Advanced 3d Visualization of an Architectural Object
نویسندگان
چکیده
High accuracy and quality of photorealistic 3D modeling and visualization of close range objects can be achieved only with 3D scenes generated on the basis of photogrammetric data. Images and geometrical data for testing our original application were obtained from complex photogrammetric architectural object restitution. The object was recorded with a digital camera Kodak DC 4800 with 3.1 Megapixel resolution. Measurement and data processing were carried out in PICTRAN B/D/E/O software. In addition, the vector planes of facades were received as a result of 3D sterodigitizing on a VSD digital stereoplotter. The photogrammetric vector and raster data on the object and their mutual relations provided the information for visualization. A graphic library in OpenGL standard and Delphi programming tools enriched with GLScene components were applied in the present application designed for dynamic 3D visualization of objects registered in close range. The application allows to modify the visualized 3D scene by looking at the object from any viewpoint. It also enables its rotation, translation and scale change, camera position reconstruction, etc. It follows that the application permits dynamic realistic 3D visualization with simultaneous preservation of real geometrical relations.
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