What are the B-class photogrammetry systems?

There are aerial cameras, photogrammetry systems and remote sensing image processing systems.

1. Aerial camera: including airborne laser scanner, airborne gravimeter and airborne SAR.

2. Photogrammetry system: A photogrammetry system that uses digital or intelligent forms to obtain data, such as images and point clouds, for data processing and result output.

3. Remote sensing image processing system: an image processing system that can digitize, restore, geometrically correct, enhance, statistically analyze, present, classify and identify remote sensing image information.