jeudi 27 septembre 12

jeudi 27 septembre 12
Oblique imagery workflow
The Castle of Versailles - ORTHOBLIQUE® InterAtlas © 2012
jeudi 27 septembre 12
© InterAtlas 2012
© InterAtlas 2012
1 - Hardware
2 - IA/Inpho
IA-GSD
IA-NAV
Aerial-triangulation
3 - acute3D
4 - result
jeudi 27 septembre 12
© InterAtlas 2012
1 - Hardware
jeudi 27 septembre 12
Oblique - Hardware
© InterAtlas 2012
4 x 50 Mpx - 150 mm to 50 mm lenses
Installation in a dual holes Chieftain PA31 using 1 IMU/GPS for both system
jeudi 27 septembre 12
Oblique - Hardware
© InterAtlas 2012
SSD hard disk storage
Cameras computer
L1-L2 GPS
Master computer connected to GPS
managing the event exposure based on :
- the area of interest (polygon)
- overlap required (common area between 2
IGI AEROcontrol & IMU used to
calculate obliques 3D angles (ωφκ)
IA-TRAJECTO (post-processing)
adjacent photos)
IGI CCNS used for flight guidance
based on WinMp or IGIplan
flight plan optimized with
IA-GSD (line spacing)
Oblique acquisition management system
jeudi 27 septembre 12
Oblique - Hardware
© InterAtlas 2012
Oblique overlap understanding
Flight direction
flying altitude
45°
foot print
jeudi 27 septembre 12
Oblique - Hardware
Oblique overlap understanding
Front and rear cameras
M
C
Longitudinal overlap
N
lateral overlap
X
Y
Flight direction
flying altitude
foot print
jeudi 27 septembre 12
© InterAtlas 2012
Oblique - Hardware
Oblique overlap understanding
Side cameras
(left & right)
M
C
Longitudinal overlap
N
Yellow camera
Y
lateral overlap
X
Flight direction
flying altitude
foot print
jeudi 27 septembre 12
© InterAtlas 2012
© InterAtlas 2012
2 - Software
jeudi 27 septembre 12
Oblique - Software
© InterAtlas 2012
IA-GSD
Flight GSD calculator
Flight oblique overlap Calculator
In order to prepare the flight plan we developed an utility software that allow to calculate the best line
spacing and overlap for the flight plan software (IGIplan, WinMp) based on a given GSD.
jeudi 27 septembre 12
Oblique - Software
IA-NAV
Once the flight plan is calculated IA-NAV needs the polygon of the area to
be acquired and the longitudinal flight overlap.
From there, the acquisition will be automatically managed by the software.
jeudi 27 septembre 12
© InterAtlas 2012
Oblique - Software
IA-NAV
During the flight the operator may check the
GPS logs to control that everything is in order.
jeudi 27 septembre 12
© InterAtlas 2012
Oblique - Software
IA-NAV
The previews may also be checked by the operator at any time
in order to possibly modify the camera setup.
jeudi 27 septembre 12
© InterAtlas 2012
Oblique - Software
IA-NAV
After the acquisition we process the data in order to get a
metric navigation, position : xyz and angles : ωφκ
meaning the 3D position in space of each oblique picture
jeudi 27 septembre 12
© InterAtlas 2012
Oblique - Software
Aerial-Triangulation
After the post-processing we can run an aerial-triangulation
(Match-AT) to enhance the 3D position of each oblique picture
jeudi 27 septembre 12
© InterAtlas 2012
Oblique - Software
Aerial-Triangulation
It is then possible to work in 3D with the oblique
picture for measurement or 3D purpose.
jeudi 27 septembre 12
© InterAtlas 2012
© InterAtlas 2012
3 - acute3D
jeudi 27 septembre 12
acute3D
Smart3DCapture Master
Adjustment and 3D construction from Inpho’s AT project
jeudi 27 septembre 12
© InterAtlas 2012
© InterAtlas 2012
4 -Result
jeudi 27 septembre 12
Result
3D result from acute3D technology and InterAtlas pictures
jeudi 27 septembre 12
© InterAtlas 2012
Result
3D result from acute3D technology and InterAtlas pictures
jeudi 27 septembre 12
© InterAtlas 2012