FRACTIONAL CORRELATION

被引：141

作者：

MENDLOVIC, D

OZAKTAS, HM

LOHMANN, AW

机构：

[1] BILKENT UNIV, DEPT ELECT ENGN, BILKENT 06533, TURKEY

[2] UNIV ERLANGEN NURNBERG, W-8520 ERLANGEN, GERMANY

来源：

APPLIED OPTICS | 1995年 / 34卷 / 02期

关键词：

FOURIER OPTICS; OPTICAL INFORMATION PROCESSING; FRACTIONAL FOURIER TRANSFORMS; CORRELATION;

D O I：

10.1364/AO.34.000303

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Recently, optical interpretations of the fractional-Fourier-transform operator have been introduced. On the basis of this operator the fractional correlation operator is defined in two different ways that are both consistent with the definition of conventional correlation. Fractional correlation is not always a shift-invariant operation. This property leads to some new applications for fractional correlation as shift-variant image detection. A bulk-optics implementation of fractional correlation is suggested and demonstrated with computer simulations.

引用

页码：303 / 309

页数：7

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