Do We Need Depth in State-Of-The-Art Face Authentication?

• URL: http://arxiv.org/abs/2003.10895v2
• Date: Tue, 10 Nov 2020 11:52:04 GMT
• Title: Do We Need Depth in State-Of-The-Art Face Authentication?
• Authors: Amir Livne, Alex Bronstein, Ron Kimmel, Ziv Aviv, Shahaf Grofit
• Abstract summary: We introduce a novel method that learns to recognize faces from stereo camera systems without the need to explicitly compute the facial surface or depth map. The raw face stereo images along with the location in the image from which the face is extracted allow the proposed CNN to improve the recognition task. We demonstrate that the suggested method outperforms both single-image and explicit depth based methods on large-scale benchmarks.
• Score: 8.755493949976492
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Some face recognition methods are designed to utilize geometric information extracted from depth sensors to overcome the weaknesses of single-image based recognition technologies. However, the accurate acquisition of the depth profile is an expensive and challenging process. Here, we introduce a novel method that learns to recognize faces from stereo camera systems without the need to explicitly compute the facial surface or depth map. The raw face stereo images along with the location in the image from which the face is extracted allow the proposed CNN to improve the recognition task while avoiding the need to explicitly handle the geometric structure of the face. This way, we keep the simplicity and cost efficiency of identity authentication from a single image, while enjoying the benefits of geometric data without explicitly reconstructing it. We demonstrate that the suggested method outperforms both existing single-image and explicit depth based methods on large-scale benchmarks, and even capable of recognize spoofing attacks. We also provide an ablation study that shows that the suggested method uses the face locations in the left and right images to encode informative features that improve the overall performance.

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