PPT 1

Report
Excellence in Photogrammetry
for Open Cultural Landscape & Heritage Education
http://la.teikav.edu.gr/epoche
Project Thesis of Group “C”
 Stefanos – Athanasios BERGOUNIS [TEI-K, GR]
 Simina CIOCAN [UPT, RO]
 Alexandru Ionel GĂZDAC [UAB, RO]
 Istvan VEGH [UWH-GEO, HU]
 Klára MARTVOŇOVÁ [STU Svf, SK]
Contents
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Section 1: Introduction
Section 2: Digital Photogrammetry
Section 3: Photogrammetric Image Processing
Section 4: Digital 3D Modeling
Section 5: Conclusions & Discussion
Acknowledgements
Bibliography & References
Appendix A’: Description & Historical
Data/Information of the Target Monuments
 Appendix B’: The 3D Modeler & The VeCAD SoftWare
1. Introduction
 Group 3 members came to Thassos with EPOCHE 2013
LLP ERASMUS IP in order to produce digital 3D models
of the objects with historical interest. The software used
was the following:
 VeCAD Software
 PhotoModeler Scanner Software
 AgiSoft PhotoScan Sofware
 Thassos is a little green and
mountainous greek island which is
famous for its clean beaches. The
island is in front of the Macedonian
dry land and the mouth of the river
Nestos and it is the 12th largest by
area.
Thasos island is located in the northern Aegean sea approximately
7 km from the northern mainland and 20 km south-east of Kavalla,
and is of generally rounded shape, without deep bays or significant
peninsulas.
2. Digital Photogrammetry
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Digital Photogrammetry is the art of using
computers to obtain the measurements of objects in a
photograph. It typically involves analyzing one or more
existing photographs or videos with photogrammetric
software to determine spatial relationships. Although
commonly used to create topographical maps, it may
also be useful in a variety of industries such as
architecture, manufacturing, police investigation, and
even plastic surgery
The Equipment
 Sony Alpha DSLR - a350
 Camera type – Digital SLR
 Optical Zoom – Not Applicable
 Megapixels – 14.2
 Image Sensor – CCD
 Image Stabilisation – CCD Shift
 LCD Monitor - 2.7 inch
 Flash Modes – Auto Flash, Red- eye reduction, Flash OFF
 Memory card slot – CompactFlash (CF), Memory Stick PRO,
Memory Stick PRO Duo, Microdrive, Memory Stick Duo
The Equipment
 SOUTH Total Station NTS-352R Reflectorless 2”
Features:
 Extended Internal Memory (Max. 24000 Points)
 Handy EDM Head
 Complete Application Programs
 Convenient Data Management System
 Superior Waterproof & Dustproof
Capabilities, IP66
 Min. Reading 0.1mm
The Equipment
Specifications:
 Color: Yellow
 Accuracy: 2”
 Battery: Ni – H, Rechargeable
 Operating time: 8 hours (small battery), 10 hours (big
battery)
 Charging time: 3 hours
 Display: LCD, 4 lines
 Operating temperature: -20 - +45
 Dimension: L200×H350×W180 mm
 Weight: 5,8 kg
3. Photogrammetric Image Processing
Calibration
 Taking photos of the calibrates figures
 Process
Calibration
Software used:
a) Calib:
-used to calibrate the
photos
-the result of the
calibration is the *.dat file
Creating an orthophoto-mosaic
 Visited the building
 Made a sketch
 Photoshooting
 Measured the building
Creating an orthophoto-mosaic
 Software used:
VeCAD
Creating an orthophoto-mosaic
 - insert the calibrated photos one by one
 - data processing
 - obtaining the final result: rectified images
Creating an orthophoto-mosaic
 Software used: AutoCAD
Creating an orthophoto-mosaic
 Used for
- better precision
- to highlight the most important details:
* doors
* windows
* brick
* shape of the building
Creating a 3D model of a Pillar
•Visited the object
•Made a sketch
•Measured two
distances
•Photo Shooting
Creating a 3D model of a Pillar
 Software used : PhotoModeler Scanner
Creating a 3D model of a Pillar
 Selected 11 photos and 2
distances
 Imported photos in
PhotoModeler Scanner
 Calibration of the camera
 Oriented the photos
 Found the common points
 Selected, referenced and
processed the common points
 Joined the elements of the
pillar
Creating a 3D model of a Pillar
 Opened 3D view
 Created surfaces
 Created photo – set of the
photos
 Added a new material
 Defined a scale, with the
help of a distance
 Exported the 3D model in
three different formats
(*.dxf, *.wrl, *.3ds)
Creating a 3D model of a monument
• Visited the object
• Made a sketch
• Measured two distances
• Photo Shooting
Creating a 3D model of a monument
 Software used: PhotoModeler Scanner
Creating a 3D model of a monument
 Selected 7 photos and 2
distances
 Imported photos in
PhotoModeler Scanner
 Calibration of the camera
 Oriented the photos
 Found the common points
 Selected, referenced and
processed the common
points
 Joined the elements of the
pillar
Creating a 3D model of a monument
 Opened 3D view
 Created surfaces
 Defined a scale,
using a distance
 Exported the 3D
model in three
different
formats
(*.dxf, *.wrl, *.3ds)
