GIS AND THREE-DIMENSIONAL MODELING FOR CULTURAL HERITAGES

Development of ladder-type laser scanning system for 3-D modeling of large-scale cultural heritages

Abstract: In this paper, we propose a novel type of 3-D scanning system named Ladder-type laser scanning system. This system was designed for scanning narrow and vertically stalky spaces. The climbing sensor equips a platform with two line scanners on a lift, and they scan the whole target while the lift moves vertically. By using spatio-temporal range image we can accurately calculate the spee...

Developing Three-dimensional (3d) Topological Model for 3d Gis

3D spatial data modeling is one of the key research problems in 3D GIS. More and more applications depend on these 3D spatial data. Mostly, these data are stored in Geo-DBMSs. However, recent Geo-DBMSs do not support 3D primitives modeling, it only able to describe a single-attribute of the third-dimension, i.e. modeling 2.5D datasets that used 2D primitives (plus a single z-coordinate) such as...

Three-Dimensional Modeling

A scheme used in building models of three-dimensional objects through binocular and motion parallax analyses is presented. Some preliminary results in using the models for recognition are described, and a discussion of the major objectives summarizes the rationale of the work. The principal emphasis throughout the paper will be that effective vision requires flexible, domain-free, three-dimensi...

Three-Dimensional Modeling for Buildings Evacuation Management

Three-Dimensional Modeling Interface for Augmented Realities

Today’s geometric modeling tools are usually controlled by the mouse and keyboard. 3dmodeling operations are often constrained to planes or lines to make modeling easier. New augmented reality devices promise new classes of applications with natural 3d user interfaces. This paper deals with a new method that enables users to model 3d shapes directly with their fingers. It is implemented in Arti...