METHOD OF DETECTING OBJECTS UNDER WATER Russian patent published in 2011 - IPC G02B27/00 

FIELD: physics.

SUBSTANCE: stereoscopic images of the monitored underwater space are taken directly in the aquatic medium, wherein the monitored space is illuminated and the serial images obtained are analysed. When implementing the method, stereoscopic images are simultaneously taken from several spatially distributed points, the direction of observation and the distance between which is selected based on the condition for providing maximum possible continuity of viewing the monitored space. All stereoscopic images obtained at each given time instant are analysed and boundaries of the monitored space and/or protected object and/or a region in its immediate vicinity are illuminated. Foreign objects are identified from their shadows from light sources on multi-aspect images obtained beyond the illuminated area.

EFFECT: efficient monitoring of extended and large-area underwater areas while preserving advantages of stereoscopic photography.

4 cl, 7 dwg