Medio siglo documentando el patrimonio arquitectónico con fotogrametría

This article intends to review the evolution of photogrammetric techniques during the last fifty years from the author's experience in activities developed both in the field of monumental restoration and architectural research. The technological progress achieved in these years allows us to be optimistic about the future, estimating what has been accomplished, but being aware of the enormous work remaining to be done, which is endless since, as a consequence of the technological development itself and the need to advance knowledge of our heritage, imposes a continuous revision and improvement of the documentation process.