SYSTEM AND METHOD FOR OBTAINING IMAGES WITH OFFSET UTILIZED FOR ENHANCED EDGE RESOLUTION

A method in a machine vision inspection system for obtaining two images of a workpiece with a desired sub-pixel offset between the images. The images are acquired using a fast multiple image acquisition mode of operation of a camera in the machine vision inspection system. In various implementations, the method includes removing the offset between the images such that the workpiece is congruent in the images and combining the congruent image data. The combined image data has a resolution better than that allowed by the native resolution of a camera that acquires images in the machine vision inspection system. The method may be implemented in an edge feature video tool for measuring edge features on the workpiece. The motion direction utilized for obtaining the two images may be made to be transverse to the edge direction of an edge that is being measured.