_slope": 0.0, "height_range": 0.0, "mean_height": 0.0, "std_height": 0.0 }, "generation_timestamp": "2025-11-08T03:40:50.092830", "correlation_length": 0.018595677028699714, "hybrid_parameters": { "w_psd": 0.1, "w_perlin": 0.15, "w_fractal": 0.75, "perlin_octaves": 6, "perlin_persistence": 0.6921559476128735, "perlin_lacunarity": 2.5, "fractal_hurst": 0.3656509270916164, "fractal_modes": 75 } }