deflectometry op• Data kinds: none → table (an op determined by its arguments alone — it takes no image or data input)
• Call: import fullseye as fs; fs.ledger.deflectometry_sensitivity(rig=None, period_mm=10.0, n_steps=4, noise_sigma=0.004, fringe_amplitude=None, bits=8, diffuse_fraction=0.0) (to call the implementation directly, import deflectometry; deflectometry.deflectometry_sensitivity(rig=None, period_mm=10.0, n_steps=4, noise_sigma=0.004, fringe_amplitude=None, bits=8, diffuse_fraction=0.0); from the registry, opsspecular.get("deflectometry_sensitivity"))
Before measuring, give the smallest detectable slope, the height-slope ambiguity coefficient and the focus blur in closed form. → dict.
> The detailed description below is the original text — the summary and the headings are translated.
返す鍵(角度は rad、長さは mm):
• slope_pixel_bound —— 画面の画素ピッチ / (2d)。縞を使わず画面の画素を数えるときの傾きの刻み。
• phase_noise_rad —— N ステップの位相雑音 √(2/N)·σ / b。σ は画素の雑音(bits の量子化 1/(2^bits − 1)/√12 を 2 乗和で足す)、b は縞の振幅(既定 0.45·(1 − k_d)·|M|、M は面にピントのときの画面側の錯乱円 A·d/L の円板の MTF = deflectometry_render の既定と同じ条件。★初版は M を忘れていて、実測の位相雑音が閉形式の 1.12 倍に出た —— 内訳を追って直した)。
• fringe_amplitude —— 上で使った b。
• screen_noise_mm —— 画面の座標の雑音 周期·σ_φ / 2π。
• slope_noise_x / slope_noise_y —— σ_u / (2d) と σ_u / (2 d cos θ)(入射面内と直交方向)。
• height_slope_coupling —— 面が 1 mm ずれたときの見かけの傾き sin θ / d [rad/mm]。
• blur_screen_focus_surface_mm / blur_surface_focus_screen_mm —— 面にピントを合わせたときの画面側の錯乱円 A·d / L と、画面にピントを合わせたときの面側の錯乱円 A·d / (L + d)。
• contrast_focus_surface —— 面にピントのとき縞の振幅に掛かる円板の MTF。
Raises: ValueError —— 周期・振幅が正でない、N < 3、雑音が負、bits が 1〜16 の整数でも None でもない、k_d が [0, 1) の外、ぼけで縞が消える(MTF がちょうど 0)、rig が不正。
• specular_photometric family guide
• 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.
• poc_phase_measuring_deflectometry — py -3.11 examples/poc_phase_measuring_deflectometry.py
table as input)—
deflectometry)deflectometry_rig · deflectometry_screen_pattern · deflectometry_render · deflectometry_phase_to_slope · slope_to_curvature
*Provenance: deflectometry.py — SPECULAR 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.