arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.08941cs.CV
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自动人脸理解:识别照片中的家庭

Automatic Face Understanding: Recognizing Families in Photos

Northeastern University(东北大学)

Joseph P Robinson

摘要:

我们建立了最大的亲属识别数据库。使用一种新的聚类算法标记数据,该算法使用标签建议作为辅助信息来指导更准确的聚类。节省了大量的时间和人力投入。从统计数据来看,FIW比其前任取得了巨大的进步。我们在亲属关系验证、家庭分类、三主题验证和大规模搜索和检索方面有几个基准。我们还在FIW上训练CNN,并在著名的KinWild I和II上部署模型以获得SOTA。最近,我们进一步增强了FIW与MM。现在,视频动态,音频和文本字幕可以用于亲属识别系统的决策。我们预计FIW将对研究和现实产生重大影响。此外,我们还解决了面部地标定位的经典问题。这些网络中的大多数具有基于L1或L2规范的目标,这继承了一些缺点。地标的位置是根据生成的热图确定的,根据热图,预测的地标位置在不考虑扩散的情况下受到惩罚:高散射对应于低置信度,反之亦然。为了解决这个问题,我们引入了一个惩罚低信心的目标。另一个问题是对标记数据的依赖,这是昂贵的收集和容易出错。我们通过提出一个对抗性训练框架来解决这两个问题,该框架利用未标记的数据来提高模型性能。我们的方法声称SOTA在著名的基准。此外,我们的模型是鲁棒的,具有较小的尺寸:1/8的通道数与CPU上的SOTA实时相当。最后,我们建立了BFW作为衡量种族和性别亚组偏倚的代理,使我们能够表征每个亚组的FR性能。我们发现,当使用单个阈值来确定样本对是否是真实的时,性能是非最优的。

英文摘要:

We built the largest database for kinship recognition. The data were labeled using a novel clustering algorithm that used label proposals as side information to guide more accurate clusters. Great savings in time and human input was had. Statistically, FIW shows enormous gains over its predecessors. We have several benchmarks in kinship verification, family classification, tri-subject verification, and large-scale search and retrieval. We also trained CNNs on FIW and deployed the model on the renowned KinWild I and II to gain SOTA. Most recently, we further augmented FIW with MM. Now, video dynamics, audio, and text captions can be used in the decision making of kinship recognition systems. We expect FIW will significantly impact research and reality. Additionally, we tackled the classic problem of facial landmark localization. A majority of these networks have objectives based on L1 or L2 norms, which inherit several disadvantages. The locations of landmarks are determined from generated heatmaps from which predicted landmark locations get penalized without accounting for the spread: a high scatter corresponds to low confidence and vice-versa. To address this, we introduced an objective that penalizes for low confidence. Another issue is a dependency on labeled data, which is expensive to collect and susceptible to error. We addressed both issues by proposing an adversarial training framework that leverages unlabeled data to improve model performance. Our method claims SOTA on renowned benchmarks. Furthermore, our model is robust with a reduced size: 1/8 the number of channels is comparable to SOTA in real-time on a CPU. Finally, we built BFW to serve as a proxy to measure bias across ethnicity and gender subgroups, allowing us to characterize FR performances per subgroup. We show performances are non-optimal when a single threshold is used to determine whether sample pairs are genuine.

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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