FAQs Glossary

Accuracy of Satellite Imagery

Accuracy is the distance between the actual geographic location of an object compared to the position of the object in the image.

It is dependent on several factors:

  • Satellite positioning technology,

  • Terrain relief,

  • Sensor viewing angle.

After a satellite image is taken it's accuracy can be improved by a process called orthorectification. Once imagery is orthorectified, it can be used for feature extraction and direct measurement.



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