Combination of overlap-driven adjustment and Phong model for LiDAR intensity correction

doi:10.1016/j.isprsjprs.2012.09.015

	Combination of overlap-driven adjustment and Phong model for LiDAR intensity correction
	Ding, Qiong 1; Chen, Wu 1; King, Bruce 1; Liu, Yanxiong 2; Liu, Guoxiang 3
刊名	ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
	2013-01
卷号	75 页码:40-47
关键词	Airborne laser scanning Intensity Least squares Overlapping strips Reflection
ISSN号	0924-2716
DOI	10.1016/j.isprsjprs.2012.09.015
英文摘要	Airborne laser scanning LiDAR systems deliver not only geometric (X,Y,Z) information of the scanned surfaces but also the returned intensity of the laser pulse. Recent studies have shown the potential of using intensity data for many applications. However, there are limitations in using the raw intensity data because of radiometric system bias, reflectance noise and variations between adjacent strips. To overcome these limitations, a three-step LiDAR intensity correction algorithm is proposed. Following corrections for environmental and surface effects, an overlap-driven least-squares adjustment model that does not rely on the selection of homologous points minimizes intensity differences in the overlap area of strips. Finally, the Phong reflection model, which describes both diffuse and specular reflectance, is used to attenuate the effects of strong reflections that typically occur over wet or water dominated areas. The algorithm was applied to a multi-strip LiDAR dataset that covers wetlands in the estuary of the Yellow River, People's Republic of China. Results demonstrated a significant reduction in radiometric differences in the overlap areas, and strong specular reflections in the nadir regions were reduced. Objects which were obscured by the specular reflection in the original intensity data were clearly identifiable after the adjustment. (c) 2012 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS) Published by Elsevier B.V. All rights reserved.
资助项目	Hong Kong Polytechnic University Research Fund[1-ZV63]
WOS关键词	AIRBORNE LIDAR ; TREE DETECTION ; LASER ; HEIGHT ; FILTER ; CLASSIFICATION ; VEGETATION
WOS研究方向	Physical Geography ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000314435100004
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25786]
专题	自然资源部第一海洋研究所
通讯作者	Ding, Qiong
作者单位	1.Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Kowloon, Hong Kong, Peoples R China 2.Ctr Ocean Engn Environm & Geomat, Inst Oceanog 1, Qingdao, Peoples R China 3.SW Jiaotong Univ, Fac Geosci & Environm Engn, Chengdu, Peoples R China
推荐引用方式 GB/T 7714	Ding, Qiong,Chen, Wu,King, Bruce,et al. Combination of overlap-driven adjustment and Phong model for LiDAR intensity correction[J]. ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING,2013,75:40-47.
APA	Ding, Qiong,Chen, Wu,King, Bruce,Liu, Yanxiong,&Liu, Guoxiang.(2013).Combination of overlap-driven adjustment and Phong model for LiDAR intensity correction.ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING,75,40-47.
MLA	Ding, Qiong,et al."Combination of overlap-driven adjustment and Phong model for LiDAR intensity correction".ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING 75(2013):40-47.