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首页> 外文期刊>Applied optics >REAL-TIME OPTICAL IMAGE SUBTRACTION AND EDGE ENHANCEMENT USING FERROELECTRIC LIQUID-CRYSTAL DEVICES BASED ON SPECKLE MODULATION
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REAL-TIME OPTICAL IMAGE SUBTRACTION AND EDGE ENHANCEMENT USING FERROELECTRIC LIQUID-CRYSTAL DEVICES BASED ON SPECKLE MODULATION

机译:基于散斑调制的铁电液晶器件实时光学图像减影和边缘增强

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摘要

We carried out real-time optical image subtraction and edge enhancement based on a speckle modulation technique by using ferroelectric liquid-crystal polarization switches and a ferroelectric Liquid-crystal spatial light modulator. A ferroelectric liquid-crystal spatial light modulator is employed as a real-time and multiple-exposure optical device, and successful results are obtained from three-exposure images modulated by speckles. Thus, image subtraction and edge enhancement are realized in real time. The whole operation is performed within several milliseconds with modest operating conditions. Because the spatial light modulator has a high resolution of greater than 100 line pairs/mm and can store fine speckle patterns, the image qualities we obtained are quite satisfactory. (C) 1996 Optical Society of America [References: 22]
机译:我们使用铁电液晶偏振开关和铁电液晶空间光调制器,基于斑点调制技术进行了实时光学图像减法和边缘增强。将铁电液晶空间光调制器用作实时多重曝光光学装置,并从通过斑点调制的三曝光图像获得成功的结果。因此,实时地实现了图像相减和边缘增强。在适当的操作条件下,整个操作在几毫秒内完成。因为空间光调制器具有大于100个线对/ mm的高分辨率,并且可以存储精细的斑点图案,所以我们获得的图像质量非常令人满意。 (C)1996年美国眼镜学会[参考文献:22]

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