Lidar accuracy assessment by intensity images and ground control points

Wei Chen Hsu*, Tian-Yuan Shih, Jin King Liu, Ta Ko Chen, Hsin Yu Ho

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

With high repetition rate of laser measurements, the airborne lidar system is capable to provide massive number of points with three dimensional coordinates. These measurements can be used for DEM production. The height accuracy of airborne lidar measurements reaches decimeter level. But the horizontal accuracy of the lidar points is difficult to evaluate due to the uncertainty of the scattered points. This study measured the horizontal coordinates of signalized points in the lidar intensity image. These signalized points were formerly established for the geo-referencing of satellite images. It is found that the horizontal accuracy of lidar points are in the range of -0.483∼+0.785 meters, roughly 1/2000 of the flying height of the mission. The number of laser points on the target of signalized point is found not related to the horizontal accuracy.

原文English
主出版物標題28th Asian Conference on Remote Sensing 2007, ACRS 2007
頁面1956-1961
頁數6
出版狀態Published - 11月 2007
事件28th Asian Conference on Remote Sensing 2007, ACRS 2007 - Kuala Lumpur, Malaysia
持續時間: 12 11月 200716 11月 2007

出版系列

名字28th Asian Conference on Remote Sensing 2007, ACRS 2007
3

Conference

Conference28th Asian Conference on Remote Sensing 2007, ACRS 2007
國家/地區Malaysia
城市Kuala Lumpur
期間12/11/0716/11/07

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