Statistical comparison of photogrammetry close range equipments at low cost

Resumo

The terrestrial or close range photogrammetry at low cost is a hig potential tool for the measuring of heritage elements inthe rural traditional architecture. It´s a quick technique, easy to use, which involves low cost and gives us enough accuracy for thisgoal.The terrestrial photogrammetry at low cost is a great potential tool for the measuring of rural constructions. The measuringof traditional architectonic elements in the rural environment has a range of characteristic complexities. Generally, its locationcomplicates the measurin with photogrammetry owing to the obstacles existence, which makes difficult the vision of the object. Forthis and some others matters it proves to be very useful to have available tools that let us improve the 3-D model quality of theconstruction created by means of architectonic photographic techniques at low cost.Not all the photogrammetry architectonic equipments at low-cost are equally accurate. According to the componentsthey´re made up of, they will give one accuracy or another. It´s interesting to know their performance in real working conditions inthe country.We have designed a statistical process to evaluate the behaviour of the different photogrammetry architectural equipmentsalt low cost in real working conditions in the country.The developed method was applied to a study about a traditional rural construction that represents the difficulties we find inthe countryside when we use photogrammetric techniques. The measuring of this construction was carried through by means ofdifferent architectural photogrammetry equipments al low cost