Learning deep compact similarity metric for kinship verification from face images

X Zhou, K Jin, M Xu, G Guo - Information Fusion, 2019 - Elsevier
Information Fusion, 2019Elsevier
Recent advances in kinship verification have shown that learning an appropriate kinship
similarity metric on human faces plays a critical role in this problem. However, most of
existing distance metric learning (DML) based solutions rely on linearity assumption of the
kinship metric model, and the domain knowledge of large cross-generation discrepancy (eg,
large age span and gender difference between parent and child images) has not been
considered in metric learning, leading to degraded performance for genetic similarity …
Abstract
Recent advances in kinship verification have shown that learning an appropriate kinship similarity metric on human faces plays a critical role in this problem. However, most of existing distance metric learning (DML) based solutions rely on linearity assumption of the kinship metric model, and the domain knowledge of large cross-generation discrepancy (e.g., large age span and gender difference between parent and child images) has not been considered in metric learning, leading to degraded performance for genetic similarity measure on human faces. To address these limitations, we propose in this work a new kinship metric learning (KML) method with a coupled deep neural network (DNN) model. KML explicitly models the cross-generation discrepancy inherent on parent-child pairs, and learns a coupled deep similarity metric such that the image pairs with kinship relation are pulled close, while those without kinship relation (but with high appearance similarity) are pushed as far away as possible. Moreover, by imposing the intra-connection diversity and inter-connection consistency over the coupled DNN, we introduce the property of hierarchical compactness into the coupled network to facilitate deep metric learning with limited amount of kinship training data. Empirically, we evaluate our algorithm on several kinship benchmarks against the state-of-the-art DML alternatives, and the results demonstrate the superiority of our method.
Elsevier
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