Modeling Automated Creation Of Topographic Maps
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Modeling Automated Creation Of Topographic Maps
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Author : Dalibor Moravec
language : en
Publisher:
Release Date : 1986
Modeling Automated Creation Of Topographic Maps written by Dalibor Moravec and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
Semantic Modeling For The Acquisition Of Topographic Information From Images And Maps
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Author : Wolfgang Förstner
language : en
Publisher: Springer Science & Business Media
Release Date : 1997-05-01
Semantic Modeling For The Acquisition Of Topographic Information From Images And Maps written by Wolfgang Förstner and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-05-01 with Computers categories.
Acquiring spatial data for geoinformation systems is still mainly done by human operators who analyze images using classical photogrammetric equipment or digitize maps, possibly assisted by some low level image processing. Automation of these tasks is difficult due to the complexity of the object, the topography, and the deficiency of current pattern recognition and image analysis tools for achieving a reliable transition from the data to the high level description of topographic objects. It appears that progress in automation only can be achieved by incorporating domain-specific semantic models into the analysis procedures. This volume collects papers which were presented at the Workshop "SMATI '97". The workshop focused on "Semantic Modeling for the Acquisition of Topographic Information from Images and Maps." This volume offers a comprehensive selection of high-quality and in-depth contributions by experts of the field coming from leading research institutes, treating both theoretical and implementation issues and integrating aspects of photogrammetry, cartography, computer vision, and image understanding.
Digital Terrain Modeling
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Author : Zhilin Li
language : en
Publisher: CRC Press
Release Date : 2004-11-29
Digital Terrain Modeling written by Zhilin Li and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-11-29 with Technology & Engineering categories.
Written by experts, Digital Terrain Modeling: Principles and Methodology provides comprehensive coverage of recent developments in the field. The topics include terrain analysis, sampling strategy, acquisition methodology, surface modeling principles, triangulation algorithms, interpolation techniques, on-line and off-line quality control in data a
Faithful Representations And Topographic Maps
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Author : Marc M. Van Hulle
language : en
Publisher: Wiley-Interscience
Release Date : 2000-02
Faithful Representations And Topographic Maps written by Marc M. Van Hulle and has been published by Wiley-Interscience this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-02 with Computers categories.
A new perspective on topographic map formation and the advantages of information-based learning The study of topographic map formation provides us with important tools for both biological modeling and statistical data modeling. Faithful Representations and Topographic Maps offers a unified, systematic survey of this rapidly evolving field, focusing on current knowledge and available techniques for topographic map formation. The author presents a cutting-edge, information-based learning strategy for developing equiprobabilistic topographic maps--that is, maps in which all neurons have an equal probability to be active--clearly demonstrating how this approach yields faithful representations and how it can be successfully applied in such areas as density estimation, regression, clustering, and feature extraction. The book begins with the standard approach of distortion-based learning, discussing the commonly used Self-Organizing Map (SOM) algorithm and other algorithms, and pointing out their inadequacy for developing equiprobabilistic maps. It then examines the advantages of information-based learning techniques, and finally introduces a new algorithm for equiprobabilistic topographic map formation using neurons with kernel-based response characteristics. The complete learning algorithms and simulation details are given throughout, along with comparative performance analysis tables and extensive references. Faithful Representations and Topographic Maps is an excellent, eye-opening guide for neural network researchers, industrial scientists involved in data mining, and anyone interested in self-organization and topographic maps.
Terrain Modelling In Surveying And Civil Engineering
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Author : G. Petrie
language : en
Publisher: McGraw-Hill Companies
Release Date : 1991
Terrain Modelling In Surveying And Civil Engineering written by G. Petrie and has been published by McGraw-Hill Companies this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Technology & Engineering categories.
Topographic Mapping
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Author : John N. Hatzopoulos
language : en
Publisher: Universal-Publishers
Release Date : 2008
Topographic Mapping written by John N. Hatzopoulos and has been published by Universal-Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Science categories.
This book is addressed to students and professionals and it is aimed to cover as much as possible the wider region of topographic mapping as it has been evolved into a modern field called geospatial information science and technology. More emphasis is given to the use of scientific methods and tools that are materialised in algorithms and software and produce practical results. For this reason beyond the written material there are also many educational and professional software programs written by the author to comprehend the individual methodologies which are developed. Target of this book is to provide the people who work in fields of applications of topographic mapping (environment, geology, geography, cartography, engineering, geotechnical, agriculture, forestry, etc.) a source of knowledge for the wider region so that to help them in facing relevant problems as well as in preparing contracts and specifications for such type of work assigned to professionals and evaluating such contracting results. It is also aimed to be a reference of theory and practice for the professionals in Topographic Mapping. This book applies a didactics method where with a relatively small effort someone can digest a quite large volume of simple or complicated material of knowledge at a desirable scientific depth within a relative short time interval. The objective that educated people must be "smarter than the machine" and not to treat the machine as a "black box" being "button pushers" has been achieved, through the author's experience in USA and Greece, with relative success by adopting this didactics technique. There are 11 chapters and two Appendices including: Reference systems and Projections, Topographic instruments and Geometry of coordinates, Conventional construction of a topographic map, Design and reproduction of a thematic map, Digital Topographic mapping - GIS, Digital Terrain Models (DTM / DEM), GPS, methods of Photogrammetry, Remote Sensing, new technologies LIDAR, IFSAR, the method of Least Squares adjustment, Description of educational software accompanying the text.
Generalisation Of Geographic Information
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Author : William A. Mackaness
language : en
Publisher: Elsevier
Release Date : 2011-07-28
Generalisation Of Geographic Information written by William A. Mackaness and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-07-28 with Science categories.
