Development and testing of a synchronous-scanning underwater imaging system capable of rapid two-dimensional frame imaging
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 onjunction with a galvanometrically driven raster scanner and an image-dissector tube receiver. The imager...
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| Veröffentlicht in: | Applied Optics 1993-07, Vol.32 (19), p.3520-3530 |
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| container_title | Applied Optics |
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| creator | KULP, T. J GARVIS, D KENNEDY, R SALMON, T COOPER, K |
| description | 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 onjunction 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 operating anges 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 several floodlight/silicon-intensified-target TV camera configurations, which produced a maximum imaging range of ∼2.6 AL. Also, an imaging configuration that used the raster-scanned beam of the laser as an illumination source for the sil n-intensified-target camera was tested. That system had an ultimate range of ∼ 4 AL. |
| doi_str_mv | 10.1364/AO.32.003520 |
| format | Article |
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J</creatorcontrib><creatorcontrib>GARVIS, D</creatorcontrib><creatorcontrib>KENNEDY, R</creatorcontrib><creatorcontrib>SALMON, T</creatorcontrib><creatorcontrib>COOPER, K</creatorcontrib><title>Development and testing of a synchronous-scanning underwater imaging system capable of rapid two-dimensional frame imaging</title><title>Applied Optics</title><addtitle>Appl Opt</addtitle><description>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 onjunction 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 operating anges 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 several floodlight/silicon-intensified-target TV camera configurations, which produced a maximum imaging range of ∼2.6 AL. Also, an imaging configuration that used the raster-scanned beam of the laser as an illumination source for the sil n-intensified-target camera was tested. 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J</au><au>GARVIS, D</au><au>KENNEDY, R</au><au>SALMON, T</au><au>COOPER, K</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Development and testing of a synchronous-scanning underwater imaging system capable of rapid two-dimensional frame imaging</atitle><jtitle>Applied Optics</jtitle><addtitle>Appl Opt</addtitle><date>1993-07-01</date><risdate>1993</risdate><volume>32</volume><issue>19</issue><spage>3520</spage><epage>3530</epage><pages>3520-3530</pages><issn>0003-6935</issn><issn>1559-128X</issn><eissn>1539-4522</eissn><coden>APOPAI</coden><abstract>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 onjunction 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 operating anges 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 several floodlight/silicon-intensified-target TV camera configurations, which produced a maximum imaging range of ∼2.6 AL. Also, an imaging configuration that used the raster-scanned beam of the laser as an illumination source for the sil n-intensified-target camera was tested. That system had an ultimate range of ∼ 4 AL.</abstract><cop>Washington, DC</cop><pub>Optical Society of America</pub><pmid>20829976</pmid><doi>10.1364/AO.32.003520</doi><tpages>11</tpages></addata></record> |
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| ispartof | Applied Optics, 1993-07, Vol.32 (19), p.3520-3530 |
| issn | 0003-6935 1559-128X 1539-4522 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_754029986 |
| source | Alma/SFX Local Collection; Optica Publishing Group Journals |
| subjects | 440600 - Optical Instrumentation- (1990-) DESIGN ELECTROMAGNETIC RADIATION Exact sciences and technology Fundamental areas of phenomenology (including applications) Image forming and processing IMAGE SCANNERS Imaging and optical processing LASER RADIATION LEVELS MILLIWATT POWER RANGE OPTICAL SYSTEMS Optics OTHER INSTRUMENTATION PERFORMANCE TESTING Physics POWER RANGE POWER RANGE 01-10 W POWER RANGE 10-100 W RADIATIONS RESOLUTION SPECTRA TESTING UNDERWATER VISIBLE SPECTRA WATT POWER RANGE |
| title | Development and testing of a synchronous-scanning underwater imaging system capable of rapid two-dimensional frame imaging |
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