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Data Services

Landmark Annotation

Ordered keypoints for pose, facial geometry, and structural features, where relative position carries the signal.

Landmark Annotation

Overview

Keypoint work depends on annotators applying the same anatomical or structural definition every time. Consistency between annotators matters more here than in any other annotation type.

We calibrate against a reference set and measure inter-annotator agreement before releasing volume work.

What you receive

  • Annotated dataset in your training format
  • Written annotation guidelines
  • Quality report with agreement metrics
  • Sample batch for sign-off before volume

Typical stack

  • CVAT
  • Label Studio
  • COCO
  • YOLO
  • Pascal VOC
  • Python

Capabilities

What this covers in practice

01

Written guidelines before volume

Class definitions, edge cases, and rejection criteria agreed and documented before bulk work begins.

02

Calibrated annotator teams

Annotators calibrated against a reference set, with agreement measured before they join a project.

03

Independent review pass

A second annotator reviews sampled output, with rework triggered on defined error thresholds.

04

Delivery in your format

COCO, YOLO, Pascal VOC, or a custom schema - exported to match your existing training pipeline.

Related

Also under Data Services

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Want to talk through a landmark annotation project?

Send us the shape of the problem and we'll come back with a scoped approach, a timeline, and an honest read on what's achievable.