Consideration of Geiger-Mode Lidar Data-Sets’ Properties: Challenges and Applications for the 3D Elevation Program

Authors: Milena Janiec Grygo*, United States Geological Survey
Topics: Remote Sensing, Geographic Information Science and Systems, Quantitative Methods
Keywords: airborne lidar, remote sensing, the National Map
Session Type: Paper
Day: 4/11/2018
Start / End Time: 8:00 AM / 9:40 AM
Room: Muses, Sheraton, 8th Floor
Presentation File: No File Uploaded

There has been a growing interest in exploring issues related to the utility of point cloud data acquired from airborne Geiger-mode lidar. As data derived from this sensor becomes available, the 3D Elevation Program continues investigating the accuracy and other characteristics of the data to determine whether it will meet contract specifications and be suitable for a wide range of applications, including scientific research.

The current literature addresses a number of issues related to the drawbacks of the Geiger-mode lidar, as well as points to the ongoing improvements in these sensors and post processing techniques. This paper seeks to add to this discussion, and by drawing on two data sets derived from a Geiger mode sensor, engage with some of the possibilities and limitations the data. This paper also aims to be comparative, and includes information about separate data sets acquired over distinct, urban and rural landscapes. The paper describes how point cloud information traditionally required for discrete, multiple returns lidar, such as timestamps and point source identification, may be viewed within the context of Geiger-mode derived data. In addition, the different data-set's non-vegetative and vegetative vertical accuracy assessments are presented and compared.

Overall, this paper seeks to inform on the characteristics of Geiger-mode sensor derived data. In addition, it aims to contribute towards further discussion on relevant metrics and information supporting elevation data.

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