Archive > Volume 16 Issue 1 > 2020,16(1):65-74. DOI:https://doi.org/10.1007/s11801-020-9040-2 CSTR:[cstr] Prev Next
ign language learning based on high-speed fringe projection profilometry employing defocused binary fringe
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Abstract:
A high-speed fringe projection profilometry employing defocused binary fringe is presented to record the 3-D sign language, including gesture and mouth movement, to help people learn the sign language. It employs a number of advanced approaches, such as fringes binarization and defocus method, high precision phase calculation based on the phase-shifting method and the three pitches heterodyne unwrapping (TPHU) method, and how to combine multiple binary fringes into a 24-bit fringe. Experiments have shown that the proposed system can acquire and display high-quality 3D gesture and mouth movement at a speed of 500 frames per second.
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