Approach for real-time terrain database creation from aerial imagery

Wolfgang Baer

doi:10.1117/12.157134

15 October 1993 Approach for real-time terrain database creation from aerial imagery

Wolfgang Baer

Proceedings Volume 1943, State-of-the-Art Mapping; (1993) https://doi.org/10.1117/12.157134
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

The problem of rapidly generating accurate object material descriptor databases of the earth's surface has been approached using a quantized rendering transform to code photogrammetric image measurements into physical surface parameters. The approach eliminates the lighting effect inherent in aerial photos which view earth surface elements from different perspectives. It reduces the multi-aspect photographic spectral measurements to objective surface properties which are then used for automated object and surface material classification. This paper presents the algorithms and design for a terrain database creation workstation used to generate 1 meter resolution data. The system was used to digitize approximately 200 aerial photos covering a 400 sq km area of Ft. Hunter Liggett, Calif. and translated into a 1.2 gigabyte surface descriptor database. Included in the workstation is a parallel processing, transputer- based, perspective view generator which uses the rendering transform to calculate side views at real-time rates. The use of this subsystem as a real-time feedback and quality control mechanism during database creation is described and the technique extended to real-time terrain database update systems.

Citation Download Citation

Wolfgang Baer "Approach for real-time terrain database creation from aerial imagery", Proc. SPIE 1943, State-of-the-Art Mapping, (15 October 1993); https://doi.org/10.1117/12.157134

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available