fullseye

lf_epi — LIGHTFIELD views op

• データ種: lightfield → image2d
• 呼び出し: import fullseye as fs; fs.ledger.lf_epi(lf, axis='u', index=0, view=None) (実装を直接呼ぶなら import lightfield; lightfield.lf_epi(lf, axis='u', index=0, view=None)、台帳から引くなら opslightfield.get("lf_epi"))

使い方

Epipolar-plane image — the slice whose line slope is the disparity.

An EPI is what makes a light field different from a pile of photographs: fix one image row and one angular row, and every scene point traces a straight line whose gradient dx/du is exactly its slope s. Occlusion becomes one line crossing in front of another, which is why EPI methods handle it better than window matching.

• axis="u" (horizontal): fix v = view (default: the centre row, (V-1)//2) and image row y = index; returns E[u, x] of shape (U, W).
• axis="v" (vertical): fix u = view and image column x = index; returns E[v, y] of shape (V, H).

Raises ValueError: lf not a valid light field, unknown axis, index outside the spatial extent, view outside the angular extent.

詳しい使い方ガイド

• lightfield_depth ファミリ ガイド

参考(サンプルデータ・文献)

• 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。

実行できる例(この op を実際に呼ぶ検証済みサンプル)

• lightfield_depth — py -3.11 examples/lightfield_depth.py
• poc_lightfield_depth — py -3.11 examples/poc_lightfield_depth.py

型が繋がる次の op(image2d を入力に取れる)

lf_from_mla · lf_disparity_to_depth · lf_all_in_focus

同カテゴリ(views)

lf_subaperture · lf_center_view · lf_views

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Provenance: lightfield.py — LIGHTFIELD 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.

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