DOM Quality Inspection

May 06, 2023

After the DOM is made, it is necessary to check the quality of the DOM. 100% inspection of the image results is carried out from the aspects of the mathematical basis of the DOM results, framing and numbering, resolution, data coverage, accuracy, image quality, etc., and a corresponding inspection record is formed.

Note that when doing DOM quality checks:

① The mathematical foundation of DOM should be correct, and the images within the range should have no loopholes;

② Both the framing DOM and the whole area DOM should have clear images, moderate contrast, uniform color and tone, continuous, seamless and visual consistency;

③ For the inlaid DOM, there should be no obvious grayscale changes and obvious inlaid traces near the inlaid line;

④ The ground features and landforms on the digital orthophoto map should be real, without distortion, noise, cloud shadow and other defects;

⑤ The overall appearance of the digital orthophoto map should be neat and beautiful；

⑥ The border difference on the image data does not produce an overall and obvious visual difference