Gis & visual computing Innovative low cost technologies and services for Video Mobile Mapping X International Scientific and Technical Conference From.

gis & visual computing

Innovative low cost technologies and services for

Video Mobile Mapping

X International Scientific and Technical Conference“From Imagery to map: digital photogrammetric technologies”

20-23 September 2010 – Gaeta (Italy)

2Sistemi Avanzati - Roma

Applications and Technology

“Mobile mapping represents a heterogeneous type of sensor integration consisting of navigation sensors as well as imaging sensors, together time synchronized and mounted on a common platform”(Schwarz & El-Sheimy, 1996)

• GPS• IMU• Odometer• Barometer• Multiple cameras/video• Laser scanner• Special sensors (georadar,

laser profilometer, etc.)


Applications

Asset management and utility inventory (build asset inventories and keep them up to date)

• Road side equipment : street furniture, road signs, speed limits, road lanes, marking, traffic lights, bus stop, pavement types, vegetation, flood ways, culverts, drains, kerbs, guttering.

• Verification of existing assets and measurement of asset dimensions

Planning and studies (a decision support tool)• Follow the evolution in your network: visual inspection and

road geometry• Organize scheme design and traffic signals, sign

replacement program• Decision support tool for lane closures and access • Creation of a geo referenced imagery database allowing to

measure the evolution of the network


Applications

Network Operation• Visual inspection of network and road geometry• Measurement of lane/footpath widths, height clearances and

set-backs• Graphical aid to works specifications• Review existing highway data set, surface condition• Planning of responses to events and diversions occurring on

the network• Follow and control of subcontractors acting in the network

Disaster management, planning and response• Emergency management plan • Adapt intervention planning with data collected after

catastrophe • Inventory the damages after catastrophe


Technologies

Traditional technology• Dedicated and specifically fitted vehicles• High quality/accuracy and expensive equipments• Complex devices require skilled operators• Two or more people (driver+ system operators)

required during the survey


Innovative technologies

Metric panoramic images collection from street level(earthmine)

Portable standalone video mapping solution(imajing)


Innovative technologies - Portable video mapping

Surveying solution for transportation network Portable device with high resolution imagery fully

positioned and oriented Software suite for processing field data


Innovative technologies - Portable video mapping

Ultra simple surveying tool

High quality, high frame rate images

High precision and high availability positioning


Portable video mapping – System components

Collect field data

Process and store

Distribute

10Page

Mission configuration on USB pendrive Running Field survey

POST- PROCESSING

Using imajviewData model (XML)

Shape

KML

CSV

JPEG

PostGIS

Imajbox production chain

Portable video mapping - Workflow


Portable video mapping - Hardware

5 megapixel CCD for a perfect visibility of details in the image

Auto gain, auto white balance

Up to 15 frames/seconds full resolution

Combination of 50 channels GPS and integrated high sensitivity antenna

IMU, Inertial Measurement Unit Barometer IMU and barometer hybridized with GPS data (EKF)

12Page

Portable video mapping - Software

Post-processing software

Generation of the navigation solution based on GPS, IMU, barometer, and image processing algorithms

Optimization of stereopairs parameters for photogrammetric processing



Analysis and data collection software

Explore virtually your network Overlay any GIS layer with

surveyed data Support for raster and vector

additional layers in cartographic module

Display of orthophotos in background (.ecw, .tiff)



Tagging environment Mark and qualify regions

of interest in any image Comment any picture Export regions of interest

with associated xyz position



High accuracy positioning directly in images through 3D photogrammetry

Positionning and attributing tools based on photogrametry for 3D positioning of visible objects in images.

Distance between 2 points, height measurement, width measurement, length

Photogrametry based on 2 imagesPosition and qualify object in the image

Photogrametric principle

baseline

x,y,z x',y',z'

Good base line

baseline

x,y,z x',y',z'

Bad base line

baseline

x,y,z x',y',z'

Bad base line

baseline

x,y,z x',y',z'

Better base line

baseline

x,y,z x',y',z'

Take object the closest possible

Preferred zones for pointing & measuring



Build a network referential Create and edit a network

referential in curvilinear abscissa (topology & attributes)

Automatically link GPS longitude, latitude, height of survey with linear distance on network

Automatically assign a linear position (curvilinear abscissa) to positioned objects.

Export surveyed data to your GIS and analysis tools Supported export formats : Shape (ArcGis/ESRI), KML/KMZ (Google

Earth), CSV (Excel/OpenOffice)



Internet/Intranet data sharing solution Complete solution to store, index, archive and distribute imajbox

output data from field survey Virtual navigation in networks Sharing surveys within a team in charge of road work Tourist patrimony virtual visit (path and trails, sites of interest)


Portable video mapping – Internet Applications



Sistemi Avanzati offer: Sale and support of the innovative mobile mapping devices System configuration and customization Survey services using innovative mobile mapping equipments and

sales of equipments for customer direct update of the survey Survey services using innovative mobile mapping equipments

26Sistemi Avanzati - Roma 26Sistemi Avanzati - Roma

Innovative technologies - Metric Panoramic Images

Collect• Scalable hardware & software

system robust data collection

Process• 3D reconstruction of scene using

panoramic stereo vision.• Fully automated image & 3D data

processing pipeline.

Deliver• Unique client/server architecture

for the lightweight delivery of 3D data.

• Elastic cloud storage and delivery• Flexible API products for

developers


Metric Panoramic Images - Content Metrics

High quality & resolution imagery Accurate 3D positioning

50 megapixels

< 1 meter globally


Metric Panoramic Images - Camera Array

180°180°

180°180°

●Vertically offset stereo-panoramic camera array

●Full 360° spherical images with consistent 3D coverage

120°

120°120°

120°


Raw Stereo Images


Metric Panoramic Images - Automated Processing

Wide angle stereo Dense 3D Data Pixel for Pixel 3D

Correspondence High Level of

accuracy Asset Management

Grade Data Layer

Image RectificationStereo CorrelationDisparity/XYZ output


Metric Panoramic Images - 3D Data Samples


Metric Panoramic Images - 3D street level animation


Metric Panoramic Images – 3D measurements


Metric Panoramic Images - 3D localization



Gis & visual computing Innovative low cost technologies and services for Video Mobile Mapping X International Scientific and Technical Conference From.

Documents

network slide

z slide

image slide

survey slide

catastrophe slide

measuring slide

tiff slide

processing field data