{"artifact_id":"L1-119","layer":"L1","title":"Shearography (ESPI-based strain imaging)","domain":"Industrial Inspection","sub_domain":"Laser-speckle shearography for defect detection via strain","physics_fingerprint":{"L_DAG":3.5,"title":"Shearography (ESPI-based strain imaging)","domain":"Industrial Inspection","carrier":"photon","primitives":["L.laser_illumination","L.shear_interferometer","L.speckle_correlation","int.spatial"],"sub_domain":"Laser-speckle shearography for defect detection via strain","noise_model":"gaussian","problem_class":"linear_inverse","solution_space":"2D_strain_gradient","difficulty_delta":5,"integration_axis":"spatial","sensing_mechanism":"shearography_espi"},"observable_profile":{"metric":"PSNR_dB","regime":"Existence of the recovered 2D strain gradient 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 moderately conditioned (kappa_eff ~= 14); vibration_isolation dominates the stability cliff; speckle_decorrelation 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":1024,"W":1024,"SNR_dB":20.0,"pixel_um":10,"shear_mm":1.0,"vibration_isolation":1.0,"speckle_decorrelation":0.0,"illumination_uniformity":1.0},"input_format":"measurement_only","problem_class":"shearography","forward_operator":"shearography_forward","epsilon_fn_center":"22.0"},"omega_bounds":{"H":[256,4096],"W":[256,4096],"SNR_dB":[0.0,30.0],"pixel_um":[1,100],"shear_mm":[0.1,10],"shear_calibration":[0.0,0.1],"vibration_isolation":[0.3,1.0],"speckle_decorrelation":[0.0,0.5],"illumination_uniformity":[0.5,1.0]},"epsilon_bounds":{"psnr_db":[5.0,40.0]},"allowed_problem_classes":["shearography"],"allowed_omega_dimensions":["H","W","pixel_um","shear_mm","SNR_dB","vibration_isolation","speckle_decorrelation","illumination_uniformity","vibration_isolation","speckle_decorrelation","illumination_uniformity","shear_calibration"],"allowed_forward_operators":["shearography_forward"]},"hardness_fn":{"type":"epsilon_fn","delta":5,"kappa":280,"metric":"PSNR_dB"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0x02a8ae5695a7752450f6e3b65bc6ed6325450fe1f4bc09df8cd8a043ed96a524","chain_tx_hash":"0xfa025a20c50cf1ceae67ffb65e4c31d7a59c486476dd6dea5d4e6aa92125d698","chain_block":41554212}