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Close-range imaging, long-range vision

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CC BY: Attribution 4.0 International. You can find more information here.

Bibliographic data

fullscreen: Close-range imaging, long-range vision

Monograph

Persistent identifier:
1067858350
Title:
Close-range imaging, long-range vision
Sub title:
proceedings of the ISPRS Commission V symposium : September 2 - 6, 2002, Corfu, Greece
Scope:
xii, 621 Seiten
Type of content:
Konferenzschrift
DOI:
10.14463/GBV:1067858350
Year of publication:
2002
Place of publication:
Thessaloniki
Publisher of the original:
Publ. ZITI
Identifier (digital):
1067858350
Illustration:
Illustrationen
Reihe:
International archives of photogrammetry, remote sensing and spatial information sciences (34,5)
Signature of the source:
ZS 312(34,5)
Language:
English
Additional Notes:
Erscheinungsdatum des Originals ist aus dem Copyrightjahr ermittelt.
Usage licence:
Attribution 4.0 International (CC BY 4.0)
Author:
Symposium Close-Range Imaging, Long-Rang Vision, 2002; Kerkira
Contributor:
International Society for Photogrammetry and Remote Sensing, Technical Commission Close Range Techniques and Machine Vision
Sponsor:
Technikon Epimelētērion tēs Ellados
Publisher of the digital copy:
Technische Informationsbibliothek Hannover
Place of publication of the digital copy:
Hannover
Year of publication of the original:
2019
Document type:
Monograph
Collection:
Earth sciences

Chapter

Title:
WGV/1: Automation for Vision Metrology Systems and Industrial Applications
Document type:
Monograph
Structure type:
Chapter

Chapter

Title:
Automated Point Measurement of Dynamic Skin Membrane Surfaces Utilizing a Dot Projection Photogrammetric Technique Gary Robertson
Document type:
Monograph
Structure type:
Chapter

