Radiometric Calibration of LIDAR Intensity With Commercially Available Reference Targets
| Autor: | Anttoni Jaakkola, Sanna Kaasalainen, Juha Hyyppä, Paula Litkey, Eero Ahokas, Juha Suomalainen, Antero Kukko, Mikko Kaasalainen, H. Lehner, Anu Akujärvi, Ulla Pyysalo, Hannu Hyyppä |
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| Rok vydání: | 2009 |
| Předmět: |
010504 meteorology & atmospheric sciences
Backscatter Laser scanning business.industry Calibration (statistics) 0211 other engineering and technologies Hyperspectral imaging 02 engineering and technology 01 natural sciences law.invention Optics Lidar law General Earth and Planetary Sciences Environmental science Radiometry Electrical and Electronic Engineering Radar business Radiometric calibration 021101 geological & geomatics engineering 0105 earth and related environmental sciences Remote sensing |
| Zdroj: | IEEE Transactions on Geoscience and Remote Sensing. 47:588-598 |
| ISSN: | 1558-0644 0196-2892 |
| DOI: | 10.1109/tgrs.2008.2003351 |
| Popis: | We present a new approach for radiometric calibration of light detection and ranging (LIDAR) intensity data and demonstrate an application of this method to natural targets. The method is based on 1) using commercially available sand and gravel as reference targets and 2) the calibration of these reference targets in the laboratory conditions to know their backscatter properties. We have investigated the target properties crucial for accurate and consistent reflectance calibration and present a set of ideal targets easily available for calibration purposes. The first results from LIDAR-based brightness measurement of grass and sand show that the gravel-based calibration approach works in practice, is cost effective, and produces statistically meaningful results: Comparison of results from two separate airborne laser scanning campaigns shows that the relative calibration produces repeatable reflectance values. |
| Databáze: | OpenAIRE |
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