Results 191 to 200 of about 255,039 (224)

The UAV Path Planning Method Based on Lidar

2019
This paper designs a path planning algorithm based on a two-dimensional lidar. The algorithm is divided into two steps: static global path planning and dynamic local path planning. Static global path planning relies on the risk index map established by the known environment.
Lanxiang Zheng, Ping Zhang 0015, Jia Tan, Mingxuan Chen   +3 more
openaire   +1 more source

UAV–LiDAR accuracy in vegetated terrain

Journal of Unmanned Vehicle Systems, 2018
We examined the horizontal and vertical accuracy of LiDAR data acquired from an unmanned aerial vehicle (UAV) at a field site with six vegetation types: coniferous trees, deciduous trees, short grass (0–0.3 m height), tall grass (>0.3 m height), short shrubs (0–1 m height), and tall shrubs (>1 m height).
Maja Kucharczyk, Chris H. Hugenholtz, Xueyang Zou   +2 more
openaire   +1 more source

Mini-UAV-Borne LIDAR for Fine-Scale Mapping

IEEE Geoscience and Remote Sensing Letters, 2011
Light detection and ranging (LIDAR) systems based on unmanned aerial vehicles (UAVs) recently are in rapid advancement, while mini-UAV-borne laser scanning has few reported progress, notwithstanding so extensively required. This study established a pioneered mini-UAV-borne LIDAR system - Sensei, schematically with an Ibeo Lux scanner mounted on a small
Yi Lin 0002, Juha Hyyppä, Anttoni Jaakkola   +2 more
openaire   +2 more sources

Implementation of UAV-Based Lidar for High Throughput Phenotyping

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
High throughput phenotyping is rapidly gaining widespread popularity due to its ability to non-destructively extract plant traits, such as plant height, canopy density, leaf and plant structure, and so on. In this study, we focus on developing a UAV-based LiDAR system to acquire accurate time-series 3D point clouds for monitoring two specific plant ...
Radhika Ravi, Yun-Jou Lin, Tamer Shamseldin, Magdy Elbahnasawy, Melba M. Crawford, Ayman Habib 0001   +5 more
openaire   +1 more source

Development of LiDAR-Based UAV System for Environment Reconstruction

IEEE Geoscience and Remote Sensing Letters, 2017
In disaster management, reconstructing the environment and quickly collecting the geospatial data of the impacted areas in a short time are crucial. In this letter, a light detection and ranging (LiDAR)-based unmanned aerial vehicle (UAV) is proposed to complete the reconstruction task.
Kai-Wei Chiang, Guang-Je Tsai, Yu-Hua Li, Naser El-Sheimy   +3 more
openaire   +1 more source

UAV lidar: from volcanoes to forests

Improvements in miniaturization and affordability of lidar technology, mainly due to innovation in self-driving cars, means that UAV lidar is now an accessible option for geoscience research. We present applications in which UAV lidar contributes to data collection in ways that would otherwise not be possible in the time frame, budget, and/or with the ...
Mel Rodgers, Robert Van Alphen, Rachel Bakowski, Troy Berkey, Taha Sadeghi Chorsi, Rocco Malservisi, Charles. B. Connor, Timothy. H. Dixon   +7 more
openaire   +1 more source

3D flash lidar imager onboard UAV

SPIE Proceedings, 2014
A new generation of flash LiDAR sensor called GLidar-I is presented in this paper. The GLidar-I has been being developed by Guilin University of Technology in cooperating with the Guilin Institute of Optical Communications. The GLidar-I consists of control and process system, transmitting system and receiving system.
Guoqing Zhou, Yilong Liu, Jiazhi Yang, Rongting Zhang, Chengjie Su, Yujun Shi, Xiang Zhou   +6 more
openaire   +1 more source

Lidar-based detection and tracking of small UAVs

Emerging Imaging and Sensing Technologies for Security and Defence III; and Unmanned Sensors, Systems, and Countermeasures, 2018
The number of reported incidents caused by small UAVs, intentional as well as accidental, is rising. To avoid such incidents in future, it is essential to be able to detect UAVs. LiDAR sensors (e.g., laser scanners) are well known to be adequate sensors for object detection and tracking.
Martin Laurenzis, Michael Arens, Marcus Hebel, Marcus Hammer   +3 more
openaire   +1 more source

Potential of UAV lidar systems for geospatial mapping

Lidar Remote Sensing for Environmental Monitoring 2017, 2017
Recently, developments in airborne sensors and easy to fly, reliable, low-cost commercial Unmanned Aerial Vehicles, UAVs, have opened a new era for high quality and reliable mapping from UAVs using remote sensing techniques. The restricted payload capacity of low-cost UAVs imposes constraints on the quality of their navigation systems and the sensors ...
Rachel Lauf, Christian A. Carreon Limones, Subodh Bhandari, Ahmed Elaksher   +3 more
openaire   +1 more source

UAV LiDAR for below-canopy forest surveys

Journal of Unmanned Vehicle Systems, 2013
Remote sensing tools are increasingly being used to survey forest structure. Most current methods rely on GPS signals, which are available in above-canopy surveys or in below-canopy surveys of open forests, but may be absent in below-canopy environments of dense forests.
Ryan A. Chisholm, Jinqiang Cui, Shawn K. Y. Lum, Ben M. Chen   +3 more
openaire   +1 more source