Passive Body Scanner
Description
Identify anomalies in body heat, assisting CBP officers to detect concealed weapons and contraband, allowing for efficient processing of travelers
Detailed example
This algorithm highlights areas on a person where potential objects may be blocking the subject's expected body heat and displays these areas on live video image, monitored by a CBP officer. The highlighted areas may show the locations of carried objects, which could be potential weapons or contraband.
AI / analytics pattern
Computer Vision: AI that processes and interprets visual data (e.g., images and videos).
Automation level / stage
c) Deployed – The use case is being actively authorized or utilized to support the functions or mission of an agency.
Expected benefit
PBS is intended to enhance situational awareness in pedestrian traveler processing to aid CBP officers in observing potentially dangerous objects or contraband in a timely manner and pursuant to CBP’s border search authority.
Controls / human review
ATO: Yes; PIA: https://www.dhs.gov/sites/default/files/publications/privacy-pia-cbp-017a-niisystemsprogrampedestriandetectionatrange-october2021.pdf
Data needed
All data used in training, validation, test and evaluation of the AI is Thruvision proprietary – no data from any external sources (including the Agency) is used. Approximately 25,000 images have been used for training the DynamicDETECT model. These training images were extracted from staged screening events recorded with Thruvision cameras using various actors, concealment items, item locations and clothing.