The need for a fast, efficient and low cost algorithm for extracting 3D features in urban areas is increasing. Consequently, research in feature extraction has intensified. In this paper we present a new technique to reconstruct buildings and other 3D features in urban areas using LIDAR data only. We have tried to show that dense LIDAR (Light detection and ranging) data is very suitable for 3D ...

The article is devoted to some aspects of the development urban planning systems. In particular, domestic peculiarities territories are determined, international experience systems accumulated and analyzed. practice, national system does not have clear priorities that would be formulated in accordance with needs population state interests. Accordingly, it cannot said state, through implementati...

SUMMARY This study aims at urban 3D features modeling/rendering system architecture design and its prototype implementations on 3D mobile and web 3D application. Mobile 3D is a cutting-edge technology. However, platforms and devices for mobile 3D GIS technology manipulating geographic data and information provide some limitations to design and implement. Despite, emerging standard mobile 3D gra...

Shape analysis of city growth is an essential means to develop a comprehensive city plan and the key elements of shape analysis are shape descriptors. Recently, many cellular urban models have been developed including the special models for lowland cities. Shape descriptors are the indices used for output of such urban models. Shape descriptors play a very important role in model fitness, calib...

Urbanization leads to distinct meteorological features of urban environments, and one the best-known is the urban heat island (UHI) effect. For megacities, these features become mesoscale phenomena (scale ≥ 10 km) that are amplified by the tropospheric feedbacks, and have substantial implications on human well-being. For the first time, a three-dimensional statistical description of the megacit...

In China, rapid economic growth and increasing foreign direct investment (FDI) is the driving force for urbanization, and transformation of urban spatial structures and transportation. Frequent interactive economic activities among the neighboring cities reinforce the already spatially clustered cities. In this paper we tried to extract the key urban transportation characteristics of seventy ma...