Contents

Table of contents

  • Close-range imaging, long-range vision
  • Cover
  • ColorChart
  • Title page
  • ISPRS Council 2000 - 2004
  • ISPRS Commission V Symposium: CLOSE-RANGE IMAGING, LONG-RANGE VISION
  • President's Invitation
  • Contents
  • WGV/1: Automation for Vision Metrology Systems and Industrial Applications
  • SOFTWARE DEVELOPMENT FOR REMOTE CONTROL OF DIGITAL METRIC CAMERAS VIA LAN AND INTERNET Ingo Bock, Guenter Pomaska
  • IMPROVING THE ROBUSTNESS OF LEAST SQUARES TEMPLATE MATCHING WITH A LINE-SEARCH ALGORITHM Niclas Börlin
  • SEMI AUTOMATIC REGISTRATION OF LASER SCANNER DATA S. T. Dijkman, F. A. van den Heuvel
  • DESIGN AND IMPLEMENTATION OF A PHOTOGRAMMETRIC SYSTEM FOR CLOSE RANGE INDUSTRIAL APPLICATIONS B. Ergün’, M. O. Altan
  • GEOMETRIC INFORMATION FROM SINGLE UNCALIBRATED IMAGES OF ROADS L. Grammatikopoulos, G. E. Karras, E. Petsa
  • IMAGE-VARIANT INTERIOR ORIENTATION AND SENSOR MODELLING OF HIGH-QUALITY DIGITAL CAMERAS H. Hastedt, Th. Luhmann, W. Tecklenburg
  • REAL-TIME PHOTOGRAMMETRIC ALGORITHMS FOR ROBOT CALIBRATION J. Hefele
  • PERFORMANCE OF CIRCULAR IMAGE BLOCKS IN CLOSE-RANGE PHOTOGRAMMETRY Jussi Heikkinen
  • PHOTOGRAMMETRIC PERFORMANCE EVALUATION OF THE KODAK DCS PRO BACK Ralf Jantos, Thomas Luhmann, Jürgen Peipe, Carl-Thomas Schneider
  • METHOD FOR ON-LINE CALIBRATION FOR AUTOMOBILE OBSTACLE DETECTION SYSTEM V. A. Knyaz
  • NEW SYSTEM OF DIGITAL CAMERA CALIBRATION, DC-1000 T. Noma, H. Otani, T. Ito, M. Yamada, N. Kochi
  • ALGORITHM DEVELOPMENTS FOR AUTOMATED OFF-LINE VISION METROLOGY J. O. Otepka, H. B. Hanley, C. S. Fraser
  • ACCURACY OF DENSE SURFACE MEASUREMENTS IN AN INTEGRA TED PHOTOGRAMMETRY AND MACHINE VISION FRAMEWORK H. Papadaki
  • A NEW “DIGITAL FILTER” FOR EXTRACTING CONJUGATE POINTS ON EPIPOLAR STEREO IMAGES P. Patias, V. Tsioukas, L. Sechidis
  • Automated Point Measurement of Dynamic Skin Membrane Surfaces Utilizing a Dot Projection Photogrammetric Technique Gary Robertson
  • ENHANCED MULTI-CLUSTER ANM FOR STEREO MATCHING M. Sakamoto, W. Lu, Y. Kosugi
  • CHARACTERISATION AND TRACKING OF MEMBRANE SURFACES AT NASA LANGLEY RESEARCH CENTER Mark R. Shortis, Stuart Robson, Richard S. Pappa, Thomas W. Jones and William K. Goad
  • STUDY ON VISUAL TRAVERSE BY LASER SCANNING SENSOR R. Tanaka, H. Yokoyama, H. Chikatsu
  • AUTOMATIC HIERARCHICAL OBJECT DECOMPOSITION FOR OBJECT RECOGNITION M. Ulrich, A. Baumgartner, C. Steger
  • COMPARISION OF DIFFERENT SENSOR TYPES AND VALIDATION OF AN APPROACH FOR MULTI SENSOR FUSION A. Wendt, C. Rosing, M. Weisensee
  • USE OF DLT IN PHOTOGRAMMETRIC METROLOGY Zeroual I. Liazid A.
  • RECONSTRUCTING TEXTURED CAD MODEL OF URBAN ENVIRONMENT USING VEHICLE-BORNE LASER RANGE SCANNER AND LINE CAMERAS Huijing Zhao, Ryosuke Shibasaki
  • CAR COLLISION AVOIDANCE SYSTEM BASED ON ORTHOPHOTO TRANSFORMATION S. Yu. Zheltov, A. V. Sybiryakov, O. V. Vygolov
  • WGV/2 Scene Modelling and Virtual Reality
