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dc.contributorVirginia Tech
dc.contributor.authorAlmeida, S. P.
dc.contributor.authorEu, J. K. T.
dc.date.accessioned2014-04-04T15:12:29Z
dc.date.available2014-04-04T15:12:29Z
dc.date.issued1976-02
dc.identifier.citationSilverio P. Almeida and James Kim-Tzong Eu, "Water pollution monitoring using matched spatial filters," Appl. Opt. 15, 510-515 (1976). doi: 10.1364/ao.15.000510
dc.identifier.issn0003-6935
dc.identifier.urihttp://hdl.handle.net/10919/46975
dc.description.abstractPresented are some results obtained from the application of matched spatial filtering techniques to the identification of biological specimens called diatoms (i.e., water algae). A prototype semiautomatic optical processor has been developed that utilizes the Vander Lugt type complex spatial filters. We describe the optical filter averaging technique employed and discuss our semi in situ developing method for the filters. The advantage of this method with regards to the critical position requirements for time sharing optical filters is also presented. The filter holder is mounted on X, Y stages and precision positioned under the control of a PDP-11-40 computer.
dc.description.sponsorshipNational Science Foundation/RANN Division
dc.description.sponsorshipU.S. Army Medical Research and Development Command
dc.description.sponsorshipEnvironmental Protection Agency
dc.language.isoen_US
dc.publisherOptical Society of America
dc.titlewater-pollution monitoring using matched spatial filters
dc.typeArticle - Refereed
dc.identifier.urlhttp://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-15-2-510
dc.date.accessed2014-02-24
dc.title.serialApplied Optics
dc.identifier.doihttps://doi.org/10.1364/ao.15.000510


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