Information Systems

Download Data Acquisition and Analysis for Multimedia GIS by L. Mussio, G. Forlani, F. Crosilla PDF

By L. Mussio, G. Forlani, F. Crosilla

The ebook comprises 31 papers on diversified fields of program and the issues of modelling and organizing facts in buildings, the processing concepts of GIS facts for queries to the process and the so-called Dynamic GIS were stated intimately. a last paper on special effects ideas is integrated. Its contents should be preferably gathered in 5 chapters, within the first one a few studies on info acquisition with low-budget DGPS for street survey and assessment on automobile Navigation platforms (VNS) are proven. the second one on "GIS facts acquisition and assessment” collects a type of papers treating strong statistical suggestions utilized to pre-processing, research and trying out for other kinds of GIS info. in the subject on "image acquisition and preprocessing” specifically a few studies on try out and calibration of alternative scanners for GIS facts acquisition are mentioned in addition to a few unique techniques to the automated DTM iteration for cartographic and shut variety functions. eventually, a few purposes to the environmental tracking and to using other forms of geodetic information in multipurpose neighborhood GIS, including a few examples of the applicability of multimedia know-how to structure and civil engineering is shown.

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Furthermore the world is static: the position, shape and size ofthe objects do not change. The theory outlined in this paper is implemented in a project called EXPLORER; a first prototype of EXPLORER has been implemented and is currently under assessment. The paper is organized as follows. Section 2 introduces the theoretical approach and the basic features of the representation model. Section 3 focuses on our version of the "diktiometric representation" and presents a new approach to the problem of maintaining the consistency of the model.

This metod supplies the parameters of each line segment and the associated covariance matrix. Once this process is concluded a set of comers, related to the robot reference frame, are obtained by geometric intersection of corresponding pairs of line segments. Comers are the basic elements of a robot visual scene. Since vertices can be end-points of edges representing part of an object boundary, they do not necessarly corrispond to true comers in the real world. It is essential to distinguish true comers from "dummy" ones.

U. J. ), Springer, Berlin Heidelberg 1994, 15-14. 7. M. M. Moore: Applications of Graph Theory Algorithms, Elsevier North Holland, New York 1979. MAINTAINING CONSISTENT GEOGRAPHIC DESCRIPTION OF THE ENVIRONMENT OF AN AUTONOMOUS MOBILE ROBOT G. Borghi Polytechnic of Milan, Milan, Italy and CNR-LADSEB, Padua, ltaly D. Brugali Polytechnic of Milan, Milan, ltaly and Polytechnic of Turin, Turin, ltaly ABSTRACT In this paper we present a method for a mobile robot to explore autonomously an unknown environment.

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