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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1109/TIP.2021.3054476
|2 doi
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|a eng
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|a Sepas-Moghaddam, Alireza
|e verfasserin
|4 aut
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| 245 |
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|a CapsField
|b Light Field-Based Face and Expression Recognition in the Wild Using Capsule Routing
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|c 2021
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|a Text
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|a Date Completed 23.07.2021
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|a Date Revised 23.07.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Light field (LF) cameras provide rich spatio-angular visual representations by sensing the visual scene from multiple perspectives and have recently emerged as a promising technology to boost the performance of human-machine systems such as biometrics and affective computing. Despite the significant success of LF representation for constrained facial image analysis, this technology has never been used for face and expression recognition in the wild. In this context, this paper proposes a new deep face and expression recognition solution, called CapsField, based on a convolutional neural network and an additional capsule network that utilizes dynamic routing to learn hierarchical relations between capsules. CapsField extracts the spatial features from facial images and learns the angular part-whole relations for a selected set of 2D sub-aperture images rendered from each LF image. To analyze the performance of the proposed solution in the wild, the first in the wild LF face dataset, along with a new complementary constrained face dataset captured from the same subjects recorded earlier have been captured and are made available. A subset of the in the wild dataset contains facial images with different expressions, annotated for usage in the context of face expression recognition tests. An extensive performance assessment study using the new datasets has been conducted for the proposed and relevant prior solutions, showing that the CapsField proposed solution achieves superior performance for both face and expression recognition tasks when compared to the state-of-the-art
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|a Journal Article
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|a Etemad, Ali
|e verfasserin
|4 aut
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| 700 |
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|a Pereira, Fernando
|e verfasserin
|4 aut
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|a Correia, Paulo Lobato
|e verfasserin
|4 aut
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|i Enthalten in
|t IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
|d 1992
|g 30(2021) vom: 01., Seite 2627-2642
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|g volume:30
|g year:2021
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|u http://dx.doi.org/10.1109/TIP.2021.3054476
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