presented at the fig working week 2019,april 22-26, 2019 ...the problems and trend to resolve phd....
TRANSCRIPT
![Page 1: Presented at the FIG Working Week 2019,April 22-26, 2019 ...THE PROBLEMS AND TREND TO RESOLVE PhD. PHAM XUAN HOAN PhD. LE THI KIM DUNG. 3 contents 1. INTRODUCTION 2. UAVs AND APPLICATIONS](https://reader033.vdocument.in/reader033/viewer/2022042009/5e719fd182c236211e1b36cc/html5/thumbnails/1.jpg)
Presented at th
e FIG W
orking Week 2019,
April 22-26, 2
019 in Hanoi, V
ietnam
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APPLICATIONS OF COLLECTION AND PROCESSING UAV DATA: THE PROBLEMS AND TREND TO RESOLVE
PhD. PHAM XUAN HOAN
PhD. LE THI KIM DUNG
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contents
1. INTRODUCTION
2. UAVs AND APPLICATIONS
3. FLIGHT PLANNING AND DATA PROCESSING
4. PROBLEMS AND TREND TO RESOLVE
5. Q&A
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1. INTRODUCTION
In recent years we have not unfamiliar with the term unmanned aerial vehicle
(UAV). Technology Aerial photogrammetry taken by UAV is used in many
different industries and has made certain achievements. UAV technology has
been developing very intense, but also exist many problems remaining unsolved,
as a challenge for researchers in the future. There are problems about the
orthophotos establish, the DTM/DSM, the 3D model and accuracy of the results.
PROBLEMS -> RESOLVE
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▪ Multipurpose UAV
▪ Multisensory;
▪ Complex orbit
▪ Small Landing zone
▪ Short flight time;
▪ Stabilization;
▪ Low wind speed resistance;
▪ Require good skill pilot;
2. UAVs AND APPLICATIONS
2.1. UAV HELICOPTER TYPE
Microdrone MD4-1000
Inspire Pro DJI
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▪ Long flight time
▪ Stable operation
▪ High cruise speed
▪ High Wind speed Resistance
▪ Hand launch; Launcher
▪ Automatic landing
▪ Require large Landing zone (150x300 m)
▪ Limited camera.
2. UAVs AND APPLICATIONS
2.2. UAV fixed wing
GeoScan 101
Trimble UX5Ebee Sense Fly
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▪ Mixed advantages
▪ the operational flexibility of muiltirotors and the
smooth, fast flight of fixed-wing airplanes.
▪ High cost
2. UAVs AND APPLICATIONS
2.3. UAV hybrid
CP15
FireFLY6 PRO
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▪ Camera
▪ Thermal camera
▪ Argiculture camera (NIrCamera)
2. UAVs AND APPLICATIONS
2.4. Sensor
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2. UAVs AND APPLICATIONS
2.4. applications
Mapping, 3D map
Cadastral
Monitoring, video transition
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2. UAVs AND APPLICATIONS
2.4. applications
Landslide monitoring
Power line monitoring
Detail 3D modelsPowerline Planning
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3. FLIGHT PLANNING AND DATA PROCESSING
Emotion
MapMadeEasyGeoPlanner
GeoScan –> GeoPlanner
Ebee – >Emotion
Trimble – >Aerial Imaging
DJI,.. –> Pix4Capture, MapMadeEasy
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3. FLIGHT PLANNING AND DATA PROCESSING
Commercial software
Easy to use
ProjectImport photos
Import precise
coordinates photos)
Align Photo GCPsDense
pointCloundDSM Orthophoto
Metashape
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4. PROBLEMS AND TREND TO RESOLVE
4.1. Orthomosaic quality
Melting edge fixed
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4. PROBLEMS AND TREND TO RESOLVE
4.2. DTM & DSM Quality
DSM
DTM
Point cloud classification
ImageStation -> Manual draw DTM lines
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4. PROBLEMS AND TREND TO RESOLVE
4.2. DTM & DSM Quality
Lidar UAV
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4. PROBLEMS AND TREND TO RESOLVE
4.3. Hardware and Software
Battery
BS
Parachute
So many Software -> ??
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4. PROBLEMS AND TREND TO RESOLVE
4.4. Accuracy
Map scale: 1/500. 1/1000. 1/2000
How to improve accuracy H/V.
How many GCPs?
How big GCP size?.
How do we spread GCPs?
RTK
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4. PROBLEMS AND TREND TO RESOLVE
4.4. Accuracy
GCPs
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4. PROBLEMS AND TREND TO RESOLVE
4.5. Other
Flight route Weather
Emergency
situation
Data Processing
Landing zone
Flight time
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THANK YOU!
Q&A