lf_disparity_to_depth — LIGHTFIELD `depth` op

• 資料種類:image2d → depth

• 呼叫: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(每角度步的像素數)-> 度量深度,相機陣列模型。

> 以下的詳細說明為原文 —— 摘要與標題已翻譯。

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`.

詳細使用指南

• lightfield_depth 族使用指南

參考(範例資料・文獻)

• 範例資料目錄(下載 URL / 授權) —— 2-D 用 skimage.data(BSD/公有領域)加合成圖,3-D 給出真實資料源(Stanford/PDS 等)的下載 URL。

• 運算子來歷與參考文獻 —— 該運算子族所依據的研究/方法出處。

• 演算法的正典(作者・年份)與用途見上面的族使用指南。

可執行的範例(實際呼叫該運算子並已驗證的樣例)

• lightfield_depth — py -3.11 examples/lightfield_depth.py

• poc_lightfield_depth — py -3.11 examples/poc_lightfield_depth.py

型別可銜接的下一個運算子(可接受 `depth` 作為輸入)

—

同類別(`depth`)

lf_depth_from_focus · lf_epi_slope · lf_all_in_focus · lf_plenoptic_design

*Provenance: lightfield.py — LIGHTFIELD 運算子登記表。本條目由 tools/opdocs.py md 自動產生(請勿手動編輯)。*

lf_disparity_to_depth — LIGHTFIELD depth op

用法