according to the logic of 'weak ties' partnership organized through links with a wider range of people causes of social capital among a group of citizens will increase. so it seems, increasing participation among people, ultimately leading to increased cooperative activities among them. while the impact of social networks on political relations, much attention has been. there is very ...

This paper shows the use of synthetic images obtained from digital surface models to optimize, on the one hand, photogrammetric planning, and on the other, computer animations. Synthetic images are generated in a photogrammetric simulator built up to project 3D models onto images, after defining a virtual (or real) photogrammetric camera with known inner orientation parameters. The outer orient...

This paper has introduced a slope photogrammetric mapping using unmanned aerial vehicle. There are two units of UAV has been used in this study; namely; fixed wing and multi-rotor. Both UAVs were used to capture images at the study area. A consumer digital camera was mounted vertically at the bottom of UAV and captured the images at an altitude. The objectives of this study are to obtain three ...

Advances in both terrestrial laser scanning (TLS) hardware and photogrammetric solutions combined are creating increasingly more precise and rich 3D coloured data. In this article we show how Computer Graphics and Visualization techniques have played an important role in managing, modelling, and fusing data in an increasing myriad of applications such as environmental surveying, structure analy...

This paper describes the use of digital photogrammetry for measurement of deflections in concrete beams during destructive testing. A two-video camera system was used to measure vertical deflections with a precision of ±0.25mm (1σ). The system, network design and processing methods are described in detail. Results are presented from several tests of different types of beams. Some of the advanta...

We present applied examples of laser scanner survey and data processing using phase measuring system. Beside the time of flight principle, the phase measurement principle represents another technique for medium ranges laser survey. High speed of acquisition, very high data density and resolution open new application frontiers in cultural heritage, but poses challenging problems with regard to d...

Laser scanners are becoming popular since they provide fast and dense geometric surface information. However, sudden elevation changes along the surface are not clearly visible in the laser data due to the sparse distribution of captured points. In general, laser data provides high density surface information in homogenous areas and low density surface information elsewhere (i.e., object space ...

In the last years, small and medium format digital cameras have become a potential tool for photogrammetric applications due to its convenience, availability and quick image acquisition and processing. In addition, the resolution of these cameras has significantly increased while their price decreased. However, to extract accurate and reliable 3D metric information from images, an important con...

Traditional photogrammetric method has been a system for documentation, 3D modelling for long years. After the development of digital photogrammetrical systems, map products can be monitored in CAD platforms. Placing models in CAD had verified flexibility for getting information from model and easy editing for modelling. Terrestrial Laser Scanning Systems provide modelling of objects without sc...