![]() Therefore, it was mostly used by businesses and governments. Cameras were used as early as the 1920s, and they were first used in aerial photography in 1938.įor most of its history, aerial surveying required a large investment. The history of aerial surveying refers to the times when images were primarily viewed through the use of cameras. In general, aerial surveying collects data regarding topography, land use, and engineering structures. The types of data collected by aerial surveys can vary based on the needs of the person who commissions the survey. LiDAR- LiDAR is a form of mapping that uses light pulses in order to collect 3D data.They have many advantages, such as being able to see through clouds and other obstructions that would otherwise hide information from the eye. Multispectral– This type of data enables the analyst to see all wavelengths of light at once. ![]() Remote sensing- This involves using sensors to collect data through radio waves, infrared, or ultraviolet wavelengths of light.It involves taking pictures with a camera and analyzing that data later. Aerial photography- This is the most popular method used.There are two main methods for obtaining this information: In an aerial survey, the goal is to obtain a complete and accurate representation of the world below. Photogrammetric technology and methodologies give measurements on aerial photographs. Today, aerial survey is sometimes used interchangeably with aero photogrammetry, a type of photogrammetry in which the camera is mounted in the air.
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