1. China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China 2. China Zhengyuan Geomatics Co., Ltd., Ji’nan 250101, China; 3. Beijing Graphics and Image Information Technology Co., Ltd., Beijing 100083, China 4. Xinyang Normal University, Xinyang 464000, China
Lenticular stereoscopic images have been widely used in the three-dimensional expression of characters, landscapes and geomorphic features, but they have not yet been found in the visualization of depression shape of regional subsidence. Based on the research and introduction of the lenticular stereoscopic principle, the authors produced a lenticular stereoscopic subsidence map. The J50 thematic map of land subsidence at the scale of 1:1 000 000 was used as the data source. After the three-dimensional simulation using the subsidence isoline, the images series with different viewing angles were generated based on the simulated scene. Then, the images series were sampled and arranged to compose the base map. Finally, the base map was printed on the lenticular plate and properly processed. The research shows that the subsidence field can be innovatively and intuitively visualized using 3D GIS, digital image processing and lenticular stereoscopic technology.
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