LockNToad/cartolegend-rc4-modern

CartoLegend RC4-Modern

Visual RC docs · RC4 adapter · RC8 GIS files

Latest downloadable release: RC4-Modern reads point-symbol entries from full scanned map sheets and saves strict JSON.

{
  "label": "Diamond drill hole (2011)",
  "feature_type": "point",
  "symbol_bbox": [194, 412, 205, 425]
}

RC7 and RC8 are later research and GIS-delivery milestones. They are not new downloadable model versions, and this repository contains no RC7/RC8 weights. The separate RC8 dataset contains the public GIS delivery.

Public status

Item	Status	Public file
RC4 adapter	Released	LoRA adapter and evaluation files
RC4-Modern	Released here	Full-sheet point-symbol tools and supporting weights
RC7	Research milestone	Pictures and results in the visual docs
RC8	GIS delivery	12-sheet GeoJSON and GeoPackage dataset

Saved result

Input: one full scanned geologic-map sheet.

Output: point-symbol labels and pixel boxes in strict JSON. Common examples include wells, mines, sample locations and bedding marks.

Measured result

Frozen 74-sheet benchmark with 167 reviewed point-symbol entries:

Release	Matched	Recall	Precision	False positives on 32 empty sheets
Original RC4	52	0.311	0.500	0
RC4-Modern	77	0.461	0.621	0

Files

• models/point_detector_rc5c.safetensors — point detector weights
• models/c2_row_association.joblib — row association
• models/c4_fusion.joblib — calibrated fusion
• configs/ — released settings
• scripts/ — runnable tools
• RUNNING.md — commands and expected folder layout

The RC4 LoRA adapter is downloaded separately from the linked RC4 repository; it is not duplicated here.

Limits

• Full-sheet inputs; use the original RC4 setup for single legend crops.
• Point symbols only. It does not produce the RC8 polygon files.
• English-language USGS-style legends were evaluated; other map styles were not.
• Labels and boxes are proposals for review, not authoritative map data.

Apache-2.0 covers the released code and project weights. Source-map redistribution rights are not granted by this repository.