.   Course Lab Topics: Lab 1: OBIA – use a segmentation approach to classify an image in ArcGIS Lab 3: Vegetation indices – compute VIs in ArcGIS Lab 5: GlobalMapper – generate DSM & DTM Lab 6: GlobalMapper – create 3D profile Lab 8: Calculate volume based on the […]

Can you do this???


.   Processing a terrestrial laser scan of a single tree… (TLS data) #####New libraries to install: concaveman, shapefiles library("lidR") library("rgdal") library("concaveman") library("shapefiles") #####Load Files mypath<- "U:/FANR5640/Spring2019/labs/lab09Data" myfile<- "SingleTree.laz" infile<- file.path(mypath,myfile) lastmp = readLAS(infile, select = "xyzirc")##, Intensity = F, ReturnNumber = F, NumberOfReturn = F, ScanAngle = F, EdgeOfFlightline […]

Process Single Tree – Compute Convex Hulls (version 2)


.   Processing a terrestrial laser scan of a single tree… (TLS data) #####might need to install the concaveman library library("lidR") library("rgdal") library("concaveman") #####Load Files mypath<- "U:/FANR5640/Spring2019/labs/lab09Data" myfile<- "SingleTree.laz" infile<- file.path(mypath,myfile) lastmp = readLAS(infile, select = "xyzirc")##, Intensity = F, ReturnNumber = F, NumberOfReturn = F, ScanAngle = F, EdgeOfFlightline […]

Process Single Tree – Compute Convex Hulls



  #####https://www.rdocumentation.org/packages/lidR/versions/2.0.1 library(“lidR”) library(“rgdal”) library(“EBImage”) #####Load Files mypath<- “/media/biomata/SSD1/Dickens_07Dec18/out” myfile<- “Dickens_07Dec18_llp.las” infile<- file.path(mypath,myfile) lastmp = readLAS(infile, select = “xyzirc”)##, Intensity = F, ReturnNumber = F, NumberOfReturn = F, ScanAngle = F, EdgeOfFlightline = F, ScanDirectionFlag = F, UserData = F, PointSourceId = F, color = T) summary(lastmp) lasd<- lasfilterdecimate(lastmp,random(100)) plot(lasd) […]

dickens llp


Lab 11 RedEdge – Follow-up   We’ve just flown a RedEdge mission out at Lake Herrick resulting in 275, 5-band multispectral images.  Many of the images were acquired using a vertical flight pattern (5m AGL, 6m AGL, …, 200m AGL). The raw imagery has been converted to percent reflectance (DN […]

Lab11 – MicaSense RedEdge-M – Follow-up


    The MicaSense RedEdge-M a specialized sensor capable of recording reflected energy in the visible blue, green and red wavelengths as well as the non-visible red edge and near-infrared portions of the electromagnetic spectrum. Typical response of healthy plants, when compared to stressed plants, is lower in the visible […]

Lab11 – MicaSense RedEdge-M



    Notice to Airmen (NOTAMs):  https://pilotweb.nas.faa.gov or https://skyvector.com/ flight planning purposes provides information to airmen which contains pertinent information to increase air safety applies to all pilots drone operators file a NOTAM only if you have a waiver that requires it purposes avoid temporarily restricted areas inform drone pilots […]

Airport Operations


    Lab deliverable is highlighted in Orange about half-way through the lab. Lab 10 is loosely based on the Agisoft Intermediate tutorial posted here: https://www.agisoft.com/index.php?id=35 Download photos from the March, 19, 2016 Botanical Garden flight (HERE). You will need to select all of the photos (tick box in upper […]

Lab10 – Agisoft Metashape Part 1


https://lh5.googleusercontent.com/C_MYTgbtTxCxCQVo5RfCPVUl2_ysujBG-kxWl6TXgOKbPs3DdAAmgPi-ihvr7DR_1VU5K6wOxuFb24SqFvgkz3oW9QkLjoRKa2G7T4QN_PwVjT5QQQLt-O0Ri0PbhVMrvYaE-Zl0
Still looking at sectionals… Link to the complete FAA Aeronautical Chart User’s Guide (all 131 pages!!!) We will be working through this document this morning. Airport Terms: Uncontrolled airport: airport with no control tower CTAF: “Common Traffic Advisory Frequency”; the VHF frequency used for air-to-air communications AWOS: “Automated Weather Observing […]

13 – Part 107 Sectionals – More Symbols



    Lab 9 Data Link (clp_tls.laz).  This is a large dataset, have patience!!!  The “LAZ” file is a common point cloud file format storage type.  You read a LAZ the same way you read a LAS – you process it using the same approach. You will start with a […]

Lab09 – Terrestrial Lidar Analysis in R