BUILDING EDGE DETECTION USING SMALL-FOOTPRINT AIRBORNE FULL-WAVEFORM LIDAR DATA
The full-waveform lidar technology allows a complete access to the information related to the emitted and backscattered laser signals. Although most of the common applications of full-waveform lidar are currently dedicated to the study of forested areas, some recent studies have shown that airborn...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2012-07-01
|
| Series: | ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | https://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/I-3/147/2012/isprsannals-I-3-147-2012.pdf |
| Summary: | The full-waveform lidar technology allows a complete access to the information related to the emitted and backscattered laser signals.
Although most of the common applications of full-waveform lidar are currently dedicated to the study of forested areas, some recent
studies have shown that airborne full-waveform data is relevant for urban area analysis. We extend the field to pattern recognition with
a focus on retrieval. Our proposed approach combines two steps. In a first time, building edges are coarsely extracted. Then, a physical
model based on the lidar equation is used to retrieve a more accurate position of the estimated edge than the size of the lidar footprint.
Another consequence is the estimation of more accurate planimetric positions of the extracted echoes. |
|---|---|
| ISSN: | 2194-9042 2194-9050 |