run_bg_esti — MV tracking op

• Data kinds: table × image2d → table

• Call: import fullseye as fs; fs.ledger.run_bg_esti(model, image) (to call the implementation directly, import mvtrack; mvtrack.run_bg_esti(model, image); from the registry, opsmv.get("run_bg_esti"))

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

• GPU: none (CPU reference implementation only)

Usage

Update the background with one image and return the foreground region.

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

背景との差の絶対値が threshold を超える画素を前景にする。入力の model は書き換えず、更新後のモデルを model の鍵で返す。画素値は create_bg_esti と同じ [0, 1] の float (整数 dtype と範囲外は ValueError)。空の入力(image が 0 要素)は ValueError。

Args:

model: create_bg_esti の返り。

image: 現在の画像(モデルと同じ形)。

Returns:

model(更新後)と foreground(bool 配列)を持つ dict。

Detailed usage guide

• machine_vision_classics 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)

• machine_vision_tour — py -3.11 examples/machine_vision_tour.py

• poc_real_bg_kalman_tracking — py -3.11 examples/poc_real_bg_kalman_tracking.py

Ops the type connects to (they accept table as input)

map_image · rectify_to_world_plane · change_radial_distortion_image · find_ncc_models · give_bg_esti · update_bg_esti · classify_class_gmm · evaluate_class_gmm

Same category (tracking)

filter_kalman · create_bg_esti · give_bg_esti · update_bg_esti


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

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.