15-18 October 2010, Zhengzhou, Henan Province, China
Topcon Corporation
Leica Geosystems
Trimble Navigation Ltd.
FARO Technologies Inc.
RIEGL Laser Measurement Systems
Optech Incorporated

Keynote Speakers

Keynote Speaker 1

Dr. Heinz Ruther, Emeritus Professor, Fellow of the University of Cape Town, Fellow of the South African Academy of Engineering, Member of the South African Academy of Science and Honorary Member of the  South African Geomatics Institute.

   

Emeritus Professor Heinz Rüther graduated in 1969 with the Degree of Diplom–Ingenieur at the University of Bonn, Germany, joined the University of Cape Town (UCT) in 1972 and obtained his Ph.D. degree in Photogrammetry at UCT in 1982. He is a Fellow of the University of Cape Town, a Fellow of the South African Academy of Engineering, a Member of the South African Academy of Science and an Honorary Member of SAGI (South Africa Geomatics Institute).He is a past Council member of the International Society for Photogrammetry and Remote Sensing (ISPRS) (1996-2000), and former Chair of the Financial Commission of ISPRS (2000-2004) as well as former Vice President of the African Association for Remote Sensing of the Environment (AARSE).  From 1990 to his retirement in 2007, he was the Head of the Geomatics Department/Division at the University of Cape Town and Scientific Coordinator of the Lake Rukwa Basin Integrated Project in Tanzania from 2004 to 2007. Since 2005 he leads the African Cultural Heritage Sites and Landscapes Project as Principal Investigator. After his retirement he continued lecturing and supervising research students. His principal activity however is his work as Principal Coordinator of the African Heritage project.

Professor Rüther has worked on photogrammetric and surveying projects in Europe, Asia, the Middle East and especially Africa. He has extensive experience in the areas of digital photogrammetry, close range photogrammetry, precise engineering surveying and deformation analysis. He has supervised numerous MSc and PhD research projects and published more than 100 papers in scientific journals and at international conferences.

For the past years Professor Rüther’s special interest has been focused on the area of digital spatial documentation of architectural structures, heritage sites and historical landscapes with a special emphasis on Africa. He served on the executive of the International Committee for Photogrammetry in Architecture (CIPA) and is at present ISPRS representative on the CIPA committee, National CIPA delegate for South Africa and a member of ICOMOS (International Committee for Monuments and Sites), South Africa.

   
LASER SCANNING IN HERITAGE DOCUMENTATION


Heinz Ruther
School of Architecture, Planning and Geomatics
University of Cape Town
Rondebosch, Cape Town 7701, South Africa
http://www.geomatics.uct.ac.za/
E-mail: heinz.ruther@uct.ac.za

Abstract

 The presentation reports on the use of terrestrial laser scanning for the documentation of cultural heritage sites. Based on the experience gained in the scanning of nearly fifty individual structures in  heritage sites  in Africa, advantages and problem areas in laser scanning are discussed and solution are suggested where possible. Various output formats for laser scan data are suggested and examples of applications are reported.

Examples of completed 3D models and visualizations, derived from laser scans are shown and critically discussed. As component of the presentation concepts and design of the African Cultural Heritage and Landscapes database are described. This database integrates spatial and non-spatial data and focuses on architectural heritage sites and cultural landscapes. The spatial data comprises of 3D laser scans, GISs for each site and its environment, stereo images, panoramas, ground plans, elevations, section derived from laser scan, contextual photography and videos as well as 3D landscape models. The database is primarily designed as a resource for research and higher education. However, the spatial data acquired for the project can equally serve for restoration and as permanent digital record.

The project, funded by the Andrew W. Mellon Foundation, is a joined initiative of the Zamani Research Group at the University of Cape Town and JStor, New York.
 

 

Keynote Speaker 2

Dr. Ayman F. Habib, Professor and Head, Department of Geomatics Engineering, University of Calgary, Canada, Member of Canada’s National Committee for ISPRS, Chair of the ISPRS WG I/3 on Multi-platform and Multi-sensor Inter-calibration (2008-2012).

   

Prof. Habib’s research interests span the fields of terrestrial and aerial mobile mapping systems, modeling the perspective geometry of non-traditional imaging scanners, automatic matching and change detection, automatic calibration of low-cost digital cameras, object recognition in imagery, LiDAR mapping, and integrating photogrammetric data with other sensors/datasets (e.g., GPS/INS, GIS databases, multi- and hyper-spectral sensors, and LiDAR).

Over the last 10 years. Dr. Habib has supervised 20 graduate students to completion and he is the recipient of several prestigious awards such as the Duane C. Brown Senior Award from The Ohio State University (1997), Talbert Abrams “Grand Awards” from the American Society of Photogrammetry and Remote Sensing (ASPRS) in 2002 and 2008, Talbert Abrams “Second Honorable Mention” from the ASPRS in 2004, Best Paper Award from the International Society of Photogrammetry and Remote Sensing (ISPRS) in 2004, and Talbert Abrams “First Honorable Mention” from the ASPRS in 2008.

Dr. Habib is the current chair of the ISPRS WG I/3 on Multi-platform and Multi-sensor Inter-calibration. He has authored more than 200 publications and has been serving as an editorial board member for several national and international journals. His research work in the area of digital camera calibration and stability analysis has been commercialized and implemented by national and international companies in Canada, USA, Korea, Brazil, South Africa, and Taiwan.
   

AIRBORNE AND TERRESTRIAL LIDAR MAPPING: CALIBRATION, REGISTRATION, AND INTEGRATION WITH IMAGERY

 

Ayman F. Habib
Department of Geomatics Engineering
University of Calgary
2500 University Dr. NW, Calgary, Alberta, Canada T2N 1N4
Phone: +1-403-220-7105, E-mail: ahabib@ucalgary.ca
URL: http://dprg.geomatics.ucalgary.ca/Aboutus/AymanHome

Abstract

   
The availability of three-dimensional surface data is valuable for several industrial, agricultural, security, environmental, hazard assessment, and military applications. With the wide-spread adoption and improving accuracy of Differential Global Positioning Systems (DGPS) and Inertial Navigation Systems (INS), Light Detection And Ranging (LiDAR) systems onboard mobile airborne and terrestrial platforms have become the most prominent technologies for deriving surface information. Accurate recovery of such information from these systems is dependent on the quality of the navigation data as well as the accuracy of calibration procedure, which defines the calibration parameters for the individual sensors in each system as well as the mounting parameters relating such sensors (e.g., the lever arm and boresight angles relating the coordinate systems of the implemented sensors – GPS, INS, and laser scanner). This talk will introduce a unified conceptual methodology for airborne and terrestrial LiDAR system calibration. The system calibration parameters are estimated while reducing discrepancies between conjugate surface elements derived from overlapping point clouds as well as control surfaces. Such a calibration is based on the identification of conjugate surface elements in overlapping point clouds and control data. In support of this task, an overview of surface matching and registration techniques will be covered while focusing on the link between the registration primitives, the appropriate mathematical model, and the calibration process. Finally, the benefits and the challenges in incorporating imagery to aid the calibration process will be discussed. Besides the system calibration, the fusion of LiDAR point clouds and image data to generate value-added products will be discussed. Examples and experimental results from airborne and terrestrial systems will be covered in this talk.

 

 

For more information, please e-mail to terrestrial.lidar2010@gmail.com Copyright by Lidar2010, created by Jian Li