Sensor Fusion Annotation

All the data you need to build 3D perception using LiDAR, camera, and radar.

Supported Sensors

We provide support for all major sensors for 3D perception. The data we provide powers autonomous vehicles, drones, maps, and more.


Dense 3D scene understanding for high-fidelity perception.


Photo context for objects with sparse LIDAR points.


Sparse scene understanding for longer range detection.

How It Works

Simply send sensor data to our elegant API and receive impeccable ground truth data. We'll handle the rest.

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"Please label all cars, pedestrians, and cyclists in each frame."

  'instruction': 'Please label all cars, pedestrians, and
cyclists in each frame.',
  'labels': ['car', 'pedestrian', 'cyclist'],
  'meters_per_unit': 2.3,
  'max_distance_meters': 30
}, (err, task) => {
    // do something with task

Temporal Labeling

Our APIs accept sequences of temporally linked frames, allowing us to produce 3D tracks for detected objects. Use this data to train your perception models.

Comprehensive Label Support

We support a large and growing number of labels for 3D labeling, from cars and cyclists to construction cones and animals. Leverage our expertise.

All Sensors Welcome

We provide simple interfaces to send over LIDAR, camera, and radar to provide a comprehensive 3D scene. We aim to be the one interface for 3D perception.

“We @voyage can vouch for @scaleAPI - extremely helpful and awesome 3D annotations!”

Tarin ZiyaeeCo-Founder

“Scale is a critical part of our stack, providing both software & trained resources to label our LIDAR and camera data with extremely high quality. When the team comes to me with new projects, I’m always confident that Scale will meet our needs & timelines.”

Read Customer Case
Brandon MoakCTO & Co-Founder

Scale Helps You Move Faster

We combine humans with machine learning to provide a flexible and scalable solution for impeccable ground truth training data at low cost and lightning quick turn-around.

  • Integrated with Machine Learning

    We apply machine learning in a multitude of ways to make our workforce more efficient and ensure impeccable quality and accuracy.

  • Impeccable Quality

    We have built out sophisticated quality assurance processes with in-house specialists to ensure we only produce quality results even at large scales.

  • Powerful, Beautiful Interfaces

    Our optimized interfaces allow our Scalers to be accurate, productive, and successful while working with complex and unintuitive 3D data.

  • Customer QA

    Our customers get access to the same interfaces we use internally to be able to inspect and assure quality on our results. We make it easy to check our work.

  • Customer Success Engineering

    We pair our customers with a dedicated customer success engineer who ensures smooth integration and service for our customers.

  • Built for Scale

    We process millions of tasks each month and are built to rapidly scale up and down to meet your requirements.

Scale is trusted by World Class companies.

Our clients are among the most technologically forward autonomous vehicle companies. Our expertise and excellence allow our customers to build incredible technology powered with precise data.

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