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Structure from motion
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<p>Structure from motion (SfM) is a <a href="/facts/Photogrammetry/KoXsRImj">photogrammetric</a> <a href="/facts/Range_imaging/MSySNrR1">range imaging</a> technique for estimating three-dimensional structures from two-dimensional image sequences that may be coupled with local <a href="/facts/Motion_estimation/FF2TIndo">motion signals</a>. It is a classic problem studied in the fields of <a href="/facts/Computer_vision/Tl2Yyk66">computer vision</a> and <a href="/facts/Visual_perception/g7Tfaq2l">visual perception</a>. In computer vision, the problem of SfM is to design an algorithm to perform this task. In visual perception, the problem of SfM is to find an algorithm <a href="/facts/Structure_from_motion_(psychophysics)/fDkuR6Rk">by which biological creatures perform this task</a>. </p>