Difference between digital photogrammetry and photogrammetry

Digital photography is to use digital photography equipment on the basis of traditional photography and digitize all the obtained photographic information. Digital photogrammetry and photogrammetry belong to photogrammetry, which is an important branch of photogrammetry.

Since the birth of photography, human beings have used photography in all kinds of measurement work. Traditional photogrammetry takes film as the record carrier, and it needs complicated work such as shooting, developing, fixing and printing to get the measured image data, but these data need to rely on people's eyes to identify the shooting content, which is very inconvenient to use or transmit.

With the rapid development of digital technology, human beings have all realized digitalization in photography technology. The application of this digital photography technology has completely changed the traditional photogrammetry.

At present, satellites, airplanes and unmanned aerial vehicles are equipped with digital photogrammetry devices, which can quickly obtain large-area and high-precision image measurement data and can be easily transmitted to ground equipment.

Digital photogrammetry plays an increasingly important role in modern wars, disaster relief and human daily life.