Tools for Map Analysis

Contents Foreword 1 Image Enhancement 2 Thematic Information Extraction Image Classification 3 Digital Change Detection Bibliography IndexBiophysical material and man-made features on the surface of Earth are inventories using remote sensing and in situ techniquesThe information is often stored cartographically or in a geographic information system GIS Some of the data are static that is they do not change over time Conversely some biophysical materials and man-made features are dynamic changing rapidlyIt is important that such changes be inventoried accurately so that the physical and human process at work can be more fully understood Estes 1992; Jensen and Narumalani 1992 Therefore it is not surprising that significant effort has gone into the development of change detection methods using remotely sensed data This chapter reviews how change information is extracted form digital remotely sensed data It summarizes the remote sensor system change detection takes place Many of the most widely used change detection algorithms are identified and demonstrated where possible using rural and urban examples The general steps required to perform digital change detection using remotely sensed dataOne of the first requirements is to identify land-over classes of interest to be monitored and eventually placed in the change detection database This requires the selection of an appropriate classification schemeThis book will be of immense help to all those contemplating to acquire expert knowledge of tools for map analysis Jacket 236 pp.…