First Draft uses cookies to distinguish you from other users of our website. They allow us to recognise users over multiple visits, and to collect basic data about your use of the website. Cookies help us provide you with a good experience when you browse our website and also allows us to improve our site. Check our cookie policy to read more.
Cookie Policy.
This website is hosted in perpetuity by the Internet Archive.
Turn on subtitles for your language by clicking CC
Este vídeo le muestra como detectar pistas visuales de una imagen o vídeo que luego podrá comparar con mapas, imágenes de satélite y otras bases de datos.