Thomas Swearingen

Papers from this author

Lookalike Disambiguation: Improving Face Identification Performance at Top Ranks

Thomas Swearingen, Arun Ross

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Auto-TLDR; Lookalike Face Identification Using a Disambiguator for Lookalike Images

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A face identification system compares an unknown input probe image to a gallery of face images labeled with identities in order to determine the identity of the probe image. The result of identification is a ranked match list with the most similar gallery face image at the top (rank 1) and the least similar gallery face image at the bottom. In many systems, the top ranked gallery images may look very similar to the probe image as well as to each other and can sometimes result in the misidentification of the probe image. Such similar looking faces pertaining to different identities are referred to as lookalike faces. We hypothesize that a matcher specifically trained to disambiguate lookalike face images and combined with a regular face matcher may improve overall identification performance. This work proposes reranking the initial ranked match list using a disambiguator especially for lookalike face pairs. This work also evaluates schemes to select gallery images in the initial ranked match list that should be re-ranked. Experiments on the challenging TinyFace dataset shows that the proposed approach improves the closed-set identification accuracy of a state-of-the-art face matcher.