  • SINGLE IMAGE AND TOPOLOGY APPROACHES FOR MODELING BUILDINGS O. Al Khalil & P. Grussenmeyer
  • TOWARDS AUTOMATED SEGMENTATION OF DENSE RANGE SCANS Jan Böhm
  • SEMI-AUTOMATIC 3D RECONSTRUCTION OF OCCLUDED AND UNMARKED SURFACES FROM WIDELY SEPARATED VIEWS Sabry F. El-Hakim
  • Dynamic trapezoidal maps for coarse perspective models in indoor scenes Javier Finat, Margarita Gonzalo-Tasis, Maria J. Antolinez Susana Aguilar
  • Title: A fast self-organized iconic segmentation and grouping based in color Javier Finat, Margarita Gonzalo-Tasis and Alejandro Viloria.
  • LASER SCANNER APPLICATION ON COMPLEX SHAPES OF ARCHITECTURE. PROFILES EXTRACTION PROCESSING AND 3D MODELLING. Luigi FREGONESE [...] Cristiana ACHILLE [...]
  • FAST RECOVERY OF IMAGE ORIENTATION USING VIRTUAL URBAN MODELS Charalampos Georgiadis, Anthony Stefanidis, Peggy Agouris
  • SCENE MODELING BY USING VIDEO CAMERA Tsukasa Hosmura, Tetsuo Ohta
  • PHOTOREALISTIC OBJECT RECONSTRUCTION USING COLOR IMAGE MATCHING Yasemin Kuzu
  • FLEXIBLE 3-D MODELLING OF HOSTILE ENVIRONMENTS WITH CONSTRAINED VIEWPOINT AND MULTIPLE UNKNOWNS Christophe Leroux, Philippe Even, Anne Lottin, Rodolphe Gelin, Jean Marc Idasiak, Jean François Boissonneau, Michel Jeanjacques
  • Bundle Orientation and 3-D Object Reconstruction from Multiple-Station Panoramic Imagery Thomas Luhmann, Werner Tecklenburg
  • A NEW METHOD TO CREATE A GEOMETRICALLY CORRECTED IMAGE OF A DIGITAL CAMERA Ryuji Matsuoka, Kiyonari Fukue, Kohei Cho, Haruhisa Shimoda, Yoshiaki Matsumae, Kenji Hongo, Naoki Shirai
  • VIEW SYNTHESIS WITH THE TRIFOCAL TENSOR FROM UNCALIBRATED IMAGERY Helmut Mayer, Wolfram Büchner, Thomas Riegel
  • MOBILE MAPPING FROM STEREO OMNI-DIRECTIONAL VISION S. Ozawa, I. Miyagawa, K. Wakabayashi, T. Arikawa
  • A GENERIC 3D MODEL FOR AUTOMATED BUILDING ROOF RECONSTRUCTION S. Scholze, T. Moons, L. Van Gool
  • CALIBRATION OF AN SEM, USING A NANO POSITIONING TILTING TABLE AND A MICROSCOPIC CALIBRATION PYRAMID Olaf Sinram, Martin Ritter, S. Kleindiek, A. Schertel, H. Hohenberg and J. Albertz
  • 3D OBJECT RECONSTRUCTION IN CLOSE RANGE PHOTOGRAMMETRIC PROBLEMS E. Stylianidis, P. Patias
  • EXTRACTION OF BUILDING FOOTPRINTS FROM AIRBORNE LASER SCANNER DATA AND ORTHO IMAGE Hiroshi TAKEDA Naoko KURISAKI Wentao CHE
  • TOWARDS AUTOMATIC RELATIVE ORIENTATION FOR ARCHITECTURAL PHOTOGRAMMETRY Frank A. van den Heuvel
  • KNOWLEDGE-BASED AUTOMATIC 3D LINE EXTRACTION FROM CLOSE RANGE IMAGES S. Zlatanova and F. A. van den Heuvel
  • WGV/3 Medical Image Analysis and Human Motion
  • MEASUREMENT AND MODELING OF HUMAN FACES FROM MULTI IMAGES Nicola D'Apuzzo
  • REPRESENTING THE HUMAN VASCULAR SYSTEM WITH THE USE OF X-RAY PICTURES Á. Detrekói, K. Fekete, Z. Tóth, O. Alhusain, A. Juhász, I. Stuber, Á. Rakusz
  • 3D Brain Volume and Surface Visualization with CT and MR Images for Diagnosing Abnormal Structures: Integration with Photogrammetric Techniques (EXTENDED SUMMARY) S. Dogan, M. O. Altan
