“If we have data, let’s look at data. If all we have are opinions, let’s go with mine.” – Jim Barksdale, former Netscape CEO Data are the facts or details from which information is derived Throughout this course, know that we are combining data on the basis of location and individual attributes to […]

Data v. Information


.   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



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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