Title :
Straight Edge Extraction from LiDAR Images
Author :
Tieling Chen ; Guo Cheng ; Shuting Shi
Author_Institution :
Sch. of Math. & Comput. Sci., Wuhan Textile Univ., Wuhan, China
Abstract :
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.
Keywords :
airborne radar; edge detection; geophysical image processing; gradient methods; median filters; optical radar; radar imaging; smoothing methods; airborne LiDAR images; edge detection; gradient directions; gradient operator; median filter; minimum smoothing processing; straight edge extraction; zigzagged edges; Buildings; Image edge detection; Image segmentation; Laser radar; Noise; Smoothing methods; Wavelet transforms; LiDAR image; edge extraction; gradient; median filter;
Conference_Titel :
Control Engineering and Communication Technology (ICCECT), 2012 International Conference on
Conference_Location :
Liaoning
Print_ISBN :
978-1-4673-4499-9
DOI :
10.1109/ICCECT.2012.152
