typed op• 数据种类:lightfield → image
• 调用:fullseye.apply(img, "tb_lf_epi", a=0.5, b=0.5)(2-D 的模型是一张图 + 两个标量旋钮 a,b∈[0,1])
*无图: 该算子以 lightfield 为输入。从图像开始的 Studio 程序无法到达该类型，请参见下方的可运行示例。*
极平面图像——直线斜率即视差的切片。
> 以下的详细说明为原文 —— 摘要与标题已翻译。
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.
Typed bridge of the lightfield op `lf_epi into the 2-D evolution registry: the same implementation, called under the op(v, a, b) convention. This op has no tunable parameter; a and b` are unused.
• 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。
• (暂无)
image 作为输入)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
typed)tb_points_to_voxel · tb_estimate_point_normals · tb_iss_keypoints · tb_angle_3points · tb_project_points · tb_render_point_depth · tb_statistical_outlier_removal · tb_radius_outlier_removal
*Provenance: ops.py — 2D 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.