Methods and systems for determining position of marine seismic spread components are disclosed. One method comprises exposing an underwater marine seismic spread component to an optical device, and calculating geometry of the spread component using at least some of the data obtained by the optical device,...http://www.google.com/patents/US20080008031?utm_source=gb-gplus-sharePatent US20080008031 - OPTICAL METHODS AND SYSTEMS IN MARINE SEISMIC SURVEYING