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https://hdl.handle.net/11681/5056| Title: | Parallel optical processing to convert elevation data to slope maps. Phase II, Practical considerations |
| Authors: | Geographic Sciences Laboratory. Hecht, Avron S. |
| Keywords: | Diffraction Fourier transforms Coherent optical data processing Spatial filtering Military geographic area analysis Slope mapping |
| Publisher: | U.S. Army Engineer Topographic Laboratories. Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Research note (U.S. Army Engineer Topographic Laboratories) ; ETL-RN-74-12. |
| Description: | Technical report Abstract: The considerations in designing and calibrating a coherent optical data processing system for quantitative slope computation from a transparency with amplitude transmittances as a function of surface terrain elevations are described in this report. Methods of designing the spatial filter and criteria for selecting the optical system components to minimize the errors in determining slopes are described. Procedures for calibrating the input transparency and the optical system are specified. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/5056 |
| Appears in Collections: | Research Note |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ETL-RN-74-12.pdf | 768.53 kB | Adobe PDF |  View/Open |