Download - Airborne Sensor Technology
Geospatial Solutions Division (GSD)
1TerraSolid – User Group Meeting, Levi, Finland – Feb 2012
Arthur Rohrbach – Airborne Sensor Manager EMEA
Airborne Sensor Technology
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The World of Airborne Sensor Technology
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Hexagon Geosystems – Leica & Z/I airborne solutions Imaging Sensors – DMC & ADS & RCD30 Laser Scanning – ALS 70 Outlook - Summary
Agenda
15.02.2012Autor 4Titel
Constant flow of updated information!
Constant flow of updatedinformation
to gain qualityand efficiency
CAPTUREREALITY
CREATEINFORMATION
MANAGE & SHARE
CAPTUREREALITY
CREATEINFORMATION
MANAGE & SHARE
Constantflow of updatedinformation
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The Geospatial Solutions Division (GSD)
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A Century of History with Zeiss & Leica
RC
RMK RMK
RC
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… leading to a professional airborne sensor portfolio
Leica ADSPushbroom
Imaging
Z/I DMC IIFrame
Imaging
Leica RCDFrame
Imaging
Leica ALS
LIDAR
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From imagery …
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.. to popular web based information
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.. to professional (thematic) mapping …
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… to 3D modelling
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.. almost equal to the real world
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Hexagon Geosystems – Z/I & Leica airborne solutions Imaging Sensors – DMC & ADS & RCD30 Laser Scanning – ALS 70 Outlook - Summary
Agenda
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overlapping aerial photographs
discrete perspective images
Digital frame camera DMCII
forward view
nadir view
backward view
continuous pushbroom scanning
Airborne digital sensor ADS80
Complementary Portfolio – Pushbroom & Frame
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ADS 80Pushbroom
DMC IIFrame
Large Format Digital Cameras (ADS80 , DMC II)
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Leica ADS80 Airborne Digital Sensor
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Leica ADS80 - CCD layout in focal plane
SH91 SH92
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Narrow Spectral band for Remote Sensing
1 Legend
1 Grass
2 Lime Stone
3 Sand, dry
4 Snow, old
5 Fir tree
6 Asphalt
7 Water
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3
4
2
7
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Leica ADS80 <> Best Imagery
RGNPAN RGB
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•Multispectral Pan and RGBN sensor• Innovative beamsplitter designprovides equal resolution in all bands
• 12000 pixels, 6.5um, in all bands instandard mode (Ratio 1:1)
• 24000 pixel swath in HiRes Mode(Ratio 1:2)
• Focal length 65mm (single lens design)• 100% forward overlap at all times• Continously recordable strip length• Dedicated Workflow• Very Rapid orthoprocessing and AT• High accuracy for DSM extraction
Leica ADS80 Airborne Digital Sensor
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1,200 km2, 15cm GSD12 lines, each 80 km, 3 Pan and 8 MSApproximately 7hr flight at 130knots
Flight
Download
Geo-referencing
Aerial triangulation
Ortho photo
Feature extraction
Fly-through
Trajectory calculationgeo-referencing of L0 images
Automatic Point MeasurementBundle Adjustment
RGB or FCIR 1,200 km2
Due to image strips slightly faster than in traditional workflow
400 GB ADS data format
WS with 6 server cluster
Similar to traditional workflow
0.5 h0.1 h
4 h
0.1 h0.3 h
1.7 h
6.7 h
Leica XPro for ADS - Rapid Orthoprocessing
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ADS 80Pushbroom
DMC IIFrame
Large Format Digital Cameras (ADS80 , DMC II)
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DMC II – First LF single PAN cone system
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DMC opticsdesigned by Zeiss
DMC CCD sensordesigned by Dalsa
DMC II - Next Generation Sensor Design
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With the unique DMC II Sensor Design
R
B
G
NIR
PAN
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DMC II230 exceeds the footprint of the first DMC by >13%
• Multi spectral sensor, RGB and IR • 2.5:1 pan‐sharpened color resolution• FMC forward motion compensation• 2.2 second frame rate• Large base/height ratio of 0.36• 4x42 MPixel customized MSS CCD’s• 1x230 Mpixel customized PAN CCD• 15cm GSD from ~2500m flying height
DMC II230 – The LF Industry Standard
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Medium Format Frame Camera (RCD30)
Leica RCD30
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Medium format for photogrammetry?
