plenoptic op• Data kinds: table × table → table
• Call: import fullseye as fs; fs.ledger.plenoptic_capture(system, scene, *, pupil_samples=1, wavelengths=None, exposure_s=0.0001, boundary_tolerance_mm=None) (to call the implementation directly, import plenoptic; plenoptic.plenoptic_capture(system, scene, *, pupil_samples=1, wavelengths=None, exposure_s=0.0001, boundary_tolerance_mm=None); from the registry, opsoptics.get("plenoptic_capture"))
• GPU: none (CPU reference implementation only)
Trace a raw plenoptic frame and its white calibration image.
The return includes ground-truth pupil_uv and lenslet_index for every sensor pixel. pupil_samples is accepted for API symmetry; a sensor pixel already represents one angular sample and therefore must be 1.
Sign convention differs from a real camera. A pixel offset q from its lenslet centre is mapped to the pupil coordinate +q/(d/2) (d the microimage diameter). A physical lenslet with the sensor at its focal plane inverts the pupil: the pixel at +q sees the pupil at -q * D/b. So views decoded from this simulation run in the opposite pupil order to a real sensor's, and the refocus slope of the same object has the opposite sign (a near object has a positive slope here, a negative one on real data). Everything in this module, including plenoptic_refocus_depth, is consistent with the simulated convention; flip the slope sign (or reverse the angular axes) before converting real-sensor data. Not changed yet because no PoC compares against a real raw frame (2026-11-04).
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. Exception, declared: the u_map of bottle_fit_from_pattern takes pixels that could not be measured as NaN (infinity is still refused).
• 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. Exception, declared: bottle_background_map returns NaN in u_mm for pixels whose ray is unusable (total internal reflection and the like), together with a valid mask and the counts.
• 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.
• 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.
• plenoptic_capture_pipeline — py -3.11 examples/plenoptic_capture_pipeline.py
• poc_plenoptic_camera — py -3.11 examples/poc_plenoptic_camera.py
table as input)abcd_matrix · wavefront_stats · sfr_from_edge · paraxial_trace · seidel_coefficients · spot_stats · tolerance_analysis · wavefront_from_opd
plenoptic)mla_surface · plenoptic_system · plenoptic_mla_calibrate · plenoptic_decode · plenoptic_refocus_depth
*Provenance: plenoptic.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.