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Towards Real-Time Head Pose Estimation: Exploring Parameter-Reduced Residual Networks on In-the-wild Datasets

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Advances and Trends in Artificial Intelligence. From Theory to Practice (IEA/AIE 2019)

Abstract

Head poses are a key component of human bodily communication and thus a decisive element of human-computer interaction. Real-time head pose estimation is crucial in the context of human-robot interaction or driver assistance systems. The most promising approaches for head pose estimation are based on Convolutional Neural Networks (CNNs). However, CNN models are often too complex to achieve real-time performance. To face this challenge, we explore a popular subgroup of CNNs, the Residual Networks (ResNets) and modify them in order to reduce their number of parameters. The ResNets are modified for different image sizes including low-resolution images and combined with a varying number of layers. They are trained on in-the-wild datasets to ensure real-world applicability. As a result, we demonstrate that the performance of the ResNets can be maintained while reducing the number of parameters. The modified ResNets achieve state-of-the-art accuracy and provide fast inference for real-time applicability.

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Notes

  1. 1.

    http://image-net.org/challenges/LSVRC/2015/, accessed 14.12.2018.

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    http://cocodataset.org/#detections-challenge2015, accessed 14.12.2018.

  3. 3.

    https://www.tugraz.at/institute/icg/research/team-bischof/lrs/downloads/aflw/, accessed 26.03.2019.

  4. 4.

    https://github.com/natanielruiz/deep-head-pose, accessed 09.01.2019.

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Rieger, I., Hauenstein, T., Hettenkofer, S., Garbas, JU. (2019). Towards Real-Time Head Pose Estimation: Exploring Parameter-Reduced Residual Networks on In-the-wild Datasets. In: Wotawa, F., Friedrich, G., Pill, I., Koitz-Hristov, R., Ali, M. (eds) Advances and Trends in Artificial Intelligence. From Theory to Practice. IEA/AIE 2019. Lecture Notes in Computer Science(), vol 11606. Springer, Cham. https://doi.org/10.1007/978-3-030-22999-3_12

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  • DOI: https://doi.org/10.1007/978-3-030-22999-3_12

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