Modern Geodata Management: Application of Interdisciplinary Interpretation and Visualization in Central America

Figure 3

The low-cost 3D stereoscopic projection equipment of our working group. Two data projectors (right side of the figure) deliver two perspective views, passing perpendicular aligned polarization filters. A reflective-coated screen (left side) preserves the polarization state of each picture due to metallic reflection. Viewing through polarizing glasses, each eye just sees its distinct perspective view, and a stereoscopic depth impression is the result. Compare the simple sketch in the right upper corner, as it demonstrates the technical principle of such a Geowall setup [32].