What is Photogrammetry services?

We all knows that Photogrammetry is a remote sensing technology developed in which geometric properties about objects are determined from photographic images.
Photogrammetry is used in different fields, such as topographic mapping, architecture, engineering, manufacturing, quality control, weather forecasting, police investigation, and geology. Also it is very helpful to archaeologists to produce plans of large or complex sites and by meteorologists as a way to determine the actual wind speed of a tornado where objective weather data cannot be obtained. It is also used to combine live action with computer generated imagery in movie post-production.
Digital photogrammetry in GIS services includes Aerial triangulation,Aerial photogrammetry service, DTM DEM generation, orthophoto production and rectification, color balancing, Ortho mosaicing and tile generation, pan sharpening, contour generation, digital elevation model (DEM) extraction, 3D terain visualization, orthophotography services,geo-rectification services, photogrammetry service,Orthophoto rectification service,orthophoto generation,remote sensing services and LiDAR data processing services.