Nonzero-order joint transform correlator

被引：95

作者：

Li, CT ^{[1
]}

Yin, SZ ^{[1
]}

Yu, FTS ^{[1
]}

机构：

[1] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA

来源：

OPTICAL ENGINEERING | 1998年 / 37卷 / 01期

关键词：

recognition techniques; zero-order joint transform power spectrum; nonzero-order joint transform correlator; zero-order diffraction;

D O I：

10.1117/1.601856

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A simple method of removing the zero order in a joint transform power spectrum, i.e., using the nonzero-order joint transform power spectrum (NOJTPS), is discussed. We show that the nonzero-order joint transform correlator (NOJTC) performs better than the conventional joint transform correlator (CJTC). In short, the NOJTC offers high detection efficiency, better input pixel utilization, and avoidance of false alarms due to multitarget intermodulation. Simulated and experimental demonstrations are provided. (C) 1998 Society of Photo-Optical Instrumentation Engineers. [S0091-3286(98)01601-8].

引用

页码：58 / 65

页数：8

共 15 条

[1] FRINGE-ADJUSTED JOINT TRANSFORM CORRELATION [J].

ALAM, MS ;

KARIM, MA .

APPLIED OPTICS, 1993, 32 (23) :4344-4350

[2] REMOVAL OF INTRA-CLASS ASSOCIATIONS IN JOINT TRANSFORM POWER SPECTRUM [J].

CHENG, F ;

ANDRES, P ;

YU, FTS .

OPTICS COMMUNICATIONS, 1993, 99 (1-2) :7-12

[3] PERFORMANCE-CHARACTERISTICS OF AN OPTICALLY ADDRESSED FERROELECTRIC LIQUID-CRYSTAL SPATIAL LIGHT-MODULATOR [J].

HUDSON, TD ;

WORCESTER, RK ;

GREGORY, DA .

APPLIED OPTICS, 1991, 30 (20) :2867-2872

[4] ILLUMINATION-INDEPENDENT HIGH-EFFICIENCY JOINT TRANSFORM CORRELATOR [J].

JUTAMULIA, S ;

STORTI, GM ;

GREGORY, DA ;

KIRSCH, JC .

APPLIED OPTICS, 1991, 30 (29) :4173-4175

[5] SIMULATED ANNEALING ALGORITHM FOR BINARY PHASE ONLY FILTERS IN PATTERN-CLASSIFICATION [J].

KIM, MS ;

GUEST, CC .

APPLIED OPTICS, 1990, 29 (08) :1203-1208

[6] JOINT-TRANSFORM CORRELATOR IMPROVED BY MEANS OF THE FREQUENCY-SELECTIVE TECHNIQUE [J].

KUO, CJ .

OPTICAL ENGINEERING, 1994, 33 (02) :522-527

[7] Performance of quantized composite filters in a joint transform correlator [J].

Li, CT ;

Lu, MZ ;

Yin, SZ ;

Yu, FTS ;

Hudson, TD ;

McMillen, DK .

OPTICAL ENGINEERING, 1996, 35 (08) :2218-2226

[8] Implementation of a non-zero-order joint-transform correlator by use of phase-shifting techniques [J].

Lu, GW ;

Zhang, Z ;

Wu, SD ;

Yu, FTS .

APPLIED OPTICS, 1997, 36 (02) :470-483

[9]

VANDERLUGT A, 1964, IEEE T INFORM THEORY, V10, P139

[10]

WANG RK, 1997, OSA ANN M

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