首页> 外文会议>Conference on Algorithms and Systems for Optical Information Processing Ⅴ Jul 31-Aug 2, 2001, San Diego, USA >Isotropic edge enhancement filter implemented with a phase-only spatial light modulator
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Isotropic edge enhancement filter implemented with a phase-only spatial light modulator

机译:使用仅相位空间光调制器实现的各向同性边缘增强滤波器

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In this work we present three spatial filters that perform isotropic edge enhancement or recognition. Their design is based on first determining a convolution kernel that performs the desired operation and then, by Fourier transforming, obtaining the filter function. To the authors' best knowledge, these filters have not been proposed in the past. We present numerical simulations that corroborate our proposal. For the optical implementation of one of the proposed filters, a holographic technique capable of representing complex transmittances is required. In this case, the filter is simulated using a double-phase holographic code.
机译:在这项工作中,我们介绍了执行各向同性边缘增强或识别的三个空间滤波器。他们的设计基于首先确定执行所需操作的卷积核,然后通过傅立叶变换获得滤波函数。据作者所知,过去没有提出过这些过滤器。我们提出了数值模拟,佐证了我们的建议。对于所提出的滤波器之一的光学实现,需要一种能够表示复杂透射率的全息技术。在这种情况下,使用双相全息代码对滤波器进行仿真。

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