Label volleyballs actively used in rallies for a sports analytics project. This one-time, entry-level contract uses CVAT, pays $0.04 per label, and is open worldwide.
Image & Video Annotation
100% Remote Per task · $0.04/label
$0.04/label
Compensation
Worldwide
Eligibility
Entry
Experience
Nov 14, 2025
Posted
Open worldwide
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OpenTrain AI is the hiring and contracting organization for this project. OpenTrain is the leading platform for finding and building careers in AI training and data labeling, helping people discover projects where human judgment shapes modern artificial intelligence.
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Worldwide opportunity
Remote contract work
About AI Training and Image Annotation
AI training is the human side of building artificial intelligence. Contributors prepare examples that help computer vision systems understand images, including identifying objects and locating them precisely with bounding boxes.
This project supports sports analytics by teaching an AI system to recognize volleyballs during active rallies. Image annotation can be flexible, accessible work for people who want practical experience contributing to cutting-edge technology.
Work with image data
Draw bounding boxes around relevant objects
Help improve computer vision systems
The Role
OpenTrain AI is seeking an entry-level contractor to label volleyballs used during rallies in sports images. Volleyballs that are merely lying around should not be labeled.
Some volleyballs may appear very blurry because they are moving quickly. You should still make the best possible bounding-box annotation for each qualifying ball.
Role: Volleyball bounding box labeling
Data type: Images
Label type: Bounding boxes
Subject matter: Sports analytics
Experience level: Entry level
What You'll Do
You will review images and use CVAT to create bounding boxes around volleyballs that are actively involved in a rally. Careful attention is important when the ball is blurred or difficult to see.
Identify volleyballs being used in a rally
Exclude volleyballs that are just laying around
Draw the most accurate bounding box possible
Use CVAT labeling software
Complete the project as a one-time assignment
Requirements and Project Details
This is an entry-level project with no additional skills or requirements listed. The work is available worldwide and requires English. There is no ongoing commitment after the one-time assignment.
English required
Open worldwide
Less than 20 hours per week
Part-time contractor engagement
One-time project with no ongoing commitment
Payment: $0.04 per label
No additional requirements listed
How to Apply
Create a free OpenTrain account and apply through OpenTrain AI. If selected, you can review the project details and complete the assigned image-labeling work remotely using CVAT.
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