Casasent D, Schaefer R, Sturgill R
Appl Opt. 1992 Oct 10;31(29):6255-63. doi: 10.1364/AO.31.006255.
We present an optical correlator implementation of the morphological hit-miss transform. This provides improved recognition of objects in clutter compared with standard optical pattern-recognition correlator techniques. The hit-miss transform is modified to use rank-order filtering since this gives better performance in noise and clutter. By varying the correlation plane threshold, we can perform dilations, rank-order filters, and erosions on the same multifunctional coherent optical correlator system. We quantify the thresholds required for generic object part recognition and provide simulated and optical laboratory data.
我们展示了形态学击中-击不中变换的光学相关器实现。与标准光学模式识别相关器技术相比，这提高了在杂波中对物体的识别能力。由于在噪声和杂波中性能更好，击中-击不中变换被修改为使用排序滤波。通过改变相关平面阈值，我们可以在同一个多功能相干光学相关器系统上执行膨胀、排序滤波和腐蚀操作。我们量化了通用物体部分识别所需的阈值，并提供了模拟数据和光学实验室数据。
