dc.contributor.author | Shor, Eric | en_US |
dc.contributor.author | Salvaggio, Carl | en_US |
dc.contributor.author | Schott, John | en_US |
dc.date.accessioned | 2007-07-05T15:45:58Z | en_US |
dc.date.available | 2007-07-05T15:45:58Z | en_US |
dc.date.issued | 1990-11 | en_US |
dc.identifier.citation | Infrared Technology XVI 1341 (1990) 68-79 | en_US |
dc.identifier.issn | 0277-786X | en_US |
dc.identifier.uri | http://hdl.handle.net/1850/4357 | en_US |
dc.description | RIT community members may access full-text via RIT Libraries licensed databases: http://library.rit.edu/databases/ | |
dc.description.abstract | A technique for longwave infrared (LWIR) synthetic image generation (510) is shown
which yields improved radiomeiric accuracy in the 8-14 .tm bandpass. This process uses a
modified LOWTRAN 6 atmospheric transmission/upwelled radiance code and computer
graphics ray-tracing techniques. A scene is created by placing faceted objects into world
coordinates with rotation, translation, and scaling parameters. Each facet is assigned a
material index and temperature. The material index points to optical properties for that
material. The modified LOWTRAN 6 code incorporates sensor response function when
computing tables of the atmospheric transmission and upwelled and downwelled radiances.
A ray-traced image is then generated. A final synthetic LWIR scene is generated to
geometrically match an actual acquired scene so that radiometric comparisons can be made. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | The International Society for Optical Engineering (SPIE) | en_US |
dc.relation.ispartofseries | vol. 1341 | en_US |
dc.title | Three-dimensional longwave infrared synthetic image generation incorporating angular emissivity effects using ray-tracing techniques | en_US |
dc.type | Article | en_US |
dc.identifier.url | http://dx.doi.org/10.1117/12.23080 | |