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Close-range imaging, long-range vision

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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:
1 Online-Ressource (xii, 621 Seiten)
Year of publication:
2002
Place of publication:
Thessaloniki
Publisher of the original:
Publ. ZITI
Identifier (digital):
1067858350
Illustration:
Illustrationen
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)
Corporations:
Symposium Close-Range Imaging, Long-Rang Vision, 2002, Kerkira
International Society for Photogrammetry and Remote Sensing, Technical Commission Close Range Techniques and Machine Vision
Technikon Epimeltrion ts Hellados (Griechische Kammer der Technik)
Adapter:
Symposium Close-Range Imaging, Long-Rang Vision, 2002, Kerkira
International Society for Photogrammetry and Remote Sensing, Technical Commission Close Range Techniques and Machine Vision
Technikon Epimeltrion ts Hellados (Griechische Kammer der Technik)
Founder of work:
Symposium Close-Range Imaging, Long-Rang Vision, 2002, Kerkira
International Society for Photogrammetry and Remote Sensing, Technical Commission Close Range Techniques and Machine Vision
Technikon Epimeltrion ts Hellados (Griechische Kammer der Technik)
Other corporate:
Symposium Close-Range Imaging, Long-Rang Vision, 2002, Kerkira
International Society for Photogrammetry and Remote Sensing, Technical Commission Close Range Techniques and Machine Vision
Technikon Epimeltrion ts Hellados (Griechische Kammer der Technik)
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:
ENHANCED MULTI-CLUSTER ANM FOR STEREO MATCHING M. Sakamoto, W. Lu, Y. Kosugi
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

[ING 
3-0016, Japan - 
4259, Nagatsuta-cho, 
Surface Model 
| is still one of the most 
et, they cannot guarantee 
stereo matching problem 
a mapping technique for 
mapping in the past. It 
for application of stereo 
xecuted for examine the 
rapping results in linear 
ancement of ANM model 
roves mapping results by 
"his approach is effective 
ot detected satisfactorily. 
G WITH ANM 
matching algorithms such 
mplate matching, feature- 
ature points, edges and so 
h is also known as optical 
the stability of matching 
used in combination with 
xr relaxation of matching 
nous approach is Dynamic 
ensures unique solution by 
1e system. Most of these 
the assumption of smooth 
onceptual model for abrupt 
tion process for matching 
lapping (ANM) adopted in 
for the control of self- 
network model, and here 
lems. This approach has a 
ssumption based matching 
, ANM evaluates matching 
pagates its influence to the 
| Coincidence Enhancement 
| rule for the explanation of 
in extension of Hebb's rule 
(Kosugi, 1993). This principle can realize by competition and 
consensus process and its iterative feedback process for 
activation and stability of bond strength between neurons. In 
stereo matching problems, this approach is used for finding the 
correspondence between sub-areas in stereo images. Figure 1 
illustrates the main concepts of ANM approach. 
2.2.1 Competition Process: Let the position of local sub- 
areas in a pair of stereo images be xj; and y; respectively, where 
suffix i and j are grid number of sub-area in images, and feature 
value in each area be f(x), g(y) respectively, and the iteration 
number of process be k. Then we can express the difference 
evaluation function as follows. 
Fa -|res «aec D 
ld; ,9 2 (Ax*, Ay), Ax*, Ay »0 (2) 
  
      
where dj; is the mapping or shift vector between two images, 0 
is a quantity which regulates the search area size, Ax and Ay are 
positive constant. 
For feature values, we can use the brightness of a pixel, or a 
vector sum of multiple criterions. Also image similarity 
function such as cross correlation function might be used 
instead of difference equation. 
In competitive process, each sub-area independently searches 
for the optimal mapping position where dj gives the minimum 
error e; with Equation (3) according to the output of evaluation 
function (1) in the condition of Equation (2), thus forming 
competitive shift vectors. 
e; - min(F(x;)) (3) 
2.2.2 Consensus Process: The competition process 
maximizes connection strength between shift vectors. On the 
other hand, consensus process maximizes information of lateral 
correlation, which takes into account of neighbouring matching 
status, and thus is also restraining process against the 
competition operation. 
For effective applications of such a mechanism, we need 
mapping models preferable to the object model under 
consideration. For example, for a model emphasizing surface 
smoothness, the continuity of shift vector needs to be 
maintained. In this case, modification of mapping can make use 
of median value which is obtained from all shift vectors in the 
consensus area as expressed in Equation (4). 
A 4 
d; - median(a* | IR) (9 
where median() is the function which returns median value, R is 
an arbitrarily shaped consensus area around the target shift 
vector. 
If emphasis on bond weight of shift vector is necessary, bond 
strength r; can be defined as Equation (5). 
s uon 
^j EP (5) 
  
A target shift vector is updated with consideration of weight Wj 
which is calculated from its bond strength with che 
neighbouring shift vectors in the consensus area. 
Ww. = 
ij S EC (6) 
R 
dj'-»w,.d; (7) 
  
For controlling the propagation of weights, also Gaussian type 
functions can be used. 
2.2.3 Feedback Process: Both of competition and consensus 
process are repeatedly performed at local sub-area in parallel to 
realize modification of mapping. 
While the feature value in both processes is a very significant 
factor, there are also other decisive factors. For example, sub- 
area shape and size for evaluation function or search area size 
have strong influence over mapping in competition process. 
Similarly in consensus operation, shape and size of consensus 
area or criterion for consensus affects the convergence 
characteristics or mapping ability of the whole process. 
Therefore these parameters need to be modified in accordance 
to iteration stages. For example, the size of consensus area S, is 
narrowed down with Equation (8) according to iteration number. 
k 
S, 2 S, exp(-25, —) (8) 
where S, is the initial area size and k,,, is the maximum 
iteration number. 
After a series of competition and consensus process, initial 
positions of shift vectors and parameters described above are 
updated and feedback process is continued till iteration reaches 
the predefined number or shifts of vectors are less than a preset 
threshold. 
Output Layer 
     
Search 
   
    
uy 
(7 = 
LY 
       
Competition 
Process 
Correlation Unit 
Unit Element 
A/ (Image Pixel) 
Output Layer oO[OBOOlOO OO O 
Input Layer oogoooo OOo 
15 + «+ Operation Processing 
OOGOOOOOOQ 
|] 
Mapping Layer 
TER, 5 A 
EN fancy [9] 
Figure 1. A principle of ANM 
    
   
     
         
        
   
   
    
  
Input Layer 
      
  
   
      
Correlation 
nit 
   
  
   
Addition 
Element ^9 
        
Consensus Area 
  
  
2.3 Problems in ANM 
Thanks to the consensus process, the continuity of stereo 
matching results by typical ANM are enhanced, which also 
means satisfactory processing result can be obtained when 
ANM is applied to natural terrain area where parallax shifts are 
smooth. On the other hand, it becomes difficult when applied to 
urban area where there are abrupt changes in parallax shifts, 
because building's edges tend to weaken by consensus process. 
To deal with this problem, we introduce a CE process with edge 
constraint or multi-clustering model approach for mapping 
region. 
2.4 ANM with Rectified Images 
In this study, image rectification is carried out for reducing 
calculation time and increasing the stability of ANM process 
with epipolar geometry, which reduces the direction of mapping 
to x-direction only. 
Photographic coordinate uv is 2-dimensional, with the origin at 
the camera's principal points of a stereo model (Figure 2). 
—85— 
  
 
	        

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Close-Range Imaging, Long-Range Vision. Publ. ZITI, 2002.
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