Areas of Study


Software is being developed to improve geolocating Corona spy satellite photos from the 1960s.

In the winter and spring (2014), studies were done on how the accuracy of mapping depended on the starting point for optimization software. Five hundred good starting points were identified for each frame of a Corona image, and automated searches were done to minimize mapping error.

It was expected that these searches would identify a few local minima where the search software would get stuck and some of the searches would find a true minimum error state. It was discovered that the lowest minimum error corresponded to the 30m resolution of the images used for calibrating the mapping. Other minima were scattered over the parameter space instead of clustering at a few points.

At the suggestion of a National Aeronautic Space Administration colleague, mapping points were recalibrated on higher resolution imagery over several months. The starting point studies need to be repeated.

Work continues on providing and updating data resources for the educational website. The site is typically updated twice a year.

Get the Details

Fill out our inquiry form for an Admissions Counselor to contact you.

Inquiry Form
Apply Today

Create an account to start Your Applications.

Create an Account
Contact the Admissions Office?
Undergraduate Admissions

Contact Us

Image processing for NASA applications

Raja Kushalnagar

Hall Memorial Building N318


By submitting this form, I opt in to receive select information and deaf resources from Gallaudet University via email.
This field is for validation purposes and should be left unchanged.