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加权分块局部保留投影的人脸识别

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摘要 局部保护投影(LPP)算法属于无监督的算法,仅仅考虑到人脸图像的全局特征,针对LPP算法的局限性,提出了一种加权分块局部保留投影的人脸识别方法。首选把所有人脸图像训练样本分割成相等且不重叠的子图像,并将位置相同的子图像聚集起来,然后对每个子图像集分别应用LPP算法,接着结合信息熵权函数计算各子图像集相应的权重。实验证明该算法的识别率相对于传统的LPP算法具有一定的提高,能够较好地克服光照、表情和姿态变化的影响。
作者 黄小池
出处 《黑龙江科技信息》 2013年第17期90-90,100,共2页 Heilongjiang Science and Technology Information
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