Lines & Splines

Human-powered lines, polylines and splines for precise lane detection training for autonomous vehicles.

Use Cases

Images, Videos or 3D Cuboids

Scale prepares 3D cuboid training data from unannotated 2D images with our specialized tools and workforce.



Training security cameras to identify people with lines and splines empowers the next generation of automated security systems.

Self Driving Cars

Self Driving Cars

Our tools and workforce are trained to draw lines and lanes to power the future of autonomous vehicles.



Computer vision enables robotics to tackle new horizons in manufacturing, energy and health-care.

How It Works

We make it easy to start, optimize, and scale

Send image or sensor data through our simple API and receive segmented and labeled ground truth data.

"Annotate all the lines and circles of the field."

  'instruction': 'Annotate all the lines and
circles of the field.',
  'attachment': '',
  'objects_to_annotate': ['edges', 'borders'],
  'splines': false,
  'with_labels': true
}, (err, task) => {
    // do something with task
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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.

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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.

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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.

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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.

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Customer Success Engineering

Each customer is paired with a dedicated customer success engineer who ensures smooth integration and service.

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Built for scale

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

Ready for enterprise

Custom Annual Plans and SLAs

Get started today with on-demand, or chat with us about an enterprise plan.

Guaranteed Task Completion Time

Enterprise-grade SLAs include task completion times and tasks can be rapidly scaled up or down to meet your needs.

24/7 Development Support

Each enterprise customer is paired with a dedicated customer success manager who will ensure smooth integration and continued service.

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Cost Effective

Enterprise engagements include upfront and volume-based discounts, and is the most cost-effective solution for high-quality labels. Plus with Scale, there are no platform fees.

Quality Assurance

Best-In-Class Quality Choice

Industry leading quality datasets safe-guarded against ever-changing, messy data.

Super Human Quality

Our tasks are annotated by trained and qualified workers with additional layers of both human, data and machine learning driven quality control checks.

The resulting accuracy is consistently much higher than what a human or synthetic labeling approach can achieve independently, as measured against rigorous quality areas for each annotation.

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Another view of Scale's dashboard
Our Customers

Scale is Trusted by World Class Companies

We already support machine learning for some of the biggest autonomous vehicle and computer vision companies in the world.