tcspc op• データ種: counts → counts
• 呼び出し: import fullseye as fs; fs.ledger.tcspc_irf_convolve(hist, bin_ps=100.0, irf_fwhm_ps=200.0, truncate=4.0) (実装を直接呼ぶなら import photoncount; photoncount.tcspc_irf_convolve(hist, bin_ps=100.0, irf_fwhm_ps=200.0, truncate=4.0)、台帳から引くなら opsphoton.get("tcspc_irf_convolve"))
到達時刻ヒストグラムを装置応答(タイミングジッタ)でぼかす。
> 以下の詳細説明は原文のままです —— 要約と見出しは訳出済み。
The temporal analogue of a PSF convolution: a detector's timing uncertainty (SPAD jitter + TDC quantisation + laser pulse width) smears every arrival time by the instrument response function, here a Gaussian of full width at half maximum *irf_fwhm_ps*. The kernel is the exact bin integral of that Gaussian (erf differences), normalised to sum 1, truncated at +-truncate*sigma and forced to odd length so the convolution is centred.
Ground truth: convolving a unit spike in the middle of a 256-bin window with irf_fwhm_ps = 500 at bin_ps = 50 leaves the centroid exactly where it was (measured shift 0.0 ps — the kernel is symmetric) and gives a profile whose measured FWHM is 501.22 ps. That 0.24% excess over 500 is the *measurement*, not the kernel: tcspc_stats finds the half-maximum crossings by linear interpolation between bins, which slightly overestimates the width of a Gaussian.
Total counts are preserved *except* at the window edges, where mode='same' discards the tail that falls outside — measured loss exactly 0 for that centred spike, but a genuine loss for a pulse within a few sigma of either end.
Returns a float64 1-D histogram of the same length as *hist*.
Raises ValueError: negative, non-finite or non-1-D *hist*, a non-positive *bin_ps* / *irf_fwhm_ps* / *truncate*, an IRF sigma below 1e-3 bins (the kernel would be a delta and the op a no-op — say so instead of pretending to blur), and a kernel that would be longer than the MAX_BINS cap.
• photon_timeresolved ファミリ ガイド
• サンプルデータ カタログ(DL URL / ライセンス) — 2-D は skimage.data(BSD/public)+ 合成、3-D は実データ源(Stanford/PDS 等)の DL URL。
• 演算子の来歴・参考文献 — この op 族の元になった研究/手法の出典。
• アルゴリズムの正典(著者・年)と用途は上記ファミリ使い方ガイドに記載。
• photon_timeresolved — py -3.11 examples/photon_timeresolved.py
counts を入力に取れる)tcspc_coates_correct · tcspc_background_subtract · tcspc_stats · dtof_depth · lifetime_fit · lifetime_phasor
tcspc)tcspc_simulate · tcspc_background_subtract · tcspc_stats
*Provenance: photoncount.py — PHOTON 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.