  • MARKERLESS FULL BODY SHAPE AND MOTION CAPTURE FROM VIDEO SEQUENCES P. Fua, A. Gruen, N. D'Apuzzo, R. Plänkers
  • SONOGRAPHIC TECHNICAL ASPECTS AND IMAGING FEATURES IN THE EVALUATION OF ACUTE SCROTAL PATHOLOGY IN CHILDREN Katsimba D., Tzouveleki M., Miliou Th., Christopoulos S.
  • A ROBUST PHOTOGRAMMETRIC SYSTEM FOR WOUND MEASUREMENT A. Malian, F. A. van den Heuvel, A. Azizi
  • ON THE APPLICATION FOR ROAD STRUCTURE IN DYNAMIC ANALYSIS OF HUMAN MOTION USING HVT SYSTEM T. Odake, H. Chikatsu
  • A CONCEPT WORK FOR AUGMENTED REALITY VISUALISATION BASED ON A MEDICAL APPLICATION IN LIVER SURGERY Tim Suthau, Marcus Vetter, Peter Hassenpflug, Hans-Peter Meinzer, Olaf Hellwich
  • ANALYSIS OF TIME-SPACE EFFECT OF WALKING USING ACCELEROMETERS AND GYRO SENSOR SYSTEM Masako Tsuruoka, Yuriko Tsuruoka, Ryosuke Shibasaki, Yoshifumi Yasuoka, Shunji Murai
  • WGV/4 Image Analysis and Spatial Information Systems for Applications in Cultural Heritage
  • NEW FRONTIERS TO ARCHITECTURAL SURVEY: LASER SCANNER 3D Prof. L. Andreozzi, L. Barnobi, A. Giuffrida, C. Santagati
  • DIGITAL ORTOPHOTO OF SAN MARCO’S BASILICA IN VENICE G. Auditore, D. Miniutti, L. Pilot
  • THE PROMOTION OF CULTURAL HERITAGE THROUGH INTERNET USING ADVANCED AUDIO-VISUAL INFORMATION: THE VENETIAN CASTLES OF PELOPONNISOS E. Bakourou, V. Tsioukas, I. Katzougraki, E. Stylianidis, K. Papadimitriou, P. Patias
  • LASER APPLICATIONS FOR 3D SURVEY OF CULTURAL HERITAGE C. Balletti, F. Guerra
  • GIS DESIGN USING HIGH GEOMETRIC RESOLUTION SATELLITE IMAGES AND HYPERSPECTRAL AIRBORNE DATA P. Boccardo, F. Giulio Tomolo, A. Spanò
  • AUTOMATIC REGISTRATION OF 3-D VIEWS R. Bologna, A. Guarnieri, M. Minchilli, A. Vettore
  • HIGH RESOLUTION DIGITAL IMAGE ORIENTATION USING LASER SCANNER DATA Leandro Bornaz, Andrea Lingua, Fulvio Rinaudo
  • WEB ARCHAEOLOGICAL DATA MANAGEMENT SYSTEM FROM UNDERWATER PHOTOGRAMMETRY. AN APPLICATION ON TWO ROMAN WRECKS Marco Canciani, Pamela Gambogi, Pierre Drap
  • SURVEYING METHODS OF ARCHITECTURAL HERITAGE FOR A GIS IMPLEMENTATION M. Caprioli, R. Bologna, A. Scognamiglio
  • PERFORMANCE EVALUATION OF RECENT HIGH RESOLUTION AMATEUR CAMERAS AND APPLICATION TO MODELING OF HISTORICAL STRUCTURE Hirofumi Chikatsu, Yoichi Kunii
  • UNDERWATER PHOTOGRAMMETRY AND XML BASED DOCUMENTATION SYSTEM: The case of the 'Grand Ribaud F' Etruscan wreck Pierre Drap, Emmanuel Bruno, Luc Long, Anne Durand, Pierre Grussenmeyer
  • ‘ARPENTEUR’ AS WEB BASED PHOTOGRAMMETRIC PACKAGE: TOWARDS INTEROPERABILITY THROUGH A XML STRUCTURE FOR PHOTOGRAMMETRIC DATA Pierre Drap, Pierre Grussenmeyer, Gilles Gaillard
  • USING 3D GIS FOR DOCUMENTATION OF HISTORICAL MONUMENT Zaide DURAN & Gönül TOZ
  • NON-METRIC BIRD'S EYE VIEW Prof. A. Georgopoulos, M. Modatsos
  • RECONSTRUCTION OF THE GREAT BUDDHA OF BAMIYAN, AFGHANISTAN A. Gruen, F. Remondino, L. Zhang
