Distortion Test Targets are used to measure the level of image distortion within an imaging system for a wide variety of imaging applications. Distortion Test Targets are optical tools that are inserted into an imaging or optical system for measurement, analysis, or calibration. Distortion Test Targets are viewed through an imaging lens in order to identify the distortion error inherent within the lens. Distortion Test Targets feature a selection of precise shapes, lines, or dots that an imaging system focuses on to determine the accuracy of a system.
Using these targets, one can easily determine the precise amount of distortion present and back it out of measurements. The dot center can be located using blob (or centroid) analysis in measurement software. To accommodate the expanding variety of image analysis software and applications, we offer fixed frequency and variable frequency targets.