DEVELOPMENT AND TESTING OF A SYNCHRONOUS-SCANNING UNDERWATER IMAGING-SYSTEM CAPABLE OF RAPID 2-DIMENSIONAL FRAME IMAGING

被引：34

作者：

KULP, TJ ^{[1
]}

GARVIS, D ^{[1
]}

KENNEDY, R ^{[1
]}

SALMON, T ^{[1
]}

COOPER, K ^{[1
]}

机构：

[1] USN, OFF SALVAGE & DIVING, SEA SYST COMMAND, WASHINGTON, DC 20362 USA

来源：

APPLIED OPTICS | 1993年 / 32卷 / 19期

关键词：

D O I：

10.1364/AO.32.003520

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The design and construction of a synchronous-scanning underwater imaging system capable of rapid two-dimensional scanning are described. The imager employs a 7-W, all-lines, argon-ion laser in conjunction with a galvanometrically driven raster scanner and an image-dissector tube receiver. The imager is capable of directly generating real-time RS-170 video imagery. The results of an in-water test of the imaging system, in which a high-contrast imaging test pattern was imaged, demonstrate opereting ranges of up to 4 attenuation lengths (AL) when the test was run at real-time frame rates, ranges of 5. 1-5.5 AL when the system operated with an eight-frame running average, and ranges of 6.3 AL when a 128-frame running average was used. The system performance was compared with that of floodlight/silicon-intensified-target TV camera configurations, which produced a maximum imaging range of approximately 2.6 AL. Also, an imaging configuration that used the raster-scanned beam of the laser as an illumination source for the silicon-intensified-target camera was tested. That system had an ultimate range of approximately 4 AL.

引用

页码：3520 / 3530

页数：11

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