New scheme for image edge detection using the switching mechanism of nonlinear optical material

Nirmalya Pahari; Sourangshu Mukhopadhyay

doi:10.1117/1.2179806

1 March 2006 New scheme for image edge detection using the switching mechanism of nonlinear optical material

Nirmalya Pahari, Sourangshu Mukhopadhyay

Author Affiliations +

Optical Engineering, Vol. 45, Issue 3, 037003 (March 2006). https://doi.org/10.1117/1.2179806

Abstract

The limitations of electronics in conducting parallel arithmetic, algebraic, and logic processing are well known. Very high-speed (terahertz) performance cannot be expected in conventional electronic mechanisms. To achieve such performance we can introduce optics instead of electronics for information processing, computing, and data handling. Nonlinear optical material (NOM) is a successful candidate in this regard to play a major role in the domain of optically controlled switching systems. The character of some NOMs is such as to reflect the probe beam in the presence of two read beams (or pump beams) exciting the material from opposite directions, using the principle of four-wave mixing. In image processing, edge extraction from an image is an important and essential task. Several optical methods of digital image processing are used for properly evaluating the image edges. We propose here a new method of image edge detection, extraction, and enhancement by use of AND-based switching operations with NOM. In this process we have used the optically inverted image of a supplied image. This can be obtained by the EXOR switching operation of the NOM.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Nirmalya Pahari and Sourangshu Mukhopadhyay "New scheme for image edge detection using the switching mechanism of nonlinear optical material," Optical Engineering 45(3), 037003 (1 March 2006). https://doi.org/10.1117/1.2179806

Published: 1 March 2006

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