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Analysis of Edge Detection in Bar Code Symbols: An Overview and Open Problems
Author
Source
Journal of Applied Mathematics
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-31, 31 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-09-19
Country of Publication
Egypt
No. of Pages
31
Main Subjects
Abstract EN
Accurate edge localization is essential in bar code decoding.
Since speckle noise is the most dominant form of noise in laser bar code scanners, it is important to fully understand its effects on edge detection.
Starting with the basic statistical properties of speckle patterns, we present stochastic analysis of speckle noise.
We derive the autocorrelation function and power spectral density (PSD) of the noise in terms of intensity distribution of the scanning beam.
We then study the signal-to-noise ratio for signals that result from scanning different configurations of edges.
Next, we consider statistical properties of edge localization error caused by speckle noise.
We show that the standard deviation of the error is determined by the PSD of the noise and relative positions of edges in a bar code symbol.
Based on the analysis presented here, we propose new criteria for system design.
American Psychological Association (APA)
Krešić-Jurić, Saša. 2012. Analysis of Edge Detection in Bar Code Symbols: An Overview and Open Problems. Journal of Applied Mathematics،Vol. 2012, no. 2012, pp.1-31.
https://search.emarefa.net/detail/BIM-993659
Modern Language Association (MLA)
Krešić-Jurić, Saša. Analysis of Edge Detection in Bar Code Symbols: An Overview and Open Problems. Journal of Applied Mathematics No. 2012 (2012), pp.1-31.
https://search.emarefa.net/detail/BIM-993659
American Medical Association (AMA)
Krešić-Jurić, Saša. Analysis of Edge Detection in Bar Code Symbols: An Overview and Open Problems. Journal of Applied Mathematics. 2012. Vol. 2012, no. 2012, pp.1-31.
https://search.emarefa.net/detail/BIM-993659
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-993659