arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1507.07073cs.CV
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基于局部约束表示的鲁棒人脸对齐

Efficient Face Alignment via Locality-constrained Representation for Robust Recognition

South China University of Technology(华南理工大学);Peking University(北京大学);Shenzhen University(深圳大学);Chinese Academy of Sciences(中国科学院)

Yandong Wen, Weiyang Liu, Meng Yang, Zhifeng Li

摘要:

在过去的几十年里,人们一直在研究实用的人脸识别,但仍然是一个开放的挑战。目前流行的方法已经在识别精度方面取得了实质性的突破。然而,如果人脸样本严重错位,它们的性能通常会急剧下降。为了解决这个问题,我们提出了一个高效的误识鲁棒局部约束表示(MRLR)算法,用于实际的实时人脸识别。具体地说,局部约束,激活最相关的原子和抑制不相关的,被应用于构建字典的人脸对齐。然后,我们同时对齐扭曲的脸,并更新局部约束字典,最终获得最终的对齐。此外,我们利用块结构来加速导出的解析解。在公共数据集上的实验结果表明,MRLR在效率和可扩展性方面明显优于几种最先进的方法,具有更好的性能。

英文摘要:

Practical face recognition has been studied in the past decades, but still remains an open challenge. Current prevailing approaches have already achieved substantial breakthroughs in recognition accuracy. However, their performance usually drops dramatically if face samples are severely misaligned. To address this problem, we propose a highly efficient misalignment-robust locality-constrained representation (MRLR) algorithm for practical real-time face recognition. Specifically, the locality constraint that activates the most correlated atoms and suppresses the uncorrelated ones, is applied to construct the dictionary for face alignment. Then we simultaneously align the warped face and update the locality-constrained dictionary, eventually obtaining the final alignment. Moreover, we make use of the block structure to accelerate the derived analytical solution. Experimental results on public data sets show that MRLR significantly outperforms several state-of-the-art approaches in terms of efficiency and scalability with even better performance.

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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