Creating a 3D model of a statue
• Visited the object
• Made a sketch
• Measured two distances
• Photo Shooting
with a Sony
Alpha DSLR
a350 camera
Creating a 3D model of a statue
Software used : AgiSoft PhotoScanner
Creating a 3D model of a statue
 Took 20 photos and 2
distances
 Inserted photos
 Selected the area around
the statue
 Aligned the photos
 Built geometry of the
statue
 Built texture
 Defined a scale, using a
distance
Digital 3D Modeling
Digital 3D Modeling
Digital 3D Modeling
Discussion
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A fascinating aspect is the fact that in the beginning
of the project the object was in the centre and only the
viewer was the one who was moving around it, but
with the use of modern software and low cost
equipment it became possible for the viewer to be the
one who rotates the object.
Conclusions
 The Excellence in Photogrammetry for Open Cultural
Landscape & Heritage Education project gave a chance
to develop new skills, by learning very modern and
useful software. The purpose of the project was to
create a 2D Model, using the VeCAD SoftWare and a
3D Model with the help of PhotoModeler Scanner
Software and PhotoScan Software.
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An important aspect of the software is the fact that
gives the opportunity to see a 3D model, which can be
used for many purposes. One of these is the
restoration of objects by the archeologists.
Conclusions
 Also a benefit of the software is that it does not require
a lot of preparation, needing only to have a camera
with at least 3 mega pixels, which is calibrated, a
measuring tape and a total station. The process of the
data does not take a long time if
 all the equipments needed for the software to work are
in place. The software also gives the chance to compare
the automatic solutions to the manual ones.
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The importance of the projects reflects in the
practical usefulness of the software in order to create
2D and 3D models of objects, using low cost
photogrammetry and equipment.
Acknowledgements
 Group 3 members came to Thassos with the EPOCHE 2013
LLP ERASMUS IP in order to produce digital 3D models of
the objects with historical interest. The project was
financed by the European Union.

First of all, group 3 members would like to thank the
Kavala Institute of Technology, Department of Landscape
Architecture for their support, in providing guidance and
generosity for all the software used during the project. Also
we would like to thank the ERASMUS IP for the
opportunity they have given us. We would like to especially
thank the professional staff of the Kavala Institute of
Technology, Department of Landscape Architecture, for
their assistance during the project, Mr. Styliadis, Mr.
Sechidis, Mr. Vassilios Tsioukas for their dedication to the
project and for their participation.
Acknowledgements
 We express our sincere gratitude to Dr. Tamás Jancsó,
Mr. Gergely László, Mr. Jan ERDELYI, Mr. Alojz
KOPACIK, Mr Herban Sorin, Mrs. Carmen Grecea,
Mrs. Vilceanu Beatrice, Mrs. Popa Alexandra for their
guidance and help. Without them our projects would
not have been able to achieve the best quality. Also the
group 3 members wish to thank one more time the
Kavala Institute of Technology, Department of
Landscape Architecture for their effort to make this
experience unique, productive and agreeable
Bibliography & References
 1. Prof. Athanasios STYLIADIS
(Historical photography-based Computer-Aided Architectural Design:
Demolished buildings information modeling with reverse engineering
functionality)
 2.Prof. Athanasios STYLIADIS
(Image-based 3D Modeling Close-Range Photogrammetry: Extraction of 3D
Geometry & Quality Information)
 3 Prof. Tamás JANCSO
(3D modelling in the terrestrial photogrammetry
 4.Dr.-Ing. Laszlo GERGELY
3D Gis Solution applied in surveying engineering
 5.A/Prof. Dr.-Ing. Sorin HERBAN & Prof. Dr.-Ing. Carmen GRECEA
Excellence in Photogrammetry for Open Cultural Landscape &
HeritageEducation
 "Politehnica" University of Timisoara Presentation
Bibliography & References
 6.Lecturer Dr.-Ing. Alexandra POPA
Low Cost Photogrammetry: Creating, Integrating and Visualization of 3D
Models Using Google Platform File
 7. http://la.teikav.edu.gr/epoche/
 8. http://www.geosolution.com/
 9.http://www.getsurveying.com/
 10. http://www.imaging-resource.com/
 11. http:// www.wikipedia.org
Appendix A’: Description & Historical
Data/Information of the Target Monuments
 The war memorial monument it is located in the square
park in Limenas and it is from the community of Thassos,
in the memory of the fallen soldiers
Appendix A’: Description & Historical
Data/Information of the Target Monuments
 The pillar is located also in the square park of Limenas
and it is part of an early Christian basilica church.
