Patent ID: 7418157

Claim:
A method for reading of optical indicia with a computerized image collection device, comprising the steps of: capturing a plurality of images from a same field of view containing an optical indicia; creating a single extended image from the plurality of captured images wherein the single extended image is the plurality of captured images sequentially connected together; applying a first symmetrical transform to a first image of the plurality of images of the single extended image to create a frequency-domain representation of the first image; applying a second symmetrical transform to a second image of the plurality of images of the single extended image to create a frequency-domain representation of the second image wherein the second symmetrical transform is different from the first symmetrical transform; identifying, in the transformed frequency domain representation of each transformed image, characteristic features that correspond to repetitive features found in the original non-transformed representation of each image wherein the original non-transformed representation is in the time or spatial domain; creating a first modified image by subjecting the frequency-domain representation of the first image to a first inverse transformation; creating a second modified image by subjecting the frequency-domain representation of the second image to a second inverse transformation; and combining the first modified image and the second modified image to create an improved representation of the optical indicia wherein combining the first modified image and the second modified image comprises identifying better quality portions of the first modified image and the second modified image and constructing from the better quality portions the improved representation of the optical indicia.