ATMOSPHERIC LIMITATIONS ON THE FIELD OF VIEW IN MULTIBAND AERIAL PHOTOGRAPHY
| dc.contributor.author | Cuneo, William J. Jr. | |
| dc.date.accessioned | 2016-12-14T21:00:58Z | |
| dc.date.available | 2016-12-14T21:00:58Z | |
| dc.date.issued | 1970-10-30 | |
| dc.identifier.uri | http://hdl.handle.net/10150/621660 | |
| dc.description | QC 351 A7 no. 60 | en |
| dc.description.abstract | The atmospheric transmission and airlight in three spectral bands as a function of an angle off nadir were calculated from radiometric measurements with cameras and film for a particular solar irradiance and atmosphere; the sun zenith angle was 49 °, the airpaths were from 15,000 ft m.s.l. to the surface at 1,900 ft on a clear day in Tucson, Arizona, and the azimuth was into the sun. The three spectral bands had peak transmissions at 430 nm (blue), 530 nm (green), and 800 nm (infrared). The statistics derived from numerous measurements show that a standard deviation of 2% can be attained in the relative radiances read out of multiband photography obtained with calibrated cameras and processed with carefully controlled sensitometry. In the blue and green bands, the atmospheric effect on contrast as a function of an angle off nadir became statistically noticeable at about 35° and 50 °, respectively. The standard deviations of the relative radiances measured in the blue and green bands were 3% and 2 %, respectively. The effect in the infrared band probably became significant at even larger angles; greater inaccuracy in the infrared band data precludes a more definitive statement. Also presented is a solution for an optimum ratio of playback lamp luminances for false color recombinations in two bands. | |
| dc.language.iso | en_US | en |
| dc.publisher | Optical Sciences Center, University of Arizona (Tucson, Arizona) | en |
| dc.relation.ispartofseries | Optical Sciences Technical Report 60 | en |
| dc.rights | Copyright © Arizona Board of Regents | |
| dc.subject | Optics. | en |
| dc.subject | Cameras | en |
| dc.subject | Aerial photography | en |
| dc.title | ATMOSPHERIC LIMITATIONS ON THE FIELD OF VIEW IN MULTIBAND AERIAL PHOTOGRAPHY | en_US |
| dc.type | Technical Report | en |
| dc.description.collectioninformation | This title from the Optical Sciences Technical Reports collection is made available by the College of Optical Sciences and the University Libraries, The University of Arizona. If you have questions about titles in this collection, please contact repository@u.library.arizona.edu. | |
| refterms.dateFOA | 2018-09-11T16:14:51Z | |
| html.description.abstract | The atmospheric transmission and airlight in three spectral bands as a function of an angle off nadir were calculated from radiometric measurements with cameras and film for a particular solar irradiance and atmosphere; the sun zenith angle was 49 °, the airpaths were from 15,000 ft m.s.l. to the surface at 1,900 ft on a clear day in Tucson, Arizona, and the azimuth was into the sun. The three spectral bands had peak transmissions at 430 nm (blue), 530 nm (green), and 800 nm (infrared). The statistics derived from numerous measurements show that a standard deviation of 2% can be attained in the relative radiances read out of multiband photography obtained with calibrated cameras and processed with carefully controlled sensitometry. In the blue and green bands, the atmospheric effect on contrast as a function of an angle off nadir became statistically noticeable at about 35° and 50 °, respectively. The standard deviations of the relative radiances measured in the blue and green bands were 3% and 2 %, respectively. The effect in the infrared band probably became significant at even larger angles; greater inaccuracy in the infrared band data precludes a more definitive statement. Also presented is a solution for an optimum ratio of playback lamp luminances for false color recombinations in two bands. |
