Boyd, D. S. and Hill, R.A., 2007. Validation of Airborne LiDAR Intensity Values from a Forested Landscape Using HyMap Data: Preliminary Analyses. In: Proceedings of the ISPRS Workshop: Laser Scanning 2007 and SilviLaser 2007, September 12-14, 2007, Espoo, Finland, pp. 71-76.
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There is a growing body of literature that points to the value of using the intensity measures of the backscattered laser light in addition to the pulse range measurements for studying a range of environments, including forests. However, there is a lack of literature that has validated the lidar intensity values captured in a campaign, and therefore limited understanding in the full utility of these data. This paper presents preliminary analyses of lidar intensity values captured over an area of woodland in the UK in comparison with concurrently acquired HyMap data, which measures the passive reflected radiation at the same wavelengths. The study concludes that lidar intensity values are broadly representative of the NIR radiation reflected from the forested landscape and therefore could be utilised. However, there is a real need for calibration of intensity data, particularly if flight lines are to be merged. Furthermore, if lidar intensity values are to be interpolated into a raster and used in a similar way to conventional image analysis, the selected interpolation technique significantly affects the resultant lidar values.
|Item Type:||Conference or Workshop Item (Paper)|
|Subjects:||Geography and Environmental Studies|
Technology > Agriculture
|Group:||School of Applied Sciences > Centre for Conservation, Ecology and Environmental Change|
|Deposited By:||INVALID USER|
|Deposited On:||16 Dec 2008 20:15|
|Last Modified:||07 Mar 2013 14:57|
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