A SDF (Synthetic Discriminant Function) could not cover a large distortion range to ensure a good correlation recognition.There exists a limitation for the training image number of a SDF.A spatial multichannel technique based on the diffraction speciality of the spatial light modulator is proposed to extend the Distortion-Invariant range of SDF.Simulation and experimentation prove the technique feasible.
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姚广涛,沈学举,王金玉.基于空间光调制器衍射特性的匹配滤波器设计[J].激光与红外,2008,38(5):506~508 YAO Guang-tao, SHEN Xue-ju, WANG Jin-yu. Mached Filters Design Using Spatial Multichannel Technique[J]. LASER & INFRARED,2008,38(5):506~508