Photorealistic imaging of digital terrains, free forms, and thematic textures in real-time visualization system Voxel-Volumes

Sergei I. Vyatkin; Boris S. Dolgovesov; Valerie V. Ovechkin; Sergei E. Chizhik

doi:10.1117/12.280989

15 July 1997 Photorealistic imaging of digital terrains, free forms, and thematic textures in real-time visualization system Voxel-Volumes

Sergei I. Vyatkin, Boris S. Dolgovesov, Valerie V. Ovechkin, Sergei E. Chizhik

Author Affiliations +

Proceedings Volume 3085, Modeling, Simulation, and Visualization of Sensory Response for Defense Applications; (1997) https://doi.org/10.1117/12.280989
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

This paper highlights only three significant aspects of the proposed visualization system which features a lot of advanced techniques intended to synthesize a highly realistic visual environment for a diverse set of applications. The geometric model is based on non-polygonal representation, however it does support traditional objects, i.e. polygonal models could also be reconstructed and visualized. All geometric objects are uniformly and efficiently processed on dedicated hardware which implements the most specific and computationally excessive operations. Volume oriented rasterization algorithm and uniformity of object processing result in an efficient hidden surface removal and detection of spatial collisions. Chosen representation of terrain data is based on regular elevation map complemented with levels of detail. This approach has several advantages (rapid generation and modification, efficient data storing and retrieving) over polygomzed terrain models. Set of geometric objects is extended by freeform surfaces which simplify composition of smooth complex objects and simultaneously decrease data needed for storing them. To decorate surface of terrain thematic textures are used. It is supposed that observer is not often interested in the exact photographic information about the wide areas covered, for instance, by forest, water, etc., so that the benefits of photographic texture can be obtained by composing a number of patterns called "themes" to produce a final texture of the specific area. The goal of using thematic textures is to abolish the need of the global area texture, and additionally, animation features become available by simple means. Keywords: freeform surfaces, recursive multilevel ray casting, shape texture, volume visualization.

Citation Download Citation

Sergei I. Vyatkin, Boris S. Dolgovesov, Valerie V. Ovechkin, and Sergei E. Chizhik "Photorealistic imaging of digital terrains, free forms, and thematic textures in real-time visualization system Voxel-Volumes", Proc. SPIE 3085, Modeling, Simulation, and Visualization of Sensory Response for Defense Applications, (15 July 1997); https://doi.org/10.1117/12.280989

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Volume rendering

Imaging systems

Visualization

Fractal analysis

Computing systems

Databases

Digital imaging

Show All Keywords

Keywords/Phrases

Search In:

Publication Years