Tipically, the statistical and spectral properties of ocean waves, measured in deep waters or near the coast, are inferred by measuring instruments at a fixed point 'P'. However, the information derived from a point measurement can not accurately predict what occurs in waves space-time dynamics in an area centered at the point 'P'. Futhermore in-situ spot measurements requires expensive equipment and difficult deployment and maintance. In order to optimize the wave measurement at sea, low-cost stereo-video techniques, using smartphone cameras, are used in this study to measure sea surface elevation, for the first time, specifically in Leme Beach - Brazil. These measurements will be compared against insitu measurements from one acoustic current profiler. Stereo-video techniques have been widely used and allow to observe the spatial structure of waves and their evolution over time. This technique provides wave field characteristics in four dimensions, which allows the direct calculation of the three-dimensional wave number spectrum, which reveals important wave properties, such as probabilities of exceedance of heights, orbital velocity profile and energy properties. Therefore, the dimensioning of structures in the sea, can be better determined from information of the wave field acting in a given area. The wave height near the surf-zone can be obtained from this technique, which has a significant importance for the sedimentary transport and hydrodynamics numerical models, widely used in studies of coastal engineering. The velocity profile of the waves along the water column is also fundamental for the stress calculation in structures at sea, and can be obtained indirectly by stereo-video. In addition to being more robust and complete in terms of results, stereo-video techniques requires less financial cost and is applicable in regions of difficult access, such as in coastal regions, or in hostile situations where wave energy offers direct risk to operations at sea.