Moving-object detection and recognition by using joint transform correlator

Wensheng Wang; Ye Zhang; Huiying Song; Yangxue Guo

doi:10.1117/12.483265

16 September 2002 Moving-object detection and recognition by using joint transform correlator

Wensheng Wang, Ye Zhang, Huiying Song, Yangxue Guo

Proceedings Volume 4929, Optical Information Processing Technology; (2002) https://doi.org/10.1117/12.483265
Event: Photonics Asia, 2002, Shanghai, China

Abstract

Optical image recognition is an important branch of optical information processing. It has extensive practical meaning and applied prospects. In recent years, joint transform correlator has taken place of matched filter, and pure optical experiments have developed into optoelectronic hybrid experiments. Optoelectronic Joint transform correlator has not only the optical advantages of parallel processing, large capacity and high speed, but also the advantages of computers, such as flexibility, programmability and accuracy. In this paper, electrically addressed liquid crystal displays (EALCD) are used as space light modulator (SLM), by the use of EALCD and CCD matrix camera which is controlled by microcomputer, and the optical Fourier transform (OFT) system, the moving object is detected and recognized. Because of using CCD matrix camera to detect the power spectrum of OFT, many kinds of digital processing algorithms can be adopted to improve signal noise ration (SNR), and to detect and recognize accurately moving objects.

Citation Download Citation

Wensheng Wang, Ye Zhang, Huiying Song, and Yangxue Guo "Moving-object detection and recognition by using joint transform correlator", Proc. SPIE 4929, Optical Information Processing Technology, (16 September 2002); https://doi.org/10.1117/12.483265

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