{"artifact_id":"L1-123","layer":"L1","title":"Digital Image Correlation (DIC) for full-field strain","domain":"Industrial Inspection","sub_domain":"Full-field displacement and strain via speckle tracking","physics_fingerprint":{"L_DAG":3.0,"title":"Digital Image Correlation (DIC) for full-field strain","domain":"Industrial Inspection","carrier":"photon","primitives":["L.speckle_pattern","L.reference_deformed","L.subset_correlation","int.spatial"],"sub_domain":"Full-field displacement and strain via speckle tracking","noise_model":"gaussian","problem_class":"linear_inverse","solution_space":"2D_displacement_strain","difficulty_delta":3,"integration_axis":"spatial","sensing_mechanism":"speckle_correlation_vision"},"observable_profile":{"metric":"PSNR_dB","regime":"Existence of the recovered 2D displacement strain is guaranteed within the declared Omega bounds. Uniqueness holds on the measurement-supported subspace; out-of-support modes are controlled by the declared priors. Stability is well-conditioned (kappa_eff ~= 8); speckle_size_variation dominates the stability cliff; illumination_non_uniformity and the remaining mismatch parameters contribute higher-order bias terms. Additive gaussian thermal/electronic noise sets the irreducible data-fidelity floor, while mild Tikhonov or analytic inversion is sufficient at the nominal Omega point.","secondary":"SSIM"},"size_tiers":{"center_spec":{"omega":{"H":2048,"W":2048,"SNR_dB":30,"pixel_um":5,"subset_px":21,"out_of_plane_motion":0.0,"speckle_size_variation":0.0,"illumination_non_uniformity":0.0},"input_format":"measurement_only","problem_class":"dic","forward_operator":"dic_forward","epsilon_fn_center":"28.0"},"omega_bounds":{"H":[512,8192],"W":[512,8192],"SNR_dB":[10.0,40.0],"pixel_um":[1,50],"subset_px":[9,81],"out_of_plane_motion":[0.0,0.3],"speckle_size_variation":[0.0,0.3],"camera_calibration_error":[0.0,0.05],"illumination_non_uniformity":[0.0,0.3]},"epsilon_bounds":{"psnr_db":[5.0,40.0]},"allowed_problem_classes":["dic"],"allowed_omega_dimensions":["H","W","subset_px","pixel_um","SNR_dB","speckle_size_variation","illumination_non_uniformity","out_of_plane_motion","speckle_size_variation","illumination_non_uniformity","out_of_plane_motion","camera_calibration_error"],"allowed_forward_operators":["dic_forward"]},"hardness_fn":{"type":"epsilon_fn","delta":3,"kappa":160,"metric":"PSNR_dB"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0xcc9ea5fa082850c8a7fe30e442fe5ee36bf50c63aa71727adff9a314cd0a253a","chain_tx_hash":"0x5b2fb17cf3b6014ad7f6c25ce464cac90df202196229bcdbcfc23c021843fce1","chain_block":41554212}