EFFECTS OF INTENSITY THRESHOLDING ON THE POWER SPECTRUM OF LASER SPECKLE

被引：6

作者：

DUCHARME, AD ^{[1
]}

BOREMAN, GD ^{[1
]}

SNYDER, DR ^{[1
]}

机构：

[1] UNIV CENT FLORIDA, CTR RES & EDUC OPT & LASERS, DEPT ELECT ENGN, ORLANDO, FL 32816 USA

来源：

APPLIED OPTICS | 1994年 / 33卷 / 13期

关键词：

CHARGE-COUPLED DEVICES; LASER SPECKLE; MODULATION TRANSFER FUNCTION; POWER SPECTRUM; THRESHOLDING;

D O I：

10.1364/AO.33.002715

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Spatial-frequency filtering of laser-speckle patterns has proved to be a useful tool in the measurement of the modulation transfer function for focal plane arrays. Intensity thresholding of the laser-speckle patterns offers nearly an order of magnitude savings in digital storage space. The effect of this thresholding on the spatial-frequency power spectral density of the speckle pattern is investigated. An optimum threshold level is found that minimizes distortion of the power spectrum for the classes of speckle data used for modulation transfer function testing.

引用

页码：2715 / 2720

页数：6

共 7 条

[1]

ANDREWS LC, 1985, SPECIAL FUNCTIONS EN, P341

[2] CLIPPED CORRELATION-FUNCTIONS OF APERTURE INTEGRATED LASER SPECKLE [J].

BARAKAT, R .

APPLIED OPTICS, 1986, 25 (21) :3885-3888

[3] METHOD FOR MEASURING MODULATION TRANSFER-FUNCTION OF CHARGE-COUPLED-DEVICES USING LASER SPECKLE [J].

BOREMAN, G ;

DERENIAK, EL .

OPTICAL ENGINEERING, 1986, 25 (01) :148-150

[4]

Cooper GR, 1971, PROBABILISTIC METHOD, P253

[5]

GOODMAN J, 1975, LASER SPECKLE RELATE, P35

[6] SOME EFFECTS OF TARGET-INDUCED SCINTILLATION ON OPTICAL RADAR PERFORMANCE [J].

GOODMAN, JW .

PROCEEDINGS OF THE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, 1965, 53 (11) :1688-&

[7] MODULATION TRANSFER-FUNCTION TESTING OF DETECTOR ARRAYS USING NARROW-BAND LASER SPECKLE [J].

SENSIPER, M ;

BOREMAN, GD ;

DUCHARME, AD ;

SNYDER, DR .

OPTICAL ENGINEERING, 1993, 32 (02) :395-400

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