Orthophotography is a type of aerial photography that has been used for many years to produce detailed images for a variety of uses. Orthophotography offers many advantages over traditional aerial photography, including the ability to capture more detail and the ability to create three-dimensional (3D) images. In this chapter, we will explore what orthophotography is, examples of its use, and how it can be used in various applications.
What is Orthophotography?
Orthophotography is a type of aerial photography that uses specialized equipment to capture images from an elevated position. The images are then processed and corrected so that they are geometrically correct and free from distortion. This process ensures that the resulting image accurately depicts the terrain as it appears in reality. The resulting imagery is known as an orthoimage or orthophoto.
Examples of Orthophotography
Orthophotography has many applications in various fields such as mapping, surveying, engineering, forestry, agriculture, and urban planning. For example, orthophotos can be used to create detailed maps or plans of a region or area. They can also be used to monitor changes over time in specific areas. For example, they can be used to track land use changes or detect damage caused by natural disasters such as floods or earthquakes.
How Orthophotography Be Used
In addition to being used for mapping and surveying purposes, orthophotos can also be used for other applications such as 3D modelling and virtual reality simulations. They can also be used for scientific research such as studying plant growth patterns or detecting changes in land cover over time. Orthoimages have become increasingly popular due to their accuracy and detail when compared to traditional aerial photographs and are often used by government agencies for urban planning purposes.