INTERACTIVE SECURITY SCREENING SYSTEM

摘要

An interactive security screening system (2) includes a main housing (4), a contact or palm pad (56) provided on the main housing and a sample sheet (55) positioned upon the contact pad. A sensor (57) is operatively connected to the contact pad to measure pressure applied to the contact pad during a sample collection process. A feedback system (112), operatively connected to the contact pad (56) and the sensor, provides the subject or screener with at least one of a visual signal and an audio signal to indicate whether requisite pressure was applied to the contact pad. A sample processing system (75) analyzes the sample collection sheet through series, parallel or image processing to determine whether the trace residue sample contains a threat residue. The screening system also employs a spatial recognition system (115) that focuses on particular portions of the sample collection sheet to increase overall system accuracy