lf_disparity_to_depth — LIGHTFIELD `depth` op

• 数据种类:image2d → depth

• 调用:import lightfield; lightfield.lf_disparity_to_depth(slope, focal_px=1000.0, baseline=1.0, *, far_depth=None, min_slope=1e-06)(或 opslightfield.get("lf_disparity_to_depth"))

用法

斜率(每角度步的像素数)-> 度量深度,相机阵列模型。

> 以下的详细说明为原文 —— 摘要与标题已翻译。

For a rectified array of viewpoints spaced *baseline* apart with focal

length *focal_px* expressed in pixels of the sub-aperture image, a point

at distance `Z shifts by |s| = focal_px * baseline / Z` pixels per

step. Inverting: `Z = focal_px * baseline / |s|`, returned in whatever

length unit *baseline* was given in (mm in, mm out).

Only `|s|` enters, deliberately. The *sign* of the slope says which side of

the focal plane a point is on, and which sign means "nearer" depends on how

the angular axis was oriented when the field was decoded — a convention this

module cannot know and refuses to guess. If your decode puts near objects at

negative slope, negate before calling.

*far_depth* is the fail-closed switch for the `s -> 0` pole (a point at

infinity has zero parallax). `None (default) makes any |s| < min_slope`

a `ValueError` naming how many pixels were affected — mask them, or pass an

explicit saturation distance as *far_depth* and get that value there. There

is no silent `inf` and no silent clamp.

Accepts a scalar or any array; returns the same shape (a scalar in gives a

0-d array out, so downstream code has one type to handle).

Raises `ValueError`: non-finite *slope* / *focal_px* / *baseline*, a

non-positive *focal_px* / *baseline* / *min_slope*, a negative *far_depth*,

and `|slope| < min_slope anywhere when *far_depth* is None`.

详细使用指南

• lightfield_depth 族使用指南

参考(示例数据・文献)

• 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。

可运行的示例(实际调用该算子并已验证的样例)

• lightfield_depth — py -3.11 examples/lightfield_depth.py

类型可衔接的下一个算子(可接受 `depth` 作为输入)

—

同类别(`depth`)

lf_depth_from_focus · lf_epi_slope · lf_all_in_focus · lf_plenoptic_design

*Provenance: lightfield.py — LIGHTFIELD 算子登记表。本条目由 tools/opdocs.py md 自动生成(请勿手工编辑)。*

lf_disparity_to_depth — LIGHTFIELD depth op

用法