国际光学工程学会
期刊
会议
图书
作者:Xiaohui Wang , Yingxiong Song
来源:[J].Optical Engineering(IF 0.88), 2018, Vol.57 (2), pp.024105-024105SPIE
摘要:By exploiting the non-Kolmogorov model and Rytov approximation theory, a propagation model of Bessel–Gaussian vortex beams (BGVB) propagating in a subway tunnel is derived. Based on the propagation model, a model of orbital angular momentum (OAM) mode probability distributio...
作者:Xiaohui Wang , Yanbo Ma ...
来源:[J].Optical Engineering(IF 0.88), 2015, Vol.54 (5), pp.053103-053103SPIE
摘要:One of the greatest challenges of representation-based face recognition is that the training samples are usually insufficient. In other words, the training set usually does not include enough samples to show varieties of high-dimensional face images caused by illuminations, facia...

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