  • URBAN CONSERVATION STUDY BASED ON COMPUTER AIDED DESIGN TECHNIQUES:A CASE OF ZEYREK/ISTANBUL N. Zeren Gülersoy, T. K. Koramaz
  • DIGITAL PHOTOGRAMMETRY FOR THE ON SITE DOCUMENTATION OF THE OASIS OF SIRWAH IN THE REPUBLIC OF YEMEN J. Heckes, A. Hornschuch, U. Kapp, N. Röring
  • COMBINATION OF PHOTOGRAMMETRY AND EASY-TO-USE NON-METRIC METHODS FOR THE DOCUMENTATION OF ARCHAEOLOGICAL EXCAVATIONS Guido HEINZ
  • RECONSTRUCTION OF ANCIENT OLYMPIA IN 3D COMPUTER GRAPHICS A Landscape Analysis of Classical Site Juko ITO, Kohei IWABUCHI
  • THE DIGITAL DATABASE IN ARCHAEOLOGY Paul F. Jacobs
  • DOCUMENTATION AND VISUALIZATION OF HISTORICAL CITY CENTERS: A MULTI-SENSOR APPROACH FOR A NEW TECHNOLOGICAL PARADIGM P. Patias, G. Karapostolou, P. Simeonidis
  • GEOMETRIC CALIBRATION OF A VISIBLE-NIR VIDEO CAMERA J. L. Lerma, L. A. Ruiz, F. Buchón, R. Pons, M. Galindez
  • Application of Computer Technic in the Reconstruct of Chinese Ancient Buildings Deren Li, Yixuan Zhu, Jie Yang, Fuling Bian
  • VIRTUALISATION OF AN ARCHAEOLOGICAL SITE E. S. Malinverni, G. Gagliardini, G. Fangi
  • THEORETICAL AND PRACTICAL ASPECTS OF ARCHAEOLOGICAL ORTHOIMAGING D. Mavromati, E. Petsa, G. E. Karras
  • New Perspectives for Environmental Archaeological GIS Yoshito MIYATSUKA
  • 3D MODELS GENERATION FROM LASER SCANNER DATA TO SUPPORT DIGITAL ORTHOPHOTO 3D: The mosaic surface of the floor of S. Marcus Basilica in Venice. Carlo MONTI [...] Raffaella BRUMANA [...] Luigi FREGONESE [...] Carlo SAVI [...] Christiana ACHILLE [...]
  • Experimentation of a georeferencing methodology for the Cultural Heritage of Lombardia (Italy) Carlo MONTI [...] Raffaella BRUMANA [...] Carlo SAVI [...] Luigi FREGONESE [...] Christiana ACHILLE [...] Giada MONTI [...] Caterina BALLETTI [...] Giovanni AUDITORE [...]
  • DIGITAL INFORMATION UTILIZATION ON PRESERVATION MANAGEMENT OF CULTURAL PROPERTIES Syozo NISHIMURA, Sunaryo SUMITRO
  • IMAGE COMBINATION INTO LARGE VIRTUAL IMAGES FOR FAST 3D MODELLING OF ARCHAEOLOGICAL SITES Maria Pateraki, Emmanuel Baltsavias, Petros Patias
  • SATELLITES IMAGES OF VERY HIGH RESOLUTION ON THE STUDY OF MONUMENTS AND HISTORICAL CENTERS AND THEIR WIDE SURROUNDINGS Patmios E, Lazaridou M.
  • RECONSTRUCTION OF THE ROMAN WAREHOUSES IN ANCONA HARBOUR Fausto Pugnaloni and Roberto Papa
  • A SOLUTION FOR IMAGE ORIENTATION OF CLOSE RANGE BLOCKS M. Scaioni, G. Forlani
  • MAPPING EXCAVATIONS AND ARCHAEOLOGICAL SITES USING CLOSE RANGE PHOTOS K. Tokmakidis, D. Scarlatos
  • FITTING, PORTAYAL AND MAPPING FOR THE PRODUCTION OF 2nd ORDER SURFACES PHOTOMOSAICS Artemis Valanis
  • DOCUMENTATION of HISTORICAL SITES by COMBINING MODERN PHOTOGRAMMETRIC and LASER TECHNOLOGY E. Vozikis, C. Boletis, J. Petrogonas
  • POTENTIAL OF GIS FOR ENVIRONMENTAL ARCHAEOLOGY: A CASE STUDY IN AICHI, JAPAN- Nobuya Watanabe, [...] Hiroyuki Yoshida, [...]
  • CHALLENGES AND SOLUTIONS ON THE GENERATION OF DIGITAL SURFACE MODELS OF FACADES USING IMAGE PROCESSING TECHNIQUES Albert Wiedemann
