Human Recognition Using Face in Computed Tomography
- URL: http://arxiv.org/abs/2005.14238v1
- Date: Thu, 28 May 2020 18:59:59 GMT
- Title: Human Recognition Using Face in Computed Tomography
- Authors: Jiuwen Zhu, Hu Han, and S. Kevin Zhou
- Abstract summary: We propose an automatic processing pipeline that first detects facial landmarks in 3D for ROI extraction and then generates aligned 2D depth images, which are used for automatic recognition.
Our method achieves a 1:56 identification accuracy of 92.53% and a 1:1 verification accuracy of 96.12%, outperforming other competing approaches.
- Score: 26.435782518817295
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: With the mushrooming use of computed tomography (CT) images in clinical
decision making, management of CT data becomes increasingly difficult. From the
patient identification perspective, using the standard DICOM tag to track
patient information is challenged by issues such as misspelling, lost file,
site variation, etc. In this paper, we explore the feasibility of leveraging
the faces in 3D CT images as biometric features. Specifically, we propose an
automatic processing pipeline that first detects facial landmarks in 3D for ROI
extraction and then generates aligned 2D depth images, which are used for
automatic recognition. To boost the recognition performance, we employ transfer
learning to reduce the data sparsity issue and to introduce a group sampling
strategy to increase inter-class discrimination when training the recognition
network. Our proposed method is capable of capturing underlying identity
characteristics in medical images while reducing memory consumption. To test
its effectiveness, we curate 600 3D CT images of 280 patients from multiple
sources for performance evaluation. Experimental results demonstrate that our
method achieves a 1:56 identification accuracy of 92.53% and a 1:1 verification
accuracy of 96.12%, outperforming other competing approaches.
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