| Popis: |
The increased importance and sophistication of modern computer modeling capabilities has led to a need for high-quality databases to represent complex scenes. Such databases must contain complete and accurate three-dimensional descriptions of selected areas, along with material classifications and other relevant information. Typically, no single sensor input can provide such complete information; data from multiple sources must be integrated to construct the database. This paper surveys key issues in scene representation. In particular, it outlines methods to construct a database from different image and cartographic sources, describes required database architecture and content, and presents an object-oriented representation approach which we call object hierarchy. |