  • REFIND ORTHO IMAGING AND MODELLING OF RELICS USING HIGH RESOLUTION AMATEUR CAMERA Hiroshi YOKOYAMA, Hirofumi CHIKATSU
  • WGV/5 Quick Response and Distributed Computing for Close-Range Applications
  • AUTOMATED APPEARANCE-BASED BUILDING DETECTION IN TERRESTRIAL IMAGES Jan Böhm, Norbert Haala, Peter Kapusy
  • INVARIANT REPRESENTATIONS FOR PUNCTUAL AND LOCAL GROUPING CRITERIA IN GEOGRAPHIC INFORMATION SYSTEMS Isidro de Paz, Javier Finat and Margarita Gonzalo-Tasis
  • AUTOMATIC CITY MODELLING BY ROBUST LINE MATCHING USING HIGH VISION AIR-BORNE IMAGERY Y. Kunii, H. Chikatsu
  • A NEW ALGORITHM FOR IMAGE RETRIEVAL FROM IMAGE SEQUENCE Hongchao Ma, Deren Li
  • WET LAND AND SALT CRUST FORMATION BASED ON LANDSAT TM DATA Alavi Panah, S.K.
  • SUMMARIZING THE CONTENT OF MOTION IMAGERY DATASETS Anthony Stefanidis, Peggy Agouris, Panos Partsinevelos
  • OPTIMIZING POINT NETWORKS FOR CLOSE-RANGE PHOTOGRAMMETRY: FIRST TEST RESULTS E. Tung, J. Friedrich, F. Karsli, E. Ayhan
  • WGV/6 Visualization and Animation
  • THE WELL PROMISING FLASHPIX IMAGE FORMAT O. Georgoula, P. Patias
  • THE MEDIEVAL FORTRESS KUFSTEIN, AUSTRIA - AN EXAMPLE FOR THE RESTITUTION AND VISUALIZATION OF CULTURAL HERITAGE Klaus Hanke, Michael Oberschneider
  • ANALYSIS OF DIFFERENT CALIBRATION MODELS FOR SEE-THROUGH HEAD-MOUNTED DISPLAYS USED FOR AUGMENTED REALITY APPLICATIONS Johannes Leebmann
  • COMPUTER AIDED MAKING UP FOR HUMAN FACE USING GEO-SIMULATOR Shunji MURAI, Akira TSUTUMI, Masanobu KOBAYASHI, Yousuke SEKI
  • ON DEVELOPMENT OF MANAGEMENT AND PLAN SYSTEM FOR MAP PRODUCTION Kazuya NAKANO, Kosuke TSURU
  • LASER SCANNING AND VISUALISATION OF AN AUSTRALIAN ICON: NED KELLY'S ARMOUR Cliff Ogleby
  • 3D-VISUALIZATION TECHNIQUES - THE COMPLETE LIST - W. Schuhr, E. Kanngieser
  • A NEW PERSPECTIVE FOR THE VISUALIZATION OF CARTOGRAPHIC DATA V. Tsioukas, K. Papadopoulos, M. Daniil, E. Daniil
  • ICWG V/III Image Sequence Analysis
  • DEVELOPMENT OF TECHNIQUES FOR VEHICLE MANOEUVRES RECOGNITION WITH SEQUENTIAL IMAGES FROM HIGH ALTITUDE PLATFORMS T. Fuse, E. Shimizu, R. Maeda
  • CONSTRUCTION OF CITY MODEL BY MOTION Yousuke Kashimoto, Heitoh Zen
  • METHOD OF THE CURRENT PITCH ANGLE VALUE CALCULATION ON THE BASIS OF PASSIVE SENSORS DATA PROCESSING IN INTELLIGENT DRIVING SYSTEMS V. M. Lisitsyn, K. V. Obrosov, A. A. Spiridonov, S. V. Tikhonova
  • VIDEO-TO-3D Marc Pollefeys, Luc Van Gool, Maarten Vergauwen, Kurt Cornelis, Frank Verbiest, Jan Tops
  • CAMERA CALIBRATION BY ROTATION Petteri Pöntinen
  • IMAGE SEQUENCE ANALYSIS FOR HUMAN BODY RECONSTRUCTION Fabio Remondino
  • IMAGE SEQUENCE MATCHING FOR THE DETERMINATION OF THREE-DIMENSIONAL WAVE SURFACES F. Santel, C. Heipke, S. Könnecke, H. Wegmann
  • 3D PARTICLE TRACKING VELOCIMETRY BASED ON IMAGE AND OBJECT SPACE INFORMATION J. Willneff
  • URBAN 3D MAPPING FROM AERIAL IMAGE SEQUENCES Guoqing Zhou
  • Keywords Index
  • Authors Index
  • Cover

