What traditional photogrammetry cannot directly produce

Traditional photogrammetry technology is mainly through the shooting of two-dimensional photos to obtain terrain information, and then through the measurement of feature points on the photos to calculate the three-dimensional coordinates, and then generate three-dimensional models.

However, due to the traditional photogrammetry technology is affected by the camera viewing angle, lighting conditions, image resolution and other factors, the generated model has a lack of precision, texture is not clear and other problems, need to optimize and improve with the help of other technologies.