Abstract: A method and means for positively identifying and locating a plurality of ving test targets during a test of Automatic Target Recognition (ATR) equipment. The targets are identified by attached unique narrow band unmodulated visible light sources and are located by the type of video signal they generate in a synchronously filtered black and white video camera.

Abstract: A water saving device for a flush tank includes a floating body, a guide track on which the floating body is slidably mounted by a bracket, and a clip mounted to the guide track for snap fitting around a standpipe of the tank. The guide track is positioned so that the body is substantially directly above a flush valve of the tank, so that upon flushing the body will contact and forcibly close the flush valve to save water. The weight of the body is adjustable, as the body has an inner chamber for holding ballast and an inlet sealed by a removable plug. The guide track has breakoff segments at its bottom portion so that the track can be adapted to virtually any size tank. In another embodiment of the water saving device, the guide track is replaced by a small diameter tube through which the chain linking the flush valve and the flush lever attached to a flush handle is threaded. The body has a large tube attached to it which slidably fits over the standpipe.

Abstract: A method and apparatus for scoring the performance of a video automatic tet recognizer (ATR). A video scene signal supplied to the ATR is subtracted from the ATR video output signal to yield a difference signal indicative of targets identified by the ATR. This difference signal is compared to a ground truth signal (this ground truth signal contains all the true targets in the scene) to yield a score of ATR performance.