Full text

  
1.1 Hardware System 
The dot projection process excels in areas of dynamic 
measurement the system described in this paper was designed 
for real-time measurement. The basic criteria of the system was 
to measure and model both stationary (static) structures as well 
as nonstationary (dynamic or deploying) structures at a frame 
rate of at least 900 frames per minute for a continuous time 
period of at least 15 minutes. The 3d object point coordinates 
are obtained by two synchronized instrumentation grade digital 
cameras each interfaced to a high-speed digital frame grab 
board for bandwidth. The system is designed to allow for multi- 
processor, multi disk system that will support multiple camera 
units, that is interfaced to a custom projection system. The 
projectors are configured to operate in different environments. 
The projector used in this study can operate in a harsh 
environment, primarily for this case to work inside a vacuum 
  
Figure 4 Projector 
The projector can be configured with several dot pattern sizes, 
the least will display up to 4000 dots. The system can be 
configured in several ways real time of buffered frame store 
then read. The buffer frame/disk store method was configured 
for this system due to the 15 frame per second data acquisition 
from the two cameras. The points on the left and right image 
are automatically windowed and read. The software utilizes a 
multi target extraction tool for measurement. Prior to 
automated measurement the registration of the two cameras 
must be made to determine camera position and orientation. 
One method is to use a target template this provides for 
automated calibration and camera registration with the target 
extraction tool. 
° ° 
° e 
e $ 
. ° ° . 
  
Figure 5 Calibration Registration template 
1.2 Automated Measurement 
The stereo matching principal used in ShapeCapture and 
ShapeMonitor software is based on epipolar geometry as 
shown in Figure 6. 
The object point P, the two projection centers of the two 
images, O1 and O2, form a plane (the epipolar plane) that 
intersects the two image planes. As a result, two epipolar lines 
are created. The matched points fall on these lines. Once the 
camera positions and orientations at the two image locations 
are known, the equations of the epipolar lines become known. 
We will now start by taking the coordinate pl in the left image 
and look for point p2 on the epipolar line in the right image. 
Since there could be other points falling on the same line, we 
need additional constraint to make sure we select the 
appropriate point. 
N 
e 
b 
YT zi 
  
  
  
Ÿ 
Figure 6 Epipolar Model 
Once the calibration and registration is set the digital image 
frames from the two cameras are dumped into the memory 
buffer, id coded and saved on disk. The program automatically 
opens the coded files, the thousand of targets extracted, stereo 
matched, and coordinates computed and the file closed in 
approximately 2 seconds then the next set is opened. The 
program data acquisition module can be configured for the 
overall number of frames and run unattended. 
The system was original designed for measurement of thin skin 
membranes for deployment inside a vacuum chamber but it 
works well on other surfaces including static subjects. 
2.0 THIN MEMBRANE SURFACES 
Measurement of thin membrane surfaces presents problems 
using previous photogrammetric techniques such as retro 
reflective targeting. The surface material can sometimes be so 
thin that touching the surface can damage the material 
especially in placement of targets. Also if the object is 
compacted and is being deployed (inflated) over a period of 
time it would be impossible to monitor the targets during 
deployment. Figure 7 illustrates a thin membrane where 
wrinkle characteristics are being monitored. Figure 8 displays 
the modeling of the skin surfaces for deviations and wrinkles. 
-80— 
  
In ad 
conv 
data : 
probl 
occui 
to wc 
dispe 
Figur 
thin ı 
mour 
 
	        

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