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Augmented EMTCNN: A Fast and Accurate Facial Landmark Detection Network

1
School of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea
2
Department of Software, Sejong