Photogrammetry, in general, is the latest technology available, which helps to shape, orientation, size and position of objects from various images taken at different angles.
Photogrammetry is used for different purposes, such as topographic mapping, architecture, engineering, manufacturing, quality control, forensic investigation and geology. This technique is used to combine live-action with computer-generated imagery in the film post-production.
In forensic investigations, expert use best photogrammetry software with the ability to produce an accurate bio-metric measurement of a suspect’s dimensions (e.g. height), and crime scene measurements from surveillance video and photographs.
Photogrammetry process includes two key-orthorectification process and Remote Sensing.
Orthorectification is the technology used to change the central projection of the photograph in the orthogonal view from the ground, thus eliminating the effect of distorting the slope and relief terrain.
Remote Sensing is used to acquiring geospatial information on the Earth's surface using reflective and refractive properties of electromagnetic radiation (EMR). On the one hand, both typical of photogrammetry section offers information technology for substantiating the map.
Today, the graphics program allows the operator to digitize and store feature vectors and points to a digital file.
Photogrammetry helps to compile accurate information to map the topography and thus provide a reliable resource for the study of geography.
With the introduction of the new-age systems and rapid technological advances processing, we can expect the simplification of photogrammetric services.