Question 1

What types of satellite imagery annotators can I hire on OpenTrain?

Accepted Answer

You can hire remote sensing annotators for precision labeling, GIS specialists for QA and review, annotation leads for guideline development and calibration, and domain SMEs for agriculture, forestry, disaster response, maritime, and other specialized areas. Post a job describing your needs and receive proposals from specialists with relevant experience.

Question 2

What annotation tasks can specialists perform?

Accepted Answer

Specialists can perform building footprint extraction, road network digitization, land use and land cover classification, object detection labeling, semantic segmentation, change detection annotation, damage assessment, and multi-temporal labeling. You define the class definitions, annotation standards, and output formats in your job post.

Question 3

How do annotators access my imagery and platform?

Accepted Answer

Annotators work inside your environment. You control access by inviting them to your labeling tool, GIS software, or internal platform. OpenTrain does not require access to your imagery or systems. Most teams use project-based permissions, and annotators can sign NDAs or complete security reviews before onboarding.

Question 4

What deliverables will I receive from an annotation project?

Accepted Answer

Typical deliverables include polygon annotations, bounding boxes, pixel masks, polylines, and attribute labels in your preferred format (GeoJSON, Shapefile, COCO, Pascal VOC, or custom). You also receive QA review passes and consistency checks across tiles and time periods. You define the deliverable format and quality standards in your job post.

Question 5

How much does it cost to hire satellite imagery annotators on OpenTrain?

Accepted Answer

You set your own rates and negotiate directly with specialists. Rates vary by task complexity, precision requirements, and domain expertise. General annotators typically charge less than GIS specialists or domain SMEs. OpenTrain charges a platform fee on top of what you pay specialists. Contact us for volume pricing on large projects.

Question 6

What if I need a fully managed annotation program?

Accepted Answer

Our managed service handles everything: team assembly, onboarding, guideline development, calibration sets, QA passes, and delivery of mapping-grade labels. We manage the annotators so you can focus on your models. Ideal for large-scale mapping projects, time-sensitive disaster response, or teams without internal annotation ops. Contact us for a managed service quote.

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