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arXiv 1603.04588cs.CV
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排斥张量分类方法在人脸识别中的应用

Classification with Repulsion Tensors: A Case Study on Face Recognition

Hawren Fang

摘要:

我们考虑在监督设置中的人脸识别的降维方法,使用图像作为矩阵表示。一个常见的过程是将图像矩阵投影到一个较小的空间中,在该空间中进行识别。这些方法在文献中通常被称为“二维”,并且存在使用图像作为矢量表示的对应物。当两个人脸图像在输入空间中彼此接近时,它们可以在投影后保持接近-但是这在这两个图像来自不同类别的情况下是不期望的,并且这经常影响识别性能。我们扩展了以前开发的“排斥拉普拉斯”技术的基础上添加条款的目标函数的目标或创建一个排斥能量之间的图像在投影空间。该方案依赖于排斥图,是通用的,可以被纳入各种二维方法。它可以被看作是Kokiopoulou和Saad [Pattern]的排斥策略的多线性推广,42(2009),pp. 2392- 2402]。实验结果表明,所提出的方法提供了显着的识别改善相对于底层的二维方法。

英文摘要:

We consider dimensionality reduction methods for face recognition in a supervised setting, using an image-as-matrix representation. A common procedure is to project image matrices into a smaller space in which the recognition is performed. These methods are often called "two-dimensional" in the literature and there exist counterparts that use an image-as-vector representation. When two face images are close to each other in the input space they may remain close after projection - but this is not desirable in the situation when these two images are from different classes, and this often affects the recognition performance. We extend a previously developed `repulsion Laplacean' technique based on adding terms to the objective function with the goal or creation a repulsion energy between such images in the projected space. This scheme, which relies on a repulsion graph, is generic and can be incorporated into various two-dimensional methods. It can be regarded as a multilinear generalization of the repulsion strategy by Kokiopoulou and Saad [Pattern Recog., 42 (2009), pp. 2392--2402]. Experimental results demonstrate that the proposed methodology offers significant recognition improvement relative to the underlying two-dimensional methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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