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181: DAGM2007 -> T-B1 (unified SFT; viewer-friendly row groups)
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---
tags:
- smart-manufacturing
- sft
- industrial
- vision
license: other
pretty_name: "181"
extra_gated_fields:
Name: text
Affiliation: text
Intended use: text
extra_gated_prompt: >-
This dataset is released for **research use**. Access is reviewed and granted
**manually** by the maintainers. Please state your name, affiliation, and intended use.
---
# 181
Textured-surface weakly-supervised defect detection (10 classes; weak masks). Category **B**, task **T-B1**, in the unified Smart-Manufacturing SFT schema.
> The repository name is an internal task code. See **Provenance** below for the underlying dataset.
## Records
**16,100** records (test=8050 · train=8050). Pixel masks are embedded as a `mask` image column.
## Unified SFT schema
| field | type | meaning |
|---|---|---|
| `query` | str | the question / instruction (model input) |
| `image` | Image | the input image (bytes embedded) |
| `annot` | str | the answer — for this dataset: the plain-text image-level label `good` or `anomalous` (binary per texture class; the defect is unnamed). The WEAK elliptical segmentation `mask` is deferred localization GT, with seg info (`mask_path`, `defect_area_fraction`) in `metadata`; `metadata.category` is the texture class (Class1-10) — see **Task, mask & split** below |
| `reasoning` | null | no native CoT in these datasets |
| `cate` | "B" | SFT category |
| `task` | "T-xx" | unified task id |
| `metadata` | str (JSON) | split, provenance, `image_path`, `image_sha256` (dedup key) |
| `mask` | Image \| null | *(T-B1/T-B2 only)* the pixel ground-truth mask, bytes embedded |
| `masks` | list[Image] | *(D21 only)* multi-region masks |
## Task, mask & split
**What this is.** DAGM 2007 (Wieler & Hahn, *"Weakly Supervised Learning for Industrial Optical Inspection"*,
DAGM 2007 competition / Bosch) — 16,100 synthetic grayscale images across **10 statistically-textured surface
classes** (Class1-10). Each class carries a single (unnamed) defect type; most images are defect-free.
**Task & label.** Originally weakly-supervised image-level defect classification (defective vs defect-free), now
widely used for anomaly detection + weak localization. Per texture class the task is **binary**. An image is
labelled **anomalous** iff the source ships a `Label/<id>_label.PNG` mask for it (defect-free images have no
mask). `query` (our template) names the texture class and asks only whether it is **good** or **anomalous**;
`annot` is the plain-text answer `good` or `anomalous`. **The query does not ask for a mask.** `metadata.category`
records the texture class (Class1-10).
**Mask (WEAK label — deferred GT).** DAGM's masks are **weak labels**: a rough elliptical region around the defect
(0/255), **not pixel-precise**. Kept in the `mask` column as deferred localization GT (anomalous images only; good
= null); seg info (`mask_path`, `defect_area_fraction`) in `metadata`. Segmentation is deferred (a text model
can't emit a pixel mask).
**Split.** Official per-class `Train`/`Test` -> `train` (8,050) + `test` (8,050) = 16,100. Class1-6: 575 images
per split; Class7-10: 1,150 per split.
## Provenance
Underlying dataset: **DAGM2007**. Upstream license: **CC BY 4.0** (this card is `license: other`; respect the upstream terms). Converted read-only from the raw source into the unified schema; conversion script: `181/convert_d81.py`, published with `publish/push_to_hf.py`, both in [`AI4Manufacturing/forge_model`](https://github.com/AI4Manufacturing/forge_model).
## Overlap / de-duplication (§8)
None notable. Each record carries `metadata.image_sha256` so overlapping images can be kept entirely on one side of a train/eval split.