inspection_dataset — OPTICS scene op

• Data kinds: table × table × table → table

• Call: import fullseye as fs; fs.ledger.inspection_dataset(scene, camera, lights, n: 'int' = 8, seed: 'int' = 0, exposure_ms: 'float' = 10.0, bit_depth: 'int' = 8, jitter_mm: 'float' = 0.0, tilt_jitter_deg: 'float' = 0.0, intensity_jitter: 'float' = 0.0, depth: 'int' = 1, defects: 'dict' = None, supersample: 'int' = 1, adaptive: 'bool' = False, light_samples: 'int' = None, environment=None, environment_gain: 'float' = 1.0) -> 'list' (to call the implementation directly, import optscene; optscene.inspection_dataset(scene, camera, lights, n: 'int' = 8, seed: 'int' = 0, exposure_ms: 'float' = 10.0, bit_depth: 'int' = 8, jitter_mm: 'float' = 0.0, tilt_jitter_deg: 'float' = 0.0, intensity_jitter: 'float' = 0.0, depth: 'int' = 1, defects: 'dict' = None, supersample: 'int' = 1, adaptive: 'bool' = False, light_samples: 'int' = None, environment=None, environment_gain: 'float' = 1.0) -> 'list'; from the registry, opsoptics.get("inspection_dataset"))

Usage

Generate n training images for a visual-inspection AI, with pixel-perfect labels.

The same part is shot while varying the illumination (passing several in lights cycles through them image by image), the placement (translation by jitter_mm, camera tilt by tilt_jitter_deg) and the brightness (relative fluctuation by intensity_jitter) = domain randomization.

The return value is one dict per image:

image quantized (H, W, 3) / defect_mask ground truth of defects /

part_mask ground truth of the part / depth_mm ground truth of depth /

meta illumination type used, exposure, fluctuation amounts, defect labels (every value needed for reproduction).

Passing an argument dict of random_defects in defects redraws the defects for each image (targeting the first item of scene). This is exactly the training-data generation for visual inspection AI: type, position, size and depth of the defects vary together with the illumination.

Fixing seed makes it deterministic. Even the same defect looks different when the illumination changes is the key point of this generator, which is why the number of images with varied illumination matters.

Family-wide input contract (fail-closed)

Every optics op validates its input before computing (nothing slips through silently):

• Units are baked into the argument name — _mm / _um / _deg / _mrad. Confusing mm with µm does not crash; it yields a plausible-looking wrong answer, so the name prevents it. Nothing here guesses the unit from the magnitude.

• Strings raise ValueError — float('50') succeeds, so an unparsed configuration value would slip through as a length (measured: thin_lens('50', '200') returned a plausible 66.667 mm). bool is refused too, as the implicit promotion True == 1.

• complex / masked arrays raise ValueError (real-valued slots only; silently dropping the imaginary part or peeling off the mask is refused). NaN/Inf raises ValueError on every input.

• Division by zero and its relatives are refused by name: focal length 0, radius of curvature 0, refractive index <= 0, a fully opaque aperture (all zeros, so the normalisation is 0/0), a PSF whose sum is <= 0, a Stokes vector with S0 = 0, and an object sitting at the front focal point (the image is at infinity).

• Only two ops return a non-finite value, and both state it as a contract: depth_of_field returns far_mm = inf beyond the hyperfocal distance (that is what the hyperfocal distance means), and gaussian_beam returns wavefront_radius_mm = inf at the waist (the radius of curvature of a plane wavefront). Both also return a finite companion (far_is_infinite / curvature_per_mm). Any other silent NaN/Inf is detected internally and raises ValueError — "float64 overflowed" and "the answer is infinite" are different claims, so the first is never returned wearing the face of the second.

• Size caps: generated grids are capped by optics.MAX_GRID (4096); supplied fields/PSFs/apertures by optics.MAX_FIELD_ELEMENTS (2^24); ABCD element chains by optics.MAX_SYSTEM_ELEMENTS (1024); Zernike by MAX_ZERNIKE_TERMS (512) / MAX_ZERNIKE_ORDER (40) / MAX_ZERNIKE_BASIS (2^25). This closes, fail-closed, the paths where a small argument triggers a huge internal allocation (measured: n_max=40 × 4096² needs 108 GB).

• Physically impossible states are refused too: a Stokes vector with degree of polarisation > 1, negative transmittance, negative intensity, and invalid Zernike indices such as n-|m| odd.

Detailed usage guide

• optics_imaging family guide

Background guides (the physics and conventions behind this op)

• dataset_conventions — Training-dataset conventions — COCO / YOLO / VOC and pitfalls in visual inspection

• mv_cameras — Industrial camera makers (sensor mapping, line scan / TDI)

• mv_illumination_practice — Lighting in practice — wavelength, polarisation, drive modes, ambient light, safety

• mv_image_sensors — Industrial image sensors (mainly current products)

• virtual_machine_vision — Virtual machine vision — enumerating the parameters and an object model

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• virtual_machine_vision — py -3.11 examples/virtual_machine_vision.py

Ops the type connects to (they accept table as input)

abcd_matrix · wavefront_stats · sfr_from_edge · paraxial_trace · seidel_coefficients · spot_stats · tolerance_analysis · wavefront_from_opd

Same category (scene)

scene_material · scene_plane · scene_sphere · scene_box · scene_cylinder · surface_defect · surface_finish · random_defects


*Provenance: optscene.py — OPTICS operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.