Lines & Splines

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

Lines & Splines Annotation by a human with few lines of code.
Scalable, high quality data by API.

Use Cases

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

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

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

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"Please annotate lines over all of the lane lines in the street-level image."

  '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

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

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

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

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

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Oliver Cameron
Oliver CameronCofounder
Anantha Kancherla
Anantha KancherlaHead of Self Driving Software

“Scale’s outstanding agility, tooling, scalability and quality made them our preferred partner and the natural choice for the nuScenes project.”

Oscar Beijbom
Oscar BeijbomMachine Learning Lead
Read Customer Case
Brandon Moak
Brandon MoakChief Technology Officer

“Scale makes it easy to focus on developing leading self-driving technology rather than the operations of labeling data. The Scale platform provides the technology and operations to power our machine learning development and is our trusted training data solution.”

Jack Guo
Jack GuoSoftware Engineer
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