New approach for earth surface modeling for real-time rendering perspective views

Wolfgang Baer; J. R. Akin

doi:10.1117/12.146693

10 June 1993 New approach for earth surface modeling for real-time rendering perspective views

Wolfgang Baer, J. R. Akin

Proceedings Volume 1904, Image Modeling; (1993) https://doi.org/10.1117/12.146693
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1993, San Jose, CA, United States

Abstract

The problem of realistic, high-resolution, earth surface representation for real-time, rendered, video-quality perspective view generation has been approached by using a quantized rendering transform to code image measurements into physical surface modeling descriptors. This paper describes a physical earth surface model and approximates natural light energy scattering equations to derive a transform between photogrammetric measurements and model parameters. This transform was used to translate a 12 Gbyte, photo image, data base covering 400 sq km of Ft. Hunter Liggett, CA into a 1.2 Gbyte surface descriptor file. A prototype transputer-based parallel processing system is also presented. The system uses the rendering transform to calculate real-time perspective views at operator-selectable times, seasons, and environmental conditions. The system produces video-realistic perspective views at a rendering rate of .5 Mpixels/second and is scalable by a factor of 80.

Citation Download Citation

Wolfgang Baer and J. R. Akin "New approach for earth surface modeling for real-time rendering perspective views", Proc. SPIE 1904, Image Modeling, (10 June 1993); https://doi.org/10.1117/12.146693

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