In this technique, we take photographs from atleast two different locations. Fundamental Principle: Triangulation is the fundamental principle used by photogrammetry. Photogrammetry is a technique used in surveying to measure the three dimensional coordinates with the help of photography. The term “photogrammetry” is composed of the words “photo” and “meter” meaning measurements from photographs. The output of photogrammetry is typically a map, a drawing or a 3D model of some real-world object or land mass. So please use this guideline as a starting point and gradually develop strategies that work the best for you.īefore we get into detailed descriptions of the methods, let's first familiarize with some key terms to make sure we are on the same page.įAA: An unmanned aircraft system ( UAS ), sometimes called a drone, is an aircraft without a human pilot onboard – instead, the UAS is controlled from an operator on the ground. What it means to is just showing you the basic workflow of a drone-based photogrammetric survey project. Since the current version of the guideline is mainly based on our limited experience of using drones, it is far from being comprehensive or authoritative. The just passed year of 2016 has even be called the first year in the Drone Age. To assist interested Wash U researchers embracing the Drone Age, we have prepared this guideline of how to use drones to conduct photogrammetric surveys. In recent years, Drones (also known as UAS, and UAV) have been widely used in many disciplines, such as geology, geography, ecology, archaeology, and many others.
0 kommentar(er)
