Straight Edge Extraction from LiDAR Images

Straight Edge Extraction from LiDAR Images

A method is designed to extract straight edges from airborne LiDAR images that usually show zigzagged edges. The method first uses a median filter to straighten the zigzagged edges and then uses a gradient operator with minimum smoothing processing to detect the edges. Finally, edges are extracted w...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Tieling Chen, Guo Cheng, Shuting Shi
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Buildings
edge extraction
gradient
Image edge detection
Image segmentation
Laser radar
LiDAR image
median filter
Noise
Smoothing methods
Wavelet transforms
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Beschreibung
Zusammenfassung:A method is designed to extract straight edges from airborne LiDAR images that usually show zigzagged edges. The method first uses a median filter to straighten the zigzagged edges and then uses a gradient operator with minimum smoothing processing to detect the edges. Finally, edges are extracted with the help of the gradient directions. Extracted edges are straight and have accurate locations too.
DOI:10.1109/ICCECT.2012.152