Lines and Arrows Annotation

Precisely annotate straight or curved objects with lines or polylines.

Highly Flexible Tools

Our lines and arrows tool allow our expert annotators to visualize point order when this is critical to your requirements.

Full Spectrum Labeling

Custom classifications, multiple attributes per instance, and hierarchical relationships are available to meet your exact ontology needs.

Use Cases

Object Detection
Object Localization
  • Detection and recognition of markings on road surfaces
  • Sports field lanes

Why Sama

For over a decade, hundreds of organizations, including over 25% of the Fortune 50, have relied on Sama to deliver secure, high-quality training data and model validation for machine learning.
Multi Level Quality Checks

Calculate quality against your preferred baseline using a combination of automation and human judgement—saving you time and money. Gold tasks and advanced scripting detects errors early in the pipeline.

Custom Analytics and Reporting

Get deep insights into your training data, including edge case alerts and analysis of the classes in your dataset. Our tailored reports help you prioritize and get your model to market faster.

ML-Powered Platform

Our agile platform is designed to meet your needs. Using machine learning and human-in-the-loop intelligence, we manage your most complex workflows, from data selection and annotation, up to model optimization.

Our API task creation, task management, and delivery functions allow clients to take full control of their training data pipeline.

High-Quality Annotated Data at Scale

Get in touch today to learn how Sama can solve your data annotation needs.