Automatic Extraction Algorithm of High Voltage Pylon Based on LiDAR Point Cloud

Lijie Shan; Jianping Yue

doi:10.3788/LOP202158.2428009

Journals >Laser & Optoelectronics Progress >Volume 58 >Issue 24 >Page 2428009 > Article

Laser & Optoelectronics Progress
Vol. 58, Issue 24, 2428009 (2021)

Automatic Extraction Algorithm of High Voltage Pylon Based on LiDAR Point Cloud

Lijie Shan^* and Jianping Yue

Author Affiliations

School of Earth Science and Engineering, Hohai University, Nanjing, Jiangsu 211100, China

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DOI: 10.3788/LOP202158.2428009 Cite this Article Set citation alerts

Lijie Shan, Jianping Yue. Automatic Extraction Algorithm of High Voltage Pylon Based on LiDAR Point Cloud[J]. Laser & Optoelectronics Progress, 2021, 58(24): 2428009 Copy Citation Text

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Fig. 1. Flow chart for automatic extraction of pylons

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Fig. 2. Elevation distribution characteristics of different surface features

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Fig. 3. Original point cloud data. (a) Data 1; (b) data 2

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Fig. 4. Extraction results of data 1. (a) Ground points and non-ground points after filtering; (b) ROI extraction result; (c) fine extraction result

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Fig. 5. Extraction results of selected data from data 2. (a) Ground points and non-ground points after filtering; (b) ROI extraction result; (c) fine extraction result

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Test data	Pylon	Number of manually extracted points	Number of points extracted by our algorithm	Extraction rate /%
Data 1	#1	11867	12295	96.5
	#2	18449	18958	97.2
	#3	62086	65702	94.5
	#4	15731	16295	96.5
	#5	29627	31282	94.7
Data 2 ( partial)	#6	13417	16265	82.5
	#7	12331	14804	83.3
	#8	14526	17691	82.1

Table 1. Point cloud extraction results of high voltage pylons

Pylon	Method	x value /m	y value /m	Plane error /m
#1	Manual method	266255.78	3374211.02	--
	Proposed algorithm	266254.87	3374211.06	0.47
	Method in Ref. [3]	266254.93	3374210.74	0.89
	Method in Ref. [5]	266255.33	3374210.91	0.46
#2	Manual method	266230.84	3374506.69	--
	Proposed algorithm	266230.42	3374506.71	0.42
	Method in Ref. [3]	266230.86	3374507.63	0.94
	Method in Ref. [5]	266230.31	3374506.49	0.57
#3	Manual method	266208.07	3374775.58	--
	Proposed algorithm	266208.41	3374775.97	0.52
	Method in Ref. [3]	266208.93	3374775.16	0.96
	Method in Ref. [5]	266208.54	3374775.23	0.59
#4	Manual method	266293.64	3374403.47	--
	Proposed algorithm	266293.88	3374403.31	0.29
	Method in Ref. [3]	266293.41	3374402.98	0.54
	Method in Ref. [5]	266293.73	3374403.32	0.17
#5	Manual method	266252.06	3374872.84	--
	Proposed algorithm	266252.15	3374872.52	0.33
	Method in Ref. [3]	266252.51	3374872.57	0.52
	Method in Ref. [5]	266252.19	3374872.43	0.43

Table 2. Plane coordinates and error calculation results of high voltage pylons obtained based on data 1

Lijie Shan, Jianping Yue. Automatic Extraction Algorithm of High Voltage Pylon Based on LiDAR Point Cloud[J]. Laser & Optoelectronics Progress, 2021, 58(24): 2428009

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