Mobile augmented reality system is the next generation technology to visualise 3D real world intelligently. The technology is expanding at a fast pace to upgrade the status of a smart phone to an intelligent device. The research problem identified and presented in the current work is to view actual dimensions of various objects that are captured by a smart phone in real time. The methodology pr...

In urban areas Light Dectection and Ranging (LIDAR) data is becoming a widely available source for the construction of Digital Surface Models (DSMs). Because the urban surfaces have specific geometric characteristics such as discontinuities in terms of elevation and slope gradient, the interpolation of the irregularly spaced set of Lidar points to a regular grid have to be done carefully. In fa...

Modern geographic information system (GIS) tools have allowed a more careful examination of how the physical characteristics of a property’s neighborhood and surrounding land uses are capitalized into property values. The ArcGIS Viewshed tool is a case in point: it identifies the cells in an input raster that can be seen from one or more observation points. In this study, we use the tool in a h...

This paper explores the use of World Wide Web (WWW, or simply Web) as a means of designing and developing a toolkit, GeoV&A, for interactive 3D visualization and analysis of existing 2D Geographical Information System (GIS) data. The toolkit is mainly composed of two parts. One is a 3D visualization tool and the other is a 3D analysis tool, including profile creation, viewshed analysis, volumet...

Pen and ink style geomorphological illustrations render landscape elements critical to the understanding of surface processes within a viewshed and, at their highest levels of execution, represent works of art. Although practical and beautiful, the execution of a pen and ink composition requires inordinate amounts of time and skill. This paper will introduce an algorithm for rendering creases—l...

This paper presents an experimental study of a new algorithm that synthesizes separate programs, for fast viewshed, and for fast approximate visibility index determination, into a working testbed for siting multiple observers jointly to cover terrain from a full level-1 DEM, and to do it so quickly that multiple experiments are easily possible. Both the observer and target may be at a given fix...

The Nasca geoglyphs in southern Peru are today usually viewed from the air. This has led to the false impression that they are only visible from above. In contrast, archaeological evidence shows that a continuous and manifold chain of activities took place on geoglyph sites during the Nasca period (200 BC – AD 650), involving large parts of the ancient population. These activities likely requir...

Visibility (or viewshed) analysis, a common function in geographical information systems, is used wide range of fields such as urban planning, landscape management, and ecological research. However, measuring fine-scale visibility within forest environment challenging due to the structural complexity plant architecture. Here we propose new method for estimating forests using terrestrial laser s...