PE&RS December 2004

Leica Geosystems GIS and Mapping provided this month’s cover image, which demonstrates the capabilities of the ADS40 Airborne Digital Sensor. The three images on the left demonstrate its scanning approach to collecting data. Using an innovative three-line scanning technique, this digital sensor is able to simultaneously capture three different views – forward, nadir and backward, permitting the viewer to see objects, like these grain silos, from three different angles.

The three-line principle is based on the proven satellite design of a pushbroom type sensor. Unlike frame cameras, this pushbroom approach creates a continuous “carpet” of image pixels, which can have a spatial resolution of up to five centimeters. The image on the right is an example of this pixel “carpet”, taken over the Waldkirch area of Switzerland. The sensor is also able to simultaneously capture Panchromatic, RGB and Near-Infrared images, removing the need for additional flights to capture such data. The advantages of an all-digital workflow, with no chemical film processing or scanning, are tremendous.

For more information, contact Leica Geosystems GIS & Mapping, LLC, Phone: +1 404-248-9000, e-mail: info@gis.leica-geosystems.com, web: gis.leica-geosystems.com.

Highlight Article

1325 Three-Line Sensors: Rapid, Efficient Digital Imagery (518Kb Adobe PDF)
Peter Fricker

Columns & Updates
1328 Direct Georeferencing — A European Network on Digital Camera Calibration (157Kb Adobe PDF)
1335 Grids & Datums — Republic of Iceland (83Kb Adobe PDF)
1337 Book Review — Foundations of Image Science
1338 Headquarters News — ASPRS Vice Presidential Candidates for 2005, ASPRS Announces the Launch of The ASPRS Foundation, Inc., The ASPRS – ISPRS Connection, and ASPRS Proposed Bylaws Revision
1342 Industry News

Foreword
1351 Special Issue on Linear Feature Extraction From Remote Sensing Data for Road Network Delineation and Revision
Raad A. Saleh

Peer-Reviewed Articles

1353 User-Centric Evaluation of Semi-Automated Road Network Extraction
Wilson Harvey, J. Chris McGlone, David M. McKeown, and John M. Irvine

An in-depth usability evaluation of ROADMAP, an automated road network extraction system, was performed and the results compared to manual extraction methods.

1365 Road Extraction Using SVM and Image Segmentation
Mingjun Song and Daniel Civco

A unique approach for road extraction from Ikonos imagery utilizing support vector machine and image segmentation was developed.

1373 A Framework for Automated Extraction and Classification of Linear Networks
G. Priestnall, M. J. Hatcher, R. D. Morton, S. J. Wallace, and R. G. Ley

A control strategy for automated linear feature extraction utilizing contextual knowledge and an object-oriented spatial database.

1383 A Review of Techniques for Extracting Linear Features from Imagery
Lindi J. Quackenbush

An overview of methods used for extracting linear features from imagery with consideration of the relative benefits of manual versus automated processing and the range of image types used.

1393 A Robust Method for Semi-Automatic Extraction of Road Centerlines Using a Piecewise Parabolic Model and Least Square Template Matching
Xiangyun Hu, Zuxun Zhang, and C. Vincent Tao

A piecewise parabolic representation of the road centerline is developed; by incorporating the least square template matching with deformable road templates, semi-automatic extraction of road centerlines from spatial imagery becomes robust.

1399 A Parameterization Model for Transportation Feature Extraction
Michael E. Hodgson, Xingong Li, and Yang Cheng

An automated solution to the parameterization problem of road feature extraction models is presented and demonstrated.

1405 Automated Road Extraction from High Resolution Multispectral Imagery
Pete Doucette, Peggy Agouris, and Anthony Stefanidis

A novel methodology is presented for fully automated road extraction that exploits spectral content from high resolution multispectral images.

1417 Tracking Road Centerlines from High Resolution Remote Sensing Images by Least Squares Correlation Matching
Taejung Kim, Seung-Ran Park, Moon-Gyu Kim, Soo Jeong, and Kyung-Ok Kim

A description of a semi-automatic algorithm for tracking road centerlines from satellite images at 1 meter resolution through least squares template matching schemes.

1423 A Wavelet Transform Based Method for Road Centerline Extraction
Tieling Chen, Jinfei Wang, and Kaizhong Zhang

An introduction to wavelet transform based methodology for road centerline extraction from high-resolution Ikonos satellite images.

1433 Extraction of City Roads Through Shadow Path Reconstruction Using Laser Data
Pan Zhu, Zhong Lu, Xiaoyong Chen, Kiyoshi Honda, and Apisit Eiumnoh

An innovative automatic road extraction technique that combines information from aerial photography and laser data applied to extract city roads through homoeomorphous mapping.

1441 Evaluation of Remote Sensing Techniques for Mapping Transborder Trails
John V. Kaiser, Jr., Douglas A. Stow, and Lina Cao

The utility of various image processing methods applied to very high spatial resolution multispectral digital imagery are evaluated for mapping smuggler trail networks crossing the U.S.-Mexico border.

1449 Quantitatively Assessing Roads Extracted from High-Resolution Imagery
Renaud Péteri, Isabelle Couloigner, and Thierry Ranchin

A description of a new and rigorous method for the quantitative assessment of road extraction algorithms from high resolution images.

1457 Increasing Efficiency of Road Extraction by Self-Diagnosis
Stefan Hinz and Christian Wiedemann

General ideas on methodology and representation of internal evaluation (self-diagnosis) within automatic object extraction systems are presented and the benefits of selfdiagnosis on the basis of two different road extraction systems is exemplified.

2004 PE&RS Indices
1467 Subject Index (201Kb Adobe PDF)
1488 Author Index (89Kb Adobe PDF)

Announcements
1326 Pecora 16 — Global Priorities in Land Remote Sensing
Cover 2 ASPRS 2005 Annual Conference — Geospatial Goes Global: From Your Neighborhood to the Whole Planet
1448 Call for Papers — The 20th Biennial Workshop on Aerial Photography, Videography, and High Resolution Digital Imagery for Resource Assessment

Departments
1340 New Member List
1341 Region of the Month
1347 Who’s Who in ASPRS
1348 Sustaining Members
1350 New Sustaining Member
1350 Advertiser Index
1372 Instructions to Authors
1432 Forthcoming Articles
1496 Calendar
1497 Classifieds
1499 Bookstore
1504 Professional Directory
1508 Membership Application

Top

Home