Digital Photogrammetry Grid (dpgrid) and Its Application
نویسندگان
چکیده
Digital Photogrammetry Grid (DPGrid) is the new generation of processing system with high efficiency for digital photogrammetry, developed based on computer network, cluster parallel processing and the new development of photogrammetry, in Wuhan University, P. R. China. The general situation of DPGrid is introduced firstly in this paper, including brief introduction of hardware, normal photogrammetry, fast update of orthoimage, and special photogrammetry of DPGrid. Then some applications in quick update of orthoimage, low altitude photogrammetry and emergency response are introduced.
منابع مشابه
A field investigation of application of digital terrestrial photogrammetry to characterize geometric properties of discontinuities in open-pit slopes
In order to analyze the slope stability in open-pit mines, the structural parameters of rock mass such as persistence and spatial orientation of discontinuities are characterized through field surveys, which involve spending high costs and times as well as posing high risks of rock toppling and rock fall. In the present work, a new application of terrestrial digital photogrammetry is introduced...
متن کاملRock mass structural characterization via short-range digital photogrammetry
Because of the important role of rock mass structural properties on its mechanical behavior, determining the qualitative and quantitative properties of has been a subject of intense research. In this regard, numerous techniques such as scanline surveying, cell mapping, and geologic structure mapping have been proposed. However, applying such field surveying techniques for rock mass properties i...
متن کاملPerformance of the Imaging System in the Lh Systems Ads40 Airborne Digital Sensor
The LH Systems ADS40 airborne digital sensor fulfils photogrammetric and remote sensing requirements. The new sensor is not only a camera to acquire attractive pictures: it is the next fully digital generation of measurement device for airborne photogrammetry and remote sensing. The accuracy of the lens and focal plane system under flight conditions (pressure and temperature) is described and a...
متن کاملUAV-Based Optical Granulometry as Tool for Detecting Changes in Structure of Flood Depositions
This paper presents a new non-invasive technique of granulometric analysis based on the fusion of two imaging techniques, Unmanned Aerial Vehicles (UAV)-based photogrammetry and optical digital granulometry. This newly proposed technique produces seamless coverage of a study site in order to analyze the granulometric properties of alluvium and observe its spatiotemporal changes. This proposed t...
متن کاملCalibration of a Projector with a Planar Gird
The projector is being frequently used in broad range of the photogrammetric measurements with the development of non-contact measurement in the close-range photogrammetry, because a projector can project any pattern onto the measured object for controlling and calculating. Before using a projector, the interior parameters of it have to be calibrated first. Hence, the projector calibration is a...
متن کامل