The Importance of Geometry Combined with New Techniques for Augmented Reality

Abstract

From the field of the “Geomatics Engineering”[1], better known as “Topographic Engineering” and other fields as “surveyors”, has always driven the knowledge of our environment in order to capture it on a support then allow other users to work, taking decisions on where you’ve never been, and are known early nautical charts, the world map, the cartographic maps of cities and countries, orthophotos and more recently around the digital medium, satellite images, google earth, etc... Augmented reality allows us to make visible developing products that take years but it was very difficult to bring them to the general public (requiring knowledge of cartographic techniques, knowledge of graphic expression, heritage documentation methods, ....) in this article want to show the techniques that allow us to make measurements of complete geometric precision to ensure that the final product is not only attractive but strictly accurate to the real model. We explain how we use robotic total stations with reflectorless measurement, centimeter GPS, 3D scanner, close range photogrammetry[2], all so that our model is strictly accurate. There are models that have intrinsic value in their own actions, no escape ancient Egyptian pyramid is not enough just to model it in an attractive way, but measurements have to be geometrically accurate if you want to test any hypothesis about their mathematical knowledge, astronomical, etc. For all this we believe that both techniques can support each other in achieving the best possible models, augmented reality will showcase showing geometrically exact elements obtained with geomatics techniques that can be displayed to the general public or even to researchers who know they are working real and exact values (an archaeological dig, a pyramid, a sculpture, caves, ...).