A typical domestic map digital photogrammetry system refers to ().

The typical map digital photogrammetry system in China refers to Virtuozo.

The functions of photogrammetry in digital and smart cities are as follows:

The efficiency of urban survey is greatly improved, and the accuracy of survey data is relatively high, and the obtained data information is relatively complete, which can provide necessary data for the construction of smart cities.

The development history of digital close-range photogrammetry can be summarized into five periods with different characteristics: the early stage of basic stage; Enter the gradual development period of digital stage; Enter the all-round development period of digital stage, the in-depth development period of steady research and increasing popularization and application, and the recent maturity period.

1964 to 1984 are the prophase of digital close-range photogrammetry. The research achievements in this period mainly laid the theoretical foundation of digital close-range photogrammetry, including image processing algorithm, error theory, research and application of CCD device, template matching algorithm and simultaneous processing technology of multiple photos. Therefore, some people call this period the infant state of digital close-range photogrammetry.

From 1984 to 1988, the digital stage has gradually developed, and many digital close-range photogrammetry systems have gradually developed. Although few of them are practical, they lay the foundation for the follow-up research and development in system design, development and calibration. At the annual meeting of the International Conference on Photogrammetry and Remote Sensing (ISPRS) held in Ottawa, Canada from June 65438 to June 0986, digital close-range photogrammetry became one of the themes of the Fifth Committee.

1The annual meeting of the International Society of Photogrammetry and Remote Sensing held in Interlaken, Switzerland in June, 1987 was the first international conference with the theme of digital photogrammetry alone. At the 16 ISPRS conference held in Kyoto, Japan in 1988, the Fifth Committee officially changed its name to "Close-range Photogrammetry and Machine Vision", and a lot of articles were about digital close-range photogrammetry.