arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1712.01643cs.CVcs.AI
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基于判别投影表示的视觉识别分类

Discriminant Projection Representation-based Classification for Vision Recognition

University of Macau(澳门大学)

Qingxiang Feng, Yicong Zhou

摘要:

基于表示的分类方法,如稀疏表示分类(SRC)和线性回归分类(LRC)已经引起了人们的广泛关注。为了获得更好的表示,本文提出了一种新的方法称为投影表示为基础的分类(PRC)的图像识别。PRC基于一个新的数学模型。该模型表明,采样点$x$在超空间$H$上的“理想投影”可以通过采用适当的策略迭代计算$x$在超空间$H$的一条直线上的投影而得到。因此,PRC能够迭代地近似每个主题的“理想表示”以进行分类。此外,判别PRC(DPRC)进一步提出,通过最大化的类间重建误差的类内重建误差的比率获得的判别信息。在五个典型数据库上的实验结果表明,提出的PRC和DPRC是有效的,优于其他国家的最先进的方法在几个视觉识别任务。

英文摘要:

Representation-based classification methods such as sparse representation-based classification (SRC) and linear regression classification (LRC) have attracted a lot of attentions. In order to obtain the better representation, a novel method called projection representation-based classification (PRC) is proposed for image recognition in this paper. PRC is based on a new mathematical model. This model denotes that the 'ideal projection' of a sample point $x$ on the hyper-space $H$ may be gained by iteratively computing the projection of $x$ on a line of hyper-space $H$ with the proper strategy. Therefore, PRC is able to iteratively approximate the 'ideal representation' of each subject for classification. Moreover, the discriminant PRC (DPRC) is further proposed, which obtains the discriminant information by maximizing the ratio of the between-class reconstruction error over the within-class reconstruction error. Experimental results on five typical databases show that the proposed PRC and DPRC are effective and outperform other state-of-the-art methods on several vision recognition tasks.

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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