الفهرس 
Chapter One: INTRODUCTIONOnly 14 pages are availabe for public view
 |  | from | 32 |  |  |
| | | from | 32 | | |
Abstract
The main aims of the study were research into airborne LiDAR as a newly
established remote sensing data capture technique, and then an investigation
into the quality of DEMs generated from airborne LiDAR. Also, assessment the
effect of number of neighbors, cloud point density and interpolation method as
factors controlling the quality of the DEMs generated from airborne LiDAR
data. The ArcGIS 10.1 program and OK, IDW and LP interpolation methods
were used to generate DEMs from LiDAR data elevation points. Fulfilling the
aims of the study demanded creating different DEMs using different number of
neighbors and different cloud point density. Analysis methods was applied into
the output validation errors of DEMs of the ArcGIS 10.1. Visual analysis took
the form of comparative investigations of different DEMs generated using
interpolation methods. Statistical tests were also applied on the validation errors
DEMs generated using different number of neighbors and different cloud point
density. The statistical analysis supported the results of visual analysis. In
addition, an evaluation of the accuracy of DSM and DTM generated from first
and last return LiDAR data was investigated. Interesting results have been
obtained from applying different analysis techniques on different DEMs.
Conclusions of analysis of results are presented in the following section