Appendix A’: Description & Historical
Data/Information of the Target Monuments
 The “Crouching Lion” is a statue of a lion, located in the
garden of the Archaeological Museum of Thasos.
Appendix B’: The 3D Modeler & The
VeCAD SoftWare
 The VeCAD Software
VeCAD is a 2D vector graphics library. You can use it to create your own
32 bit Windows-based CAD/GIS applications written in the popular Visual
IDE languages. The Library is completely documented and source code
boilerplate examples are furnished in VC++, BC++, C++ Builder, Delphi
and Visual Basic. VeCAD supports its own native 'VEC' format,
import/export DXF, HPGL, CNC and support for the direct insertion of
bitmap objects. Some of it is many features include great snapping tools, a
unique multi-page data format, and, precision control over layers, line types,
colors, line widths, view-ports, and text styles. The VeCAD, created
originally by Oleg Kolbaskin, has been modified by Dr. Vassilios Tsioukas,
to perform basic photogrammetric processes
Appendix B’: The 3D Modeler & The
VeCAD SoftWare
 PhotoModeler Scanner is a 3d scanner that provides results similar to a 3d
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laser scanner. This 3d scanning process produces a dense point cloud
(Dense Surface Modeling, DSM) from photographs of textured surfaces of
virtually any size.
PhotoModeler Scanner is a sophisticated tool to build accurate Dense
Surface Models and get measurements from your photos. Use
PhotoModeler Scanner to build:
Dense Surface Models where a large number of 3D points are needed.
Models that traditionally would require a 3d laser scanner
Scale-independent object modeling - model small objects or big scenes
By combining SmartMatch technology and DSM the efficiency of
PhotoModeler Scanner really shines.
Appendix B’: The 3D Modeler & The
VeCAD SoftWare
 Agisoft Photoscan
 Agisoft PhotoScan Pro allows to generate high resolution georeferenced
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orthophotos (up to 5 cm accuracy with GCP) and exceptionally detailed
DEMs / textured polygonal models. The fully automated workflow enables
a non-specialist to process thousands of aerial images on a desktop
computer to produce professional class photogrammetric data.
Aerial and close-range triangulation
Point cloud generation (sparse / dense)
Polygonal model generation (plain / textured)
Setting coordinate system
Digital Elevation Model (DEM) generation
True orthophoto generaton
Georeferencing using flight log and / or GCPs
Multispectral imagery processing
EPOCHE 2013 - The Group “C” members
 Simina CIOCAN [UPT, RO] [email protected],
was born in 1991, in Reșița City, Caraș - Severin
County, Romania and studies at ”Politehnica”
University of Timișoara, Faculty of Construction,
Section Geodesy, Specialty Surveying and Land
Measurements. She is interested in sports, travelling,
reading.
 Istvan VEGH [UWH-GEO, HU] ,
[email protected], was born in 1990, in Mor
City, Fejer County, Hungary and studies at
University of West Hungary, Faculty of
Geoinformatics, Speciality Surveying. He is
interested travelling, meeting new people and sports
for example riding motorcycles.
 Alexandru Ionel GĂZDAC [UAB, RO]
[email protected] was born in 1991, in Tîrgu
Mureș City, Mureș County, Romania and studied at “1
Decembrie 1918” University of Alba Iulia, Faculty of
Science, Section Surveying and Land Measurements. He
is interested in sports.
 Klára MARTVOŇOVÁ [STU Svf, SK]
[email protected] was born in 1990, in
Dolný Kubín, Slovakia and studied at Slovak University
of Technology in Bratislava in Faculty of Civil
Engineering. She is interested in history.
 Stefanos Athanasios BERGOUNIS [TEI-K, GR]
[email protected] was born in 1987 and grew
up in Athens. He studied Landscape Architecture in
Greece and is interested in computer programming and
building.
THANK YOU FOR WATCHING !

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