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Assessing the feasibility of UAV-based LiDAR for high resolution forest change detection

conference contribution
posted on 2023-05-23, 17:49 authored by Luke WallaceLuke Wallace, Arko LucieerArko Lucieer, Christopher WatsonChristopher Watson
Airborne LiDAR data has become an important tool for both the scientific and industry based investigation of forest structure. The uses of discrete return observations have now reached a maturity level such that the operational use of this data is becoming increasingly common. However, due to the cost of data collection, temporal studies into forest change are often not feasible or completed at infrequent and at uneven intervals. To achieve high resolution temporal LiDAR surveys, this study has developed a micro-Unmanned Aerial Vehicle (UAV) equipped with a discrete return 4-layer LiDAR device and miniaturised positioning sensors. This UAV has been designed to be low-cost and to achieve maximum flying time. In order to achieve these objectives and overcome the accuracy restrictions presented by miniaturised sensors a novel processing strategy based on a Kalman smoother algorithm has been developed. This strategy includes the use of the structure from motion algorithm in estimating camera orientation, which is then used to restrain IMU drift. The feasibility of such a platform for monitoring forest change is shown by demonstrating that the pointing accuracy of this UAV LiDAR device is within the accuracy requirements set out by the Australian Intergovernmental Committee on Surveying and Mapping (ICSM) standards.

Funding

Winifred Violet Scott Charitable Trust

History

Publication title

International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume 39-B7

Volume

39-B7

Editors

M Shortis, W Wagner, J Hyyppa

Pagination

499-504

Department/School

School of Geography, Planning and Spatial Sciences

Publisher

ISPRS

Place of publication

Australia

Event title

The 12th Congress of the International Society for Photogrammetry and Remote Sensing

Event Venue

Melbourne, Australia

Date of Event (Start Date)

2012-08-25

Date of Event (End Date)

2012-09-01

Repository Status

  • Restricted

Socio-economic Objectives

Assessment and management of freshwater ecosystems

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    University Of Tasmania

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