If you are interested in learning more about the applications above, take a few minutes to read the following article, which explains how GreenValley International (GVI) products are applied to meet standard forest inventory and management objectives.
Just a few years ago, people were only able to use remote sensing imagery and photogrammetric data products to determine the stocking level of a forested area. Information from these sources is combined within the field measurements collected by hand to answer the questions stated at the beginning of this article. However, now with the recent advancement of LiDAR technologies, collecting forest inventory data has become easier than ever. LiDAR, as a high-accuracy detection instrument, can easily acquire measurements needed to produce three-dimensional point cloud models of forests with centimeter levels of accuracy. Critical information can be extracted directly from these LiDAR point clouds models or calculated when coupled with other sources of forest inventory data.
GVI’s turnkey solutions for forest industries include hardware and software products that make LiDAR data collection, processing, and analysis possible.
The LiAir V70’s lightweight and portable design offers a wide-angle field of view and fast scanning rate that make UAV-LiDAR data capture efficient. There are few operating restrictions with this device, and it has the adaptability to perform effectively in a wide variety of environments.
As a UAV-based 3D laser scanning device, LiAir V70 is well-positioned to obtain detailed and accurate measurement data from hard-to-access upper forest canopy regions.
LiBackpack DGC50 is the flagship model in GVI’s LiBackpack Series. This system features dual LiDAR sensors and a panoramic camera that allow users to capture RGB information and generate colored point cloud. The device’s SLAM technology enables use in GNSS-denied zones commonly found beneath forest canopies. From this scanning perspective, users can obtain the complete structure of the trunks of the trees and the lowest strata of forest canopies. Furthermore, DBH, canopy coverage, etc., can be readily extracted from this type of ground-based LiDAR data using tools found in GVI’s LiDAR360 TLS Forest Module.
Data Processing Software:
• Post-process GNSS information collected by LiAir INS
• Generate colorized point cloud with high levels of absolute accuracy
• Reproject point cloud data to a user-specified target spatial reference system
• Calculate and apply boresight corrections to LiAir generated point clouds
• Generate 3D, colorized point clouds from data collected with LiBackpack models that feature an integrated panoramic camera
• Produce 3D point clouds using GVI’s advanced SLAM algorithm
• Adjust data processing parameters based on the surveying conditions to improve accuracy
• Align spatially overlapping point clouds collected at different times
• Easily clean and manage 3D point cloud data
• Display the data in ways that make it easier for the user to interpret
Data Analysis Platform:
LiDAR360’s Forestry Module allows users to:
• Obtain the forest inventory metrics rapidly
• Segment forest point clouds into individual trees
• Determine tree densities and stocking levels automatically
• Perform regression analysis with external plot-level data inputs and forest LiDAR to predict the variables that the user is interested in (e.g., above-ground biomass, carbon storage, standing timber volumes, expected yield, etc.) across an entire area