Theoretical and Applied Solutions in Multi Scale Mapping Users have come to expect instant access to up-to-date geographical information, with global coverage--presented at widely varying levels of detail, as digital and paper products; customisable data that can readily combined with other geographic information. These requirements present an immense challenge to those supporting the delivery of such services (National Mapping Agencies (NMA), Government Departments, and private business. Generalisation of Geographic Information: Cartographic Modelling and Applications provides detailed review of state of the art technologies associated with these challenges, including the most recent developments in cartometric analysis techniques able to support high levels of automation among multi scale derivation techniques. The book illustrates the application of these ideas within existing and emerging technologies. In addition to providing a comprehensive theoretical underpinning, the book demonstrates how theoretical developments have translated into commercial systems deployed within NMAs. The book explores relevance of open systems in support of collaborative research and open source web based map services. State of the art review on multi scale representation techniques Detailed consideration of database requirements and object modeling in support of emerging applications (3D, mobile) and innovative delivery (map generalisation services) Illustration through existing map production environment implementations Consolidated bibliography (680 entries), 200 illustrations, author and subject index
Automated Modelling Of Digital Elevation Models For Predictive Ecosystem Mapping In Gis
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Author : Nancy Doreen Alexander
language : en
Publisher:
Release Date : 2001
Automated Modelling Of Digital Elevation Models For Predictive Ecosystem Mapping In Gis written by Nancy Doreen Alexander and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
This thesis is an exploratory analysis of automated mapping protocols that can be used to support Terrestrial Ecosystem Mapping and Predictive Ecosystem Mapping in British Columbia. This thesis employs neighbourhood analysis of elevation and its derivatives to discriminate the bioterrain elements defined by Terrestrial Ecosystem Mapping standards. In achieving these standards, discrimination beyond the basic topographic forms presented in current research is explored. The method developed strives to be - easily implemented by mapping projects employing standard GIS software ; flexible so that the extracted topographic forms can be tailored to varying project objectives ; compatible with the hierarchical procedure employed in Terrestrial Ecosystem Mapping ; efficient and accurate in that the process is advantageous over manual mapping methods. The effect of data quality is addressed through an assessment of DEM data interpolation techniques and classification accuracy. Random and systematic artifacts of the DEM that influence the quality of the derivatives are explored. The issue of scale-dependent shape is addressed by the constraints of objective-based mapping in which a map scale is specified and the most basic shape elements are aggregated into contiguous classes by a roving neighbourhood window. The results indicate that basic topographic elements are mapable from relief as well as first and second order elevation derivatives. These results give preliminary accuracy of 80% based on the three classes tested. The procedure requires decisions at every step, but it is felt that this complements the traditional mapping process in that it is hierarchical, and requires a synthesis of extensive knowledge of vegetation and landscape across many scales. Key Words: elevation, digital elevation model, topography, slope, aspect, curvature, Terrestrial Ecosystem Mapping, Predictive Ecosystem Mapping, scale, random, systematic error.
Mapping And Spatial Modelling For Navigation
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Author : Louis F. Pau
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Mapping And Spatial Modelling For Navigation written by Louis F. Pau and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Computers categories.
The successful implementation of applications in spatial reasoning requires paying attention to the representation of spatial data. In particular, an integrated and uniform treatment of different spatial features is necessary in order to enable the reasoning to proceed quickly. Currently, the most prevalent features are points, rectangles, lines, regions, surfaces, and volumes. As an example of a reasoning task consider a query of the form "find all cities with population in excess of 5,000 in wheat growing regions within 10 miles of the Mississippi River. " Note that this query is quite complex. It requires- processing a line map (for the river), creating a corridor or buffer (to find the area within 10 miles of the river), a region map (for the wheat), and a point map (for the cities). Spatial reasoning is eased by spatially sorting the data (i. e. , a spatial index). In this paper we show how hierarchical data structures can be used to facilitate this process. They are based on the principle of recursive decomposition (similar to divide and conquer methods). In essence, they are used primarily as devices to sort data of more than one dimension and different spatial types. The term quadtree is often used to describe this class of data structures. In this paper, we focus on recent developments in the use of quadtree methods. We concentrate primarily on region data. For a more extensive treatment of this subject, see [SameS4a, SameSSa, SameSSb, SameSSc, SameSga, SameSgbj.
Automated Interpretation Of Topographic Maps
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Author :
language : en
Publisher:
Release Date : 1992
Automated Interpretation Of Topographic Maps written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
Some new results which impact favorably upon the issue of automated topographic map interpretation are presented. Actually, the 'new' results consist of heretofore undiscovered applications of two concepts known to mathematicians and computer scientists for many years: binary search, and the normal vector. Binary search is extended by the technique from not only one to two dimensions, but arguably to three dimensions, since topographical maps are two-dimensional representations of three dimensional surfaces. Such maps are essentially sorted hierarchies of nested contours, which form a multiply- connected subdivision of the plane. The perimeter of a subdivision element is defined by a set of contours of extremal elevation and the edges of the map; a naming convention attaches a label to each element of the planar subdivision. Whenever one is afforded the luxury of dealing with a sorted data structure, one may invoke the power of binary search to achieve 0 (log n) time complexity during processing of a topographical query, where n is the number of contours which comprise a specific element of the planar subdivision. A topographical query is a request by a user to interpret the position of an arbitrary map coordinate, called query point, topographic map background. Artificial Intelligence, Applied Mathematics, Data Fusion, Topographic Line Map (TLM).