• Multispectral, co-registered RGB and IR• Mechanical motion compensation, 2 axes• >1 second frame rate• two focal lengths, exhangeable (50mm, 80mm)• Stabilized lens system• High accuracy mapping range• Exchangeable central shutter• B/H ratio of 0.32 @ 60% overlap (50mm)• 2 x 60 MPx, 6um CCD for RGB and NIR• CC3x can control up to five CH6x• Image size single head 8956 x 6708• Image size dual head 13216 x 8956• 15cm GSD @ 3780ft flying height (50mm)• CCD made by DALSA (60 MPx)• Optics made by Zeiss• Weight CH6x 4 kg, CC3x 6kg
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Images - FCIR
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Hexagon Geosystems – Z/I & Leica airborne solutions Imaging Sensors – DMC & ADS & RCD30 Laser Scanning – ALS 70 Outlook - Summary
Agenda
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Laser Scanner – Leica ALS70 Product Line
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What is ALS70? Various models available?
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ALS70 Specifications
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Leca ALS70 - Major components
LS70‐LP Laser Scanner SC70 System Controller
LC60 Laser Controller
OC50 Pilot Display
GI40 Guidance Indicator
OC52 Operator Display
MM70 Mass Memory
15.02.2012Autor 35Titel
ALS70 - capabilities Intensity image, Bregenz, Germany, 11 Mar 2011, 2300 m AGL, 40 deg
FOV (sine), 25 Hz scan rate, 119 kHz pulse rate (MPiA), installed on PAV80 mount, 2 points/m2 (~70 cm post spacing)
15.02.2012Autor 36Titel
ALS70 - capabilities Fused class/intensity image, Fitchburg, MA (USA), September 2010,
1000 m AGL, 40 deg FOV (sine), 25 Hz scan rate, 500 kHz pulse rate (MPiA), ~10 points/m2, 870 m swath
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Major new technologies in ALS70
Point Density Multiplier – doubling productivity Multiple scan patterns new range counting circuitry Pulse rates closer to “speed of light” limit for given flying height
(all models) Dual-output scanner doubles effective pulse rate and scan rate
(ALS70-CM and ALS70-HP only) Laser output split into two beams (slight forward/rearward look)Dual receiversAutoscan feature monitors flying height and speed over ground &
adjusts scan rate to help to keep scan patterns out-of-phase with one another
Multiple scan patterns (sine, triangle and raster) for greater flexibility
Increased receiver bandwidth and dynamic range, for better detection of small and/or low-reflectivity surfaces(e.g., power lines, fresh asphalt)
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Single-path scanning limits along-track spacing
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Dual-output scanning doubles scan rate, pulse rate
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SPiA technology limits pulse rate
1 3 5
2 4
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MPiA technology allows doubling of pulse rate
1 3
3
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2
4
4 5
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Multiple scan patterns for maximum flexibility
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ALS70 family – RCD30 typical mounting (2/2)
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Leica ALS70 workflow – From preflight to point clouds
Planning Collection Ground Processing
MissionPro
FCMS
IPAS TCIPAS CO
ALS pp
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Leica “ MissionPro “ ( / FPES)
Footprint planning AOI - Block, Corridor Flight line Event (Photo)
Footprint flight Flight line Event (Photo)
AOI, hilly terrain
Single line, mountainous terrainCorridor, Route mode
Flight Planning & Evaluation SW – Footprint on DTM
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Leica “ FCMS “ - Mission Execution HW & SW (1/2)
