What does the image information of photogrammetry include?

Image acquisition, image processing theory and technology, image information extraction, etc.

1. Image acquisition: refers to the acquisition of image data of the measured object by means of aerial photography, satellite remote sensing and other technical means. These data can be two-dimensional plane images or three-dimensional point clouds.

2. Image processing theory and technology: including preprocessing, correction, registration and other operations to improve its quality and accuracy. Common processing methods include camera orientation calculation, digital image enhancement and filtering.

3. Image information extraction: By analyzing and explaining the features of ground objects contained in the impact, the information that needs to be studied or applied is extracted. For example, land cover classification, target detection and recognition can be carried out in the field of remote sensing.