Fast vision system

摘要

A method and apparatus for performing a vision process using a camera having a multi-focus lens having a lens field of view where the lens can be set at different focus positions the method comprising the steps of positioning at least one of the camera and an item to be imaged so the lens field of view is directed at the item to be imaged, obtaining a plurality of images where each image is obtained with the lens focus at a different position and after each image is obtained, attempting to perform the machine vision process using the image irrespective of whether or not the lens was focused when the image was obtained.

主权项

1. A method for performing a vision process using a camera having a multi-focus lens having a lens field of view where the lens can be set at different focus positions, the method comprising the steps of:
positioning at least one of the camera and a symbol to be imaged so the lens field of view is directed at the symbol to imaged; setting an image formation setting; obtaining a subset of images at each of a plurality of different lens focus positions where the image formation setting is different for each of the images obtained at each lens focus position; and after each image is obtained and while obtaining additional images, attempting to perform the vision process on the images.