Stereometry can collect

Stereo mapping can collect all visible ground features on the three-dimensional collected images of the production process. Digital stereo image mapping is a developing method. The instrument used is called digital photogrammetry system, which consists of photo digitizer, computer, output device and photogrammetry software system. Stereo mapping of dual images is also a process of internal orientation, relative orientation and absolute orientation. Using digital image and digital correlation technology instead of human eye observation, we can automatically find the same name image points and measure the coordinates.