Eye localization based on correlation filter bank
2014
Eye localization is a key step in many face analysis related applications. In this paper, we present a novel eye localization method based on a group of trained filters called correlation filter bank (CFB). We formulate the eye localization problem as an optimization problem with a well-defined cost function based on CFB. The CFB is trained with an EM-like adaptive clustering approach. The trained filter bank includes several discriminative filter templates, each of them suits to a different face condition from the others, thus can provide accurate eye localization ability for variable poses, appearances and illuminations. Simulation comparisons with cascade classifier-based method [1], traditional single correlation filter based methods [2][3] and pictorial structure model based method [4] demonstrates the superiority of the proposed method both in detection ratio and localization accuracy.
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