【摘要】 设计了一种可在空域执行的综合鉴别滤波器 (SDF) ,并将其应用于光电混合处理、光学模式识别系统中 ,采用频域执行的SDF光学滤波和空域执行的SDF数字滤波相结合的方法 ,对输入场景中的三维目标进行实时、畸变不变识别 .通过综合鉴别滤波的数值模拟和实时、畸变不变相关识别的硬件光学执行实验显示 :该滤波技术可显著提高光学模式识别系统的识别效率 ,增强系统抗强背景噪声干扰的能力 ,从而改善系统的识别性能更多还原

【Abstract】 The synthetic discriminant filters (SDF) performed in spacial domain are designed and applied in a digital optical hybrid processing system to perform distortion invariant recognition. The SDF digital filtering in spacial domain is combined with the optical filtering in frequency domain to make real time 3 D objects distortion invariant recognition. The results of SDF numerical simulation and hardware optical implementation of the real time distortion invariant recognition show that this filtering technique can remarkably improve recognition efficiency of OPR system in strong noise background. The recognition preformances of OPR system are improved greatly by this technique.更多还原