What is the photogrammetrist?
Photogrammetrist uses two -dimensional photographs to reconstruct an environment or object in three dimensions or to determine the actual sizes and distances of objects in the real world from photographs. In their work, these experts use geometry and optics and often help them with computer programs that help them solve complicated mathematical problems. It is possible to find photogrammetristians working in various fields. Some of the more common jobs for photogrammetristy are found in police investigation, insurance, mapping and engineering.
In its simplest form of photogrammetry, it uses only one photo to collect information about the real world. If the range of photography is known to the actual object, the image can be measured and the actual size of the object is easily calculated. Although it can be so easy, the vast majority of photogrammetry is done using a number of photos and complicated equations.
in photogramtry when a number of images are taken from the same objectHere, the position and orientation of the camera will change from one picture to another. In order to obtain information about a photographed object, the photogrammetrist must identify a point that appears in two or more pictures and compares the way the point moves in relation to the rest of the objects in the photo. In many cases, the information is collected from multiple points on a number of photos at the same time. Although the calculations needed to collect information about many points are difficult, the use of computers allows you to generate this information quickly and reliably.
One of the more common things the photogrammetrist does is to create topographic maps. To make it possible, the photogrammetrist uses a number of aircraft photographs taken low flying plane. Points are identified in the pictures of an compared when the camera moves around the landscape to reconstruct the depth from the two -dimensional image. Once the depths of different points are set, a map of the height of different parts of the terrain can be created. SameThese techniques can be used to determine the topography of the city panorama, archaeological digging or geometric formation.
Photos of smaller entities can also be analyzed by a photogrammetrist. Insurance and police investigations often employ these experts to determine how much the subject has been damaged. By reconstructing these objects, the photogrammetrist can often determine how far the object or its piece has been moved. This information can be used to determine the force required to damage the object, which is particularly useful in determining such things as the speed that the car moved at the time of the accident.