fullseye

fringe_multipath_phase_error — OPTICS light_transport op

使い方

Phase measured when a direct fringe phasor and a global phasor add: arg(a1 e^{iφ1} + a2 e^{iφ2}), its bias against φ1, and the worst case asin(a2/a1).

Phase shifting decodes the phase of the sum of every light path reaching the pixel (Gupta & Nayar 2012, eqs. 6–11): with a direct amplitude a1 at the true phase φ1 and a global phasor a2 e^{iφ2}, the decoded phase is arg(a1 e^{iφ1} + a2 e^{iφ2}) and the bias is atan2(r sin Δ, 1 + r cos Δ) with r = a2/a1, Δ = φ2 − φ1. Over all Δ its magnitude peaks at asin(r) when r < 1; for r >= 1 any bias up to π is possible.

Inputs broadcast (scalars or arrays; phases in radians).

Returns a dict (a table): phase (wrapped to (-π, π]), bias ((-π, π]), amplitude (|sum|), ratio (a2/a1) and worst_case (asin(min(r, 1)), π where r >= 1).

Raises ValueError: non-finite inputs, a negative amplitude or a zero direct amplitude, shapes that do not broadcast.

ファミリ共通の入力契約(fail-closed)

optics の全 op は入力を検証してから計算する(黙って通さない):

詳しい使い方ガイド

参考(サンプルデータ・文献)

実行できる例(この op を実際に呼ぶ検証済みサンプル)

型が繋がる次の op(table を入力に取れる)

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

同カテゴリ(light_transport)

groove_profile · form_factors_2d · transport_matrix_radiosity · high_frequency_patterns · render_transport · separate_direct_global · predict_fringe_phase_error · micro_phase_decode


Provenance: lighttransport.py — OPTICS operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。

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