True orthophoto in urban areas

True orthophoto is a better product than classical in urban areas, because buildings are depicted the correct plane position, and content around building also visible. The main goal of our research was to verify two approaches true production: a) production based on digital terrain model model, b) automatic production. We performed test areas within Municipality Ljubljana. compared both procedures produced orthophotos with orthophoto, assessed time component as well. To produce larger overlapping aerial images required, thus for surveying increased by approximately 25 percentage. manual work, production, lower factor 0.27 automatically greater 2.75 model. Aesthetic appearance has only minor shortcomings buildings’ roof edges which slightly serrated. Considering all mentioned aspects, competitive orthophoto.