Yoo, Byounghyun 2024-01-20T13:03:50Z 2024-01-20T13:03:50Z 2021-08-31 2013-01-01 1365-8816 https://pubs.kist.re.kr/handle/201004/128463 The depiction and navigation of large-scale urban landscapes are limited by the great cost of traditional computer-aided design (CAD) models for large urban environment in terms of both the labor of data entry and the runtime computational expense. This article presents a hybrid modeling approach that enables rapid urban model production from legacy spatial data. Our scheme fills the gap between the low geometry models, such as photo-textured digital terrains, and high geometry models, such as true three-dimensional CAD models. To achieve optimal performance in modeling and rendering, we employ bilayered displacement mapping consisting of global displacement mapping (GDM) for terrains and local displacement mapping (LDM) for buildings. The LDM is performed only within image processing so that the complexity of the models depends only on the area of an urban model. We present a use case of rapid urban model production to compare our approach with the traditional polygonal urban models of a widely used geo-browser. English TAYLOR & FRANCIS LTD BUILDING RECONSTRUCTION GEOMETRY IMAGES 2D Rapid three-dimensional urban model production using bilayered displacement mapping Article 10.1080/13658816.2012.661055 1 INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE, v.27, no.1, pp.24 - 46 INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE 27 1 24 46 scie ssci scopus 000319173800002 Computer Science, Information Systems Geography Geography, Physical Information Science & Library Science Computer Science Geography Physical Geography Information Science & Library Science Article BUILDING RECONSTRUCTION GEOMETRY IMAGES 2D urban modeling image-based modeling hybrid urban model displacement mapping