Imagine an airport where security screening is fast, seamless, and stress-free. Thanks to the collaboration between the Science and Technology Directorate (S&T) and the Transportation Security Administration (TSA), Advanced Imaging Technology (AIT) promises to revolutionize airport security while enhancing the passenger experience.
Transforming Airport Security with Advanced Imaging Technology
The TSA and S&T are working to improve airport security screening systems using High-Definition Advanced Imaging Technology (HD-AIT).
Tested at the Transportation Security Laboratory (TSL) in New Jersey, these cutting-edge systems aim to address growing passenger volumes while ensuring public safety.
What is HD-AIT?
HD-AIT uses millimeter waves, non-harmful radio waves that pass through fabrics to detect concealed objects, including non-metallic items traditional metal detectors might miss.
- Privacy Focused: Algorithms process the data without human review, displaying results on generic human images.
- Enhanced Detection: Identifies threats more accurately and reduces false alarms.
- Passenger-Friendly: Travelers may soon keep shoes, light jackets, and sweaters on during screening.

Improvements for Travelers and TSA
HD-AIT is being developed for seamless integration into existing security lanes, offering features such as:
- Faster screenings with reduced pat-downs.
- Walk-through capabilities with Real-Time AIT.
- Cost-effective retrofit kits for existing systems.
Innovative Additions: Shoe Scanners and Real-Time Panels
Shoe Scanners
- Functionality: Millimeter waves scan footwear, processing data in seconds without requiring passengers to remove their shoes.
- Future Integration: Could be built into floors for simultaneous shoe and body screening.
Real-Time AIT Panels
- Capability: Modular panels enable screening as passengers walk through, collecting high-resolution images at video rates.
- Potential Impact: Could lead to checkpoint-less screening, reducing wait times significantly.
Comparing HD-AIT Benefits
Feature | Current Systems | HD-AIT Enhancements |
---|---|---|
Detection Capability | Limited to metals | Detects metals and non-metallic threats |
Privacy Protection | Minimal | Algorithm-driven with no human review |
Passenger Comfort | Remove shoes/jackets | Keep light clothing and shoes on |
Screening Speed | Pause-and-pose systems | Real-time walkthrough screening |
Cost Efficiency | Full system replacements | Retrofit kits for existing systems |
Recognition and Progress
- Awards: The HD-AIT system and shoe scanner have received R&D 100 Awards for innovation in 2020 and 2024.
- Commercialization: Both technologies were licensed to Liberty Defense Holdings in 2021 for demonstration and deployment.

When Will Passengers See HD-AIT?
Operational use of HD-AIT systems is a few years away, but TSA plans to:
- Test shoe scanners with real passengers soon.
- Showcase technology at events like the 2025 Consumer Electronics Show. 7-10th January 2025.
Looking Ahead
The partnership between S&T and TSA is redefining airport security with innovative technologies that balance passenger convenience and safety.
As advancements like HD-AIT and Real-Time AIT become operational, the airport experience will transform into a more efficient and comfortable process.
Sources: THX News & Department of Science and Technology.