期刊名称：Archiwum Fotogrametrii, Kartografii i Teledetekcji
印刷版ISSN：2083-2214
出版年度：2008
卷号：18
语种：English
出版社：Main Board of Association of Polish Surveyors
摘要：Wayfinding is a vital part of our everyday life. Since it is our daily routine,hardly anybody realizes what a demanding task it is and that it requires certain spatial and cognitive abilities. To develop supporting tools for wayfinding,it is essential to know the mechanisms that control these processes. With a progress of technology,the size and weight of electronic devices have diminished significantly. The dropping of prices and wide-ranging availability of such devices increased interest in such systems. Factors like size and availability were the reason for calling them “ubiquitous systems”. The market is full of perfectly working navigation systems for car drivers. They are widespread,have high user-acceptance level and their market is fast-growing. Can one modify such systems in a way that pedestrians can use it? The problem is more complex than one might imagine at first sight. Field tests show that systems for car drivers do not meet the requirements of pedestrian users. Car and pedestrian navigation differ in: degree of freedom,velocity of movement and spatial resolution. In this paper we focus on data acquisition. The required data cannot be based on the same datasets used for car navigation systems. Automatization of the process of data acquisition is also required. The paper introduces a theoretical basis of pedestrian navigation system. The emphasis is given to the mechanisms responsible for perceiving the surrounding environment. A concept of cognitive maps and image schemata,which are working in our minds,is presented. The paper explains what are our needs and information categories while we are performing a wayfinding task. The wayfinding model developed assumes construction of decision scenes which will replace decision points well-known from car driver navigation systems. The result of this research is an algorithm allowing automatic data processing for pedestrian navigation system. Through successive phases of preprocessing,binarization,skeletonization,and application of Voronoi diagrams,the navigationable graph was obtained. It includes decision scenes and is ready for implementation to the new system.
其他摘要：Wyszukiwanie drogi (wayfinding) w nieznanym Ğrodowisku jest czĊĞcią naszego codziennego Īycia. Wymaga ono od nas konkretnych przestrzennych i kognitywnych umiejĊtnoĞci. W celu stworzenia systemu nawigacji dla pieszych istotne jest poznanie mechanizmów,któ
