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Title: Self-registering spread-spectrum barcode method

Abstract

A novel spread spectrum barcode methodology is disclosed that allows a barcode to be read in its entirety even when a significant fraction or majority of the barcode is obscured. The barcode methodology makes use of registration or clocking information that is distributed along with the encoded user data across the barcode image. This registration information allows for the barcode image to be corrected for imaging distortion such as zoom, rotation, tilt, curvature, and perspective.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175119
Patent Number(s):
6814289
Application Number:
09/870,391
Assignee:
Sandia Corporation
Patent Classifications (CPCs):
G - PHYSICS G06 - COMPUTING G06K - RECOGNITION OF DATA
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
96 KNOWLEDGE MANAGEMENT AND PRESERVATION

Citation Formats

Cummings, Eric B., and Even Jr., William R. Self-registering spread-spectrum barcode method. United States: N. p., 2004. Web.
Cummings, Eric B., & Even Jr., William R. Self-registering spread-spectrum barcode method. United States.
Cummings, Eric B., and Even Jr., William R. Tue . "Self-registering spread-spectrum barcode method". United States. https://www.osti.gov/servlets/purl/1175119.
@article{osti_1175119,
title = {Self-registering spread-spectrum barcode method},
author = {Cummings, Eric B. and Even Jr., William R.},
abstractNote = {A novel spread spectrum barcode methodology is disclosed that allows a barcode to be read in its entirety even when a significant fraction or majority of the barcode is obscured. The barcode methodology makes use of registration or clocking information that is distributed along with the encoded user data across the barcode image. This registration information allows for the barcode image to be corrected for imaging distortion such as zoom, rotation, tilt, curvature, and perspective.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {11}
}

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Works referenced in this record:

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Optical encryption using a joint transform correlator architecture
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Securing Information with Optical Technologies
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Double random fractional Fourier-domain encoding for optical security
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Practical image encryption scheme by real‐valued data
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