Abstract
In the recent past, there have been large emphasis on extraction of geospatial information from satellite imagery. The Geospatial information are being processed through geospatial technologies which are playing important roles in developing of smart cities, particularly in developing countries of the world like India. The study is based on the latest geospatial satellite imagery available for the multi-date, multi-stage, multi-sensor, and multi-resolution. In addition to this, the latest geospatial technologies have been used for digital image processing of remote sensing satellite imagery and the latest geographic information systems as 3-D GeoVisualisation, geospatial digital mapping and geospatial analysis for developing of smart cities in India. The Geospatial information obtained from RS and GPS systems have complex structure involving space, time and presentation. Such information helps in 3-Dimensional digital modelling for smart cities which involves of spatial and non-spatial information integration for geographic visualisation of smart cites in context to the real world. In other words, the geospatial database provides platform for the information visualisation which is also known as geovisualisation. So, as a result there have been an increasing research interest which are being directed to geospatial analysis, digital mapping, geovisualisation, monitoring and developing of smart cities using geospatial technologies. However, the present research has made an attempt for development of cities in real world scenario particulary to help local, regional and state level planners and policy makers to better understand and address issues attributed to cities using the geospatial information from satellite imagery for geovisualisation of Smart Cities in emerging and developing country, India.
Highlights
1.1 Geospatial InformationThe geographic information from remote sensing in form of spatial and non-spatial data have largely been used in the present information technology age by the society
The integration of spatial and non-spatial data and its visualisation is known as geographic visualisation or geovisualisation
The geospatial technology is playing an essential role in geovisualisation of cities for development of smart cities in country, India
Summary
The geographic information from remote sensing in form of spatial and non-spatial data have largely been used in the present information technology age by the society. Satellites have geometric resolution less than one meter These geometric resolution levels are not sufficient to generate finer models, extraction and representation of major urban features are still possible with uses of these remote sensing imagery (Thomas and Reintarz, 2008). Multi-spectral satellite imagery provides valuable information for urban mapping and 3D modelling of urban landscape. The use of such exhaustive surface data for urban landscape description is attracting wide range of interest in the geographic information, GI Science community, due to progresses in obtaining accurate surface geometry from remote sensing data. At present, the high-resolution satellite sensors available at the less than 0.5 m resolution, it becomes more practical and economical to utilize stereo satellite imagery to generate less than 3.0 m digital surface model’s (DSM’s) without any requirements for aerial mapping permits, licenses or mapping in restrictive air space at the regional and global levels
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