大容量体全息相关识别系统的相关峰光斑自动定位(英文)

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选用近化学计量比Mg:Fe:LiNbO3晶体作为存储器和相关器件,由于其良好的光学均匀性使得系统的散射噪声大量减少,从而显著改善了相关峰的质量。以邻域熵目标检测为基础,提出了一种基于邻域方差增长的相关峰光斑自动定位算法。不仅能够明确的区分边缘纹理和目标,而且定位不受背景亮度的影响。在1000幅的存储容量下,针对1024×768像素大小的相关读出图像,定位时间<3s,且定位准确,取得了比较满意的识别结果。
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