Real-time joint transform correlator using compressed reference images

被引：14
|
作者：
Widjaja, J [1 ]
Suripon, U [1 ]
机构：
[1] Suranaree Univ Technol, Inst Sci, Nakhon Ratchasima 30000, Thailand
来源：
OPTICAL ENGINEERING | 2004年 / 43卷 / 08期
关键词：
joint transform correlator; optical pattern recognition; JPEG image compression; correlation performance;
D O I：
10.1117/1.1781665
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A real-time implementation of a joint transform correlator by using JPEG-compressed reference images is proposed in order to solve storage problems and improve the time response of automatic target recognition systems. The correlation performance is studied quantitatively by using two types of images with different spatial-frequency contents. The simulation results show that in comparison with the compressed high-spatial-frequency images, the joint transform correlator using the compressed low-spatial-frequency reference image offers better recognition performance in that it is robust to noise and contrast difference for a wide range of compression levels. (C) 2004 Society of Photo-Optical Instrumentation Engineers.
引用
收藏
页码：1737 / 1745
页数：9
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