🇺🇸 Privacy Policy — LJT System

Last updated: October 2025

LJT System (Long Jump Trainer System) is an educational and sports-oriented tool designed for the technical analysis of the long jump.
This project has academic, research, and training purposes. It was developed to bring computer vision technology closer to the field of athletics in an ethical, responsible, and accessible way.

1. Information Collection

LJT System does not request or require any personal information for its operation.
Users may voluntarily provide an email address in contact or collaboration forms.
This information is used exclusively to reply to inquiries or technical contributions and is never shared with third parties.

2. Video Processing

Videos used for motion analysis are transmitted temporarily to a secure processing server.
During analysis, the system calculates biomechanical variables using computer vision, without performing any personal identification or facial recognition.
After the analysis is completed, all video files are automatically deleted from the server, and no permanent copies are stored.

3. Use of the Generated Information

The data and results obtained (such as angles, times, or velocities) are generated solely for educational, scientific, and sports-related purposes.
They are not used for commercial or advertising purposes.
Users retain full ownership of their recordings and the results derived from them.

4. Consent and Responsible Use

It is recommended that every athlete or person recorded gives prior consent before using this tool.
LJT System promotes the ethical use of technology, respect for privacy, and prohibits using the analyses to spy on, compare, or distribute images of others without authorization.

5. Data Security

The project uses secure connections and controlled testing environments for data transmission and processing.
However, it is important to remember that no digital transmission can guarantee absolute security.
Users are encouraged to handle their videos responsibly.

6. External Links

The informational site may include links to educational or scientific resources hosted on external websites.
LJT System has no control over the content or privacy practices of those external sites and encourages users to review the privacy policies of any linked website before sharing information.

7. Changes to This Policy

The project owner may update this policy periodically to reflect improvements or adjustments in technological practices.
Any modifications will be published on this same page, with the date of the last update clearly stated.

8. Contact

For technical inquiries or educational collaboration related to the project, please use the contact form available on the official LJT System website.