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AI AnnotationRoboticsContinuous programme

Annotated 1.2M images for a perception model

An autonomous robotics startup

A continuous semantic-segmentation pipeline at 1.2M-image scale with weekly delivery, gold-set calibration, and inter-annotator agreement tracking — production-grade training data on a release cadence.

1.2M
Images labeled
+62%
Throughput
0.93
IAA score

Challenge

What we walked into.

Their perception team needed clean, consistent labels at a scale and cadence that an in-house team couldn't sustain. Throughput was capping the rate at which they could iterate on the model, and quality drift between batches was hurting eval scores.

What we did

The work, step by step.

  1. Designed a labelling ontology and gold-set in collaboration with the model team, used to calibrate every annotator before they touched real data

  2. Ran a continuous semantic-segmentation pipeline at 1.2M-image scale with weekly delivery

  3. Tracked inter-annotator agreement per class and shipped a QA report alongside every batch

  4. Tuned guidelines mid-programme based on model-error analysis, closing the loop between data and predictions

Results

What it shipped.

Outcomes measured against the brief we agreed up front, not vanity metrics.

  • Images labeled
    1.2M
  • Throughput
    +62%
  • IAA score
    0.93

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