Medical image annotation 
at unprecedented speed and quality

Label scientific and biomedical data like the best, with Centaur Labs - the biomedical data labeling experts.

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We work with organizations at the forefront of AI.

Eko
Eko
Memorial Sloan Kettering Cancer Center
Brigham and Women's Hospital
Brigham and Women's Hospital
Volastra
Massachussetts General Hospital
Volastra

The best way to label healthcare data

Fast

thousands of medical doctors for skilled annotation

High quality

Research backed annotation MeTHODOLOGY AND 

Data-driven

Understand confidence levels on a per label basis

Easy

ON DEMAND CAPACITY AND 

177MM
total labels completed
2MM
Labels completed per week
58,000+
subject matter experts

Medical image annotation experts

We support a range of medical imaging modalities and task types.

Medical image types

Digital pathology
Lung ultrasound
Retinal
Chest X-Ray
Dermoscopic
Your data
...And more

Supported annotation tasks

Classification
Polygon
Mask
Box
Line
Circle
Dot
Centroid

How Centaur Labs labels medical images

Unlock scalable annotation by leveraging the forces of collective intelligence, competition, gamification, performance incentives and quality management

1

Quality-incentivized network of skilled data labelers

58,000 global labeling network

Composed of medical trainees and healthcare professionals

Compensated only when they produce high quality labels

2

Mobile medical data labeling competitions

Label on mobile devices

Biomedical data labeling competitions posed of medical trainees and healthcare professionals

Labelers highly motivated by competition and practice, in addition to cash prizes for quality labels

3

Label quality measurement and analytics

Labelers measured on reference dataset

Only labels that meet customer quality threshold are intelligently aggregated into a final superlabel

Access to an analytics dashboard to see confidence levels per label

Results you can trust

Faster and higher quality

Customer
Quality
.79 to .86 (F1)
.6 to .83 (F1)
.87 to .92 (AUC)
.73 to .87 (anon)
Faster
900 hrs saved
10x faster
20x faster
10x faster

“Centaur Labs annotated the first batch of data so quickly it seemed unreal. The speed of annotations we can now get is 10 fold - we can get 1,000 high quality annotations in one day.”

Fausto Milletari
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“We were able to use the disagreement between labelers to convert the categorical affect labels into a continuous metric we’re calling the affect rating. That’s ultimately the training data we used and it was only possible because of the 20+ opinions we could gather from Centaur Labs on each piece of our data.”

Dr. Jason Shumake
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Why healthcare AI teams trust Centaur Labs

speed & Scale

Access millions of annotations weekly from a network of thousands of medical experts, taking models from exploratory analysis to deployment in weeks, not months.

Quality by design

Experience how label quality is built into the Centaur Labs system, with frequent performance measurement and pay-for-performance incentives.

Advanced dataset insights

Leverage more reliable statistical information to inform your algorithm training plan.

Advanced dataset insights

Worry less with leading privacy and security capabilities.

health data focused

Lean on our expertise as the only annotation company focused on health, biological and scientific data.

multimodal

From pathology slides to surgical video to unstructured clinical notes, get all of your annotation needs in one single platform.