Why You Should Look For The Aerial Surveying?

Aerial surveying is a technique of collecting aerial or earth observation by using planes, UAVs, helicopters, balloons or any other aerial means. Typical kinds of imagery collected are aerial photography, radar, remote sensing, geotechnical and topographical data. It can also be used for traffic congestion management and strategic urban planning. In addition to the above mentioned kinds of data, it can also be useful in disaster management and emergency response.

Surveys on the other hand are mainly done for mapping purposes. This kind of analysis determines land use planning, environment assessment and zoning regulations and helps project managers determine where new development should occur. The techniques used in aerial surveying are not limited to land use planning; many other applications have also been applied. One application includes surveying for fire hydrant safety. During extreme weather conditions such as hurricanes and tornados, inspection surveys help locate the safest routes for rescue missions and roadways. In general, the application of these techniques has contributed to the accuracy and precision with which we can observe the world around us.

Aerial survey systems differ from traditional survey techniques in their use of aerial photography and surveyors as well as the technologies they use. Most countries utilize the Global Positioning System or GPS to locate survey points and perform aerial surveying. In the United States, the National Aerial Survey is commissioned to coordinate and manage the nation's aerial surveying system. The most common tools used by aerial surveyors are the stereo cameras, digital optical technology and laser technology. All these instruments take photographic images of land surfaces to capture detailed land sections.

Some countries utilize ground-based optical imaging, whereas others employ photographic photogrammetry. Photogrammetry is the process of taking photographs of large areas with a very high repetition rate using a handheld computer camera. Large scale photogrammetric surveys have the highest repeat rate among all methods, providing the best analytical information. Optical airborne survey systems generally take a lower resolution image than photogrammetric ones, but both are extremely effective in their applications. Both types of aerial surveying methods are useful in determining the boundaries of occupied land, building positioning and topography.

Digital Aerial Imagery (DAI) is another type of aerial surveying systems that produce highly detailed imagery from an aircraft. With the advent of software that produces DDI imagery, the aerial photography is produced by a processor that works alongside a copilot. The images are then processed by the remote control and sent back to earth through the internet. DAI imagery can provide a cost-effective alternative to ground-based mapping.

There are many advantages of aerial drone surveying services. When conducting environmental surveys for landfills or locating earthquake prone regions, photogrammetry can often be applied instead of aerial surveys. This technique produces images from the lowest level of the earth that are highly refined. Many areas that are not easily accessible by land or ground surveyors can be better visualized by means of photogrammetry. The images produced are highly accurate, easy to read, and use a laser-based identification method, so they are suitable for producing detailed topographical maps without requiring a large amount of human input.

With the advent of new techniques in computer technology, more precise results can now be obtained from aerial surveying. New software enables surveyors to create high resolution topographic maps from data captured by drones or remote-controlled aircraft. Autonomous aerial vehicles (aeroviruses) or UAVs (unmanned aerial vehicles) can scan the landscape to determine elevations and areas of interest. This is done with a high resolution digital image map which is then transmitted back to earth for interpretation by surveyors.

The three-dimensional images produced by photogrammetry offer better accuracy than traditional topographical survey methods and the lack of physical access allows surveyors to get closer to the subject matter they are studying. It is important, though, that photogrammetric techniques are applied properly so that the final maps provide accurate measurements of features and distances. If the base map is incorrect or if the laser mapping process destroys too much of the terrain, the final map will still be incorrect. This is why it is vital that aerial surveying professionals use a good software package like Top Maps or Scanner Pro to adjust the parameters and compensate for mistakes and inconsistencies.