Navigation and graphical guidance information including suggested flightpath is displayed during all phases of the survey flight North-up view for project overview and to control progress in flight
execution Nose-up view for optimized approach and turns In-line view for precise navigation along the line
Vector map as a backdrop on North-up and Nose-up view
North-up view Nose-up view In-line view
High-precision, GNSS-supported flight navigation
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Leica “ FCMS “ - Mission Execution HW & SW (2/2)
Navigation and graphical guidance information in 3-D Optimized for corridor mapping with helicopter
3-D view during approach and turns 3-D view along the line
New 3-D navigation view
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ALS70 workflow
MissionPro/ FPES
Mission Planningmodealtitudescan rateFOVflight speedflight linesflight height
record DGPS base station data
Airborne Operations
record position and attitude data•GPS•IMU
record scanner data•range•scan angle•intensity•timing info
extract position
and attitude
data
DGNSS processing
trajectoryprocessing
•point cloud generation•output formatting – LDI, LAS, ASCII•projection - WGS 84, UTM, state plane, Swiss, TW 97, user-supplied•datum (state plane only) - NGVD 29, NAVD 88
•tiling•coverage verification•outlier removal•bare earth•thinning•catenary generation
deliverables
Ground Operations
Planning Collection Processing
real-time nav file
*.SCN raw scanner files
ALS, FCMS
IPAS TC IPAS TC
ALS Post Processor
position and
attitude file
GPS
TerraScan
IPAS TC
MicroStation
•TIN/contour•control report
TerraModeller
laser boresitecalibration
Attune
“LAS” file
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Leica ALS70 workflow (MFC workflow items in amber)
MissionPro/ FPES
Mission Planningmodealtitudescan rateFOVflight speedflight linesflight heightlens FLshutter speedframe rate
record DGPS base station data
Airborne Operations
record position and attitude data•GPS•IMU•event marksrecord scanner data•range•scan angle•intensity•timing info
record camera data•photo ID file•raw frames
extract position
and attitude
data
DGPS processing
trajectoryprocessing
•point cloud generation•output formatting – LDI, LAS, ASCII•projection - WGS 84, UTM, state plane, Swiss, TW 97, user-supplied•datum (state plane only) - NGVD 29, NAVD 88
•tiling•coverage verification•outlier removal•bare earth•thinning•catenary generation
deliverables
Ground Operations
Planning Collection Processing
real-time nav file
*.SCN raw scanner files
ALS, FCMS, RCD
IPAS TC IPAS TC
ALS Post Processor
position and
attitude file
GPS
TerraScan
IPAS TC
MicroStation
•TIN/contour•control report
TerraModeller
laser boresitecalibration
Attune
calculate exterior
orientations
EO fileIPAS CO
camera boresight, orthophotogeneration
WFM
“LAS” file
orthophotosBayer
conversion
WFM
50TerraSolid – User Group Meeting, Levi, Finland – Feb 2012
Hexagon Geosystems – Z/I & Leica airborne solutions Imaging Sensors – DMC & ADS & RCD30 Laser Scanning – ALS 70 Outlook – Summary
Agenda
51TerraSolid – User Group Meeting, Levi, Finland – Feb 2012
Leica & Z/I System Design – Today
FPESFCMS IPAS 20PAV 80
ADS ALS RCD
XPro
LPS
T‐Solid
Z/I MissionZ/I Inflight/Track
POS AV 510Z/I Mount
DMC
PPS
Image Station
DMC II
PPS
Image Station
Frame Pro
LPS
Flight PlanningFlight Management
Mount
GNSS/IMU
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DPW / Image Processing / GIS / Decision Making
RequiredData &
Application
Customer‘sBusinessModel
PPSFrame Pro XPro TerraSolid
Flight Planning
Flight Management
Mount
GNSS/IMU
Hexagon Airborne System Design – Tomorrow
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Dual Leica Sensor System “ ADS80 – ALS70 ”
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“ A highly Automated Production Workflow ”Complete Solutions – Excellent brands – One Vendor
Hexagon Geosystems - Airborne Technology
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Thank you