project_point_hom_mat3d — CALIB `project` op

• Data kinds: points → keypoints

• Call: import fullseye as fs; fs.ledger.project_point_hom_mat3d(points_3d, hom_mat3d) (to call the implementation directly, import calib; calib.project_point_hom_mat3d(points_3d, hom_mat3d); from the registry, opscalib.get("project_point_hom_mat3d"))

• HALCON equivalent: project_point_hom_mat3d (the HALCON reference is a useful guide to its meaning and parameters)

• GPU: none (CPU reference implementation only)

Usage

Projects 3-D points with a 4x4 or 3x4 projection matrix P=K[R|t] and returns pixels (row, col) (project_point_hom_mat3d).

> The detailed description below is the original text — the summary and the headings are translated.

project_3d_point と同じ (row, col) 規約(2026-09-02 以前は (x, y) を返しており兄弟 API と食い違っていた)。

Detailed usage guide

• camera_calibration family guide

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• (none yet)

Ops the type connects to (they accept `keypoints` as input)

image_to_world_plane · camera_calibration · camera_calibration_lm · stereo_calibration_lm · vector_to_rigid · vector_to_similarity · hom_vector_to_proj_hom_mat2d

Same category (`project`)

project_3d_point · project_hom_point_hom_mat3d

*Provenance: calib.py — CALIB operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

project_point_hom_mat3d — CALIB project op