GIS Techniques and Technologies
Present day GIS advances utilize computerized data, for which different digitized information creation strategies are utilized. The most well-known strategy for information creation is digitization, where a printed copy guide or overview plan is moved into an advanced medium using a PC helped outline (CAD) program, and geo-referencing capacities. With the wide accessibility of ortho-redressed symbolism (both from satellite and aeronautical sources), heads-up digitizing is turning into the principle road through which geographic information is removed. Heads-up digitizing includes the following of geographic information specifically on top of the elevated symbolism rather than by the conventional technique for following the geographic shape on a different digitizing tablet (heads-down digitizing).
- GIS uncertainties
- Data capture
- Data representation
- Raster-to-vector translation
- Projections coordinate systems, and registration