COMPUTING OF VOLUME OF EXCAVATION AREAS BY DIGITAL CLOSE RANGE PHOTOGRAMMETRY

Performance of volume calculation by digital close range photogrammetry hasbeen investigated. The potential use of 3D photomodelling in volume calculation ofcomplex objects which may not be accessible and are sometimes in a risky locationwas studied using an excavation area and a natural hill as examples. The volumesobtained from 3D photomodels of objects were compared with the volumescalculated using geodetic techniques. The results were analyzed with respect to time,cost, and accuracy. It was found that the photogrammetric method has advantages of21.89 % in time, 12.11 % in accuracy, and 33.33 % in cost as compared to theclassical method.