simulate op• 数据种类:depth → zscan
• 调用:import interferometry; interferometry.csi_stack_simulate(height_um, z_start_um=0.0, z_step_um=0.05, n_planes=241, wavelength_um=0.6, envelope_fwhm_um=2.8, envelope_sigma_um=None, bias=0.5, amplitude=0.4, reflectivity=None, noise=0.0, seed=0)(或 opsinterferometry.get("csi_stack_simulate"))
合成干涉显微镜记录的 `(Z, H, W)` 扫描堆栈。
> 以下的详细说明为原文 —— 摘要与标题已翻译。
The per-pixel version of :func:csi_signal_simulate: every pixel of the
*height_um* map gets its own coherence envelope centred on its own height, on
a shared scan grid. The scan axis is FIRST — a stack is what a camera
streams while the objective moves, one frame per plane — which is the same
layout as a `video (T, H, W) and *not* the (H, W, T)` of a
:func:photoncount.dtof_cube_simulate histogram cube.
That resemblance to `video` is not cosmetic and it is measured, not assumed:
handing a translating-grating clip to :func:csi_height_map does not
raise, it returns a height map (see the type note in :mod:opsinterferometry
for the numbers). The registry therefore declares a separate `zscan` type.
height_um: 2-D `(H, W)` map of true surface heights, in the scan's own
coordinate. Every height must lie inside the scan range.
reflectivity: optional `(H, W)` map of per-pixel fringe-amplitude scale
(>= 0). `None` = uniform 1. A pixel with reflectivity 0 has
no fringes at all and :func:csi_height_map will refuse it
rather than report the first plane.
(the remaining parameters are :func:csi_signal_simulate's, applied to every
pixel; `noise` is sampled once for the whole stack from *seed*.)
Returns a float64 `(n_planes, H, W)` stack.
Ground truth: with `noise=0, csi_height_map(stack, ..., mode="gaussian")`
returns *height_um* with an RMS error of 2.08e-06 um over a tilted plane
spanning 5.0-7.0 um of a 0-12 um scan, and the per-pixel result is bit-for-bit
identical to running :func:csi_peak_position on each column separately
(both pinned in the tests). Widening the same plane to 2.0-10.0 um degrades
that to 7.06e-03 um — envelope truncation at the scan ends, not the
estimator.
Raises `ValueError: everything :func:csi_signal_simulate` raises, plus
a non-2-D / empty *height_um*, a *reflectivity* that is negative or a
different shape, any height outside the scan range, and a stack over
:data:MAX_STACK_ELEMENTS (`n_planes*H*W` grows fast — 241 planes of
256x256 is 1.9x the cap). The element cap is applied before the float64
promotion of *height_um*, not after.
• 示例数据目录(下载 URL / 许可证) —— 2-D 用 skimage.data(BSD/公有领域)加合成图,3-D 给出真实数据源(Stanford/PDS 等)的下载 URL。
• 算子来历与参考文献 —— 该算子族所依据的研究/方法出处。
• 算法的正典(作者・年份)与用途见上面的族使用指南。
• coherence_scanning — py -3.11 examples/coherence_scanning.py
zscan 作为输入)csi_height_map · csi_contrast_map
simulate)csi_signal_simulate · chromatic_confocal_simulate
*Provenance: interferometry.py — INTERFEROMETRY 算子登记表。本条目由 tools/opdocs.py md 自动生成(请勿手工编辑)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.