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Volleyball Bounding Box Labeling Specialist

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.

OpenTrain AI

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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About OpenTrain

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.

  • Apply through OpenTrain
  • 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.

  • Create a free OpenTrain account
  • Apply for the project
  • Complete the one-time assignment remotely

Ready to apply?

Create a free OpenTrain account and apply for this role in minutes.

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