Image Annotation

Precision Image Annotation for Computer Vision at Scale

From bounding boxes to pixel-perfect semantic segmentation, Centric Labs delivers the image annotation quality that production computer vision systems demand. Our teams annotate millions of images per month across medical imaging, autonomous driving, retail analytics, satellite imagery, and industrial inspection — with 98 percent or higher accuracy guaranteed. Every image is annotated by trained specialists using your taxonomy, reviewed through our multi-stage QA pipeline, and delivered in your preferred format.

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Every Image Annotation Method Your Models Need

We support the complete range of image annotation techniques: bounding box annotation for object detection, polygon annotation for irregular shapes and precise boundaries, semantic segmentation for pixel-level classification, instance segmentation for distinguishing individual objects, keypoint and landmark annotation for pose estimation and facial recognition, and polyline annotation for lane detection and boundary mapping. Each technique is optimized for speed and accuracy using our AI-assisted pre-labeling pipeline.

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What you get

  • Dedicated managed teams, no anonymous crowd
  • Multi-stage QA with measurable SLAs
  • Secure workflows designed for enterprise data
  • Fast pilots with clear success criteria

Image Annotation Expertise Across Critical Industries

Our image annotation teams are trained for domain-specific requirements across autonomous vehicles with sensor-calibrated bounding boxes and lane annotations, healthcare and medical imaging including radiology, pathology, and surgical planning, satellite and geospatial imagery for mapping, environmental monitoring, and defense, retail with product recognition, shelf analytics, and visual search, manufacturing with defect detection, quality inspection, and robotic guidance, and agriculture with crop health, pest detection, and yield estimation.

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What you get

  • Dedicated managed teams, no anonymous crowd
  • Multi-stage QA with measurable SLAs
  • Secure workflows designed for enterprise data
  • Fast pilots with clear success criteria

Quality Architecture for Pixel-Level Precision

Our image annotation quality process includes consensus labeling where multiple annotators label the same image independently, inter-annotator agreement measurement with automatic flagging of disagreements, AI-assisted validation against annotation guidelines, senior reviewer audit on random and edge-case samples, and client-facing quality dashboards with real-time accuracy metrics. We deliver not just labeled images but annotated datasets with full quality documentation.

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What you get

  • Dedicated managed teams, no anonymous crowd
  • Multi-stage QA with measurable SLAs
  • Secure workflows designed for enterprise data
  • Fast pilots with clear success criteria

See Our Annotation Quality on Your Own Data

Send us a sample of your images. We will annotate them using your guidelines and return them within 48 hours — completely free. Judge our quality before you commit.

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What you get

  • Dedicated managed teams, no anonymous crowd
  • Multi-stage QA with measurable SLAs
  • Secure workflows designed for enterprise data
  • Fast pilots with clear success criteria
Explore more services

Image Annotation

Bounding boxes, segmentation, keypoints and OCR labeling.

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Video Annotation

Tracking, temporal events, and action labeling at scale.

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Text & NLP Annotation

NER, classification, intent, and instruction datasets.

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LLM Training Data

Fine-tuning corpora, preference pairs, and eval sets.

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RLHF & Human Feedback

Preference ranking, safety, and alignment pipelines.

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Synthetic Data Generation

Fill gaps in rare classes and edge cases safely.

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Next step

Ready to validate quality and security in a pilot?

We will scope a small, measurable dataset, define acceptance criteria, and stand up a managed team fast.