Difference between digital photogrammetry and traditional photogrammetry

First, the application methods are different.

1. Digital photogrammetry is a measurement method based on the basic principle of photogrammetry, which uses computer technology to extract the geometric and physical information of the subject in digital form.

2. Traditional photogrammetry is a technique to measure the shape, size and spatial position of an object by using a combination of camera and film.

Second, the image categories are different.

1, digital photogrammetry adopts digital images.

2. Traditional photogrammetry uses traditional film images.

Extended data

With the development of computer technology and its application, digital image processing, pattern recognition, artificial intelligence, expert system and computer vision, the connotation of digital photogrammetry has gone far beyond the scope of traditional photogrammetry and is recognized as the third development stage of photogrammetry.

The biggest difference between digital photogrammetry and analog and analytical photogrammetry is that the original information it processes can be not only photos, but also digital images (such as point images) or digital images; It finally replaced the stereoscopic observation of human eyes with computer vision.

The instrument it uses will eventually be a general-purpose computer and its corresponding external equipment, especially in the contemporary era, the development of workstations provides a broad prospect for the development of digital photogrammetry; Its products are in digital form, and traditional products are only analog outputs of digital products.

Baidu Encyclopedia-Digital Photogrammetry

Baidu encyclopedia-photogrammetry