The capabilities of a Wave Acquisition Stereo System (WASS) are tested for the measurement of wave spectra. A first experiment with relatively low resolution cameras (2 megapixels) at 12 m height above the sea was conducted on the Marine Hydrophysical Institute platform in the Black Sea in October 2010. The acquisition of a few hours of data allowed testing the performance of the system in moderate wave conditions. The stereo video data is processed using an epipolar method into maps of the sea surface elevation every 0,1 s. The retrieved sea surface appears consistent for scales larger than 1 m, and suffers from various processing and discretization errors for the shorter scales. Although the field of view is only about 40 by 40 meters, the analysis of the direction of longer waves can be performed thanks to the linearity of these waves using classical array analysis techniques.

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