The target screener/FLIR system and its performance were reported at NAECON-77*. The target screener was designed and built by Honeywell for the Air Force in 1974. The system operated on imagery data from an AAS-27 sensor, detected man-made objects (MMOs) and cued the operator by displaying a symbol at each sector area containing MMOs. It achieved 92 percent probability of detection of MMOs and less than 3 percent probability of false alarm. In 1975-76 the target screener system was modified to accept FLIR data and for the first time detection and cueing of HMOs in FLIR imagery was demonstrated. The system achieved 95 percent probability of detection with 5 percent probability of false alarm. Last year the target screener was modified. The manual thresholds for the extraction of candidate MMOs were eliminated by autothreshold which is an automated technique to extract edges and bright signals. The modified system achieved a 91 percent probability of detection with 4.3 percent probability of false alarm. Secondary screener techniques were developed to screen targets based on true size and shape. The overall target screener system, including the secondary screener, achieved 88.5 percent probability of detection and 2 percent probability of false alarm.