Patent ID: 8284988

Claim:
An image acquisition and processing configuration to estimate the dimensions of a package, said configuration comprising: a primary image acquisition unit positioned at a primary acquisition location; a secondary image acquisition unit positioned at a secondary acquisition location which is offset from said primary acquisition location by a defined offset distance; a platform having a substantially horizontal top surface positioned substantially directly beneath said primary image acquisition unit such that said primary image acquisition unit is at a defined image acquisition height above said top surface of said platform; and a vision engine operatively connected to said image acquisition units and operable to: trigger said image acquisition units to acquire background images of said top surface of said platform and package images of a top surface of a package placed on said top surface of said platform, receive said acquired images from said image acquisition units, and process said received images to: generate a primary subtraction image and a secondary subtraction image, determine a spatial image shift between at least one spatially correlated common feature of said primary subtraction image and said secondary subtraction image, and determine an absolute height of said package using at least said spatial image shift and said image acquisition height.