以下为句子列表：
英文: Abstract: A improved method using simple instrument to expand Gaussian distribution light field and get large-range homogeneous ideal light field was presented.An optical setup used to expand Gaussian distribution light field was designed to improve the u
中文: 文摘:提出采用简单器件，将高斯分布光场经再扩展，获得大范围均匀的理想光场的方法；设计了对高斯分布光场再扩展光路，并提高散射光场光能的利用率，取得良好的实验效果。
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英文: By applying generalized Gaussian distribution to statistically model the alternating current coefficient of discrete cosine transform, the technology of the blind image watermark is studied and the performance of the new detector is analyzed.
中文: 摘要根据数字图像离散余弦变换域交流系数的广义高斯分布模型，对盲图像水印技术进行研究，并给出了水印检测器检测性能的理论分析结果。
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