Improved performance of scale-invariant pattern recognition using a combined Mellin radial harmonic function and wavelet transform

Yih-Shyang Cheng; Hui Chi Chen

doi:10.1117/1.2799534

1 October 2007 Improved performance of scale-invariant pattern recognition using a combined Mellin radial harmonic function and wavelet transform

Yih-Shyang Cheng, Hui Chi Chen

Author Affiliations +

Optical Engineering, Vol. 46, Issue 10, 107204 (October 2007). https://doi.org/10.1117/1.2799534

Abstract

By using a combination of the Mellin radial harmonic function and the Mexican-hat wavelet transform, scale- and shift-invariant pattern recognition is reported. Without preprocessing of the input object, this filter is capable of identifying over a wide allowable scale range of 0.25 to 1. The correlation peaks are sharp, and the peak intensity is fairly uniform, with a variance below 30%. Computer simulation is adopted to investigate the performance of the filter. Experimental results implemented using a photorefractive joint-transform correlator, including those obtained under white noise, are also presented.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Yih-Shyang Cheng and Hui Chi Chen "Improved performance of scale-invariant pattern recognition using a combined Mellin radial harmonic function and wavelet transform," Optical Engineering 46(10), 107204 (1 October 2007). https://doi.org/10.1117/1.2799534

Published: 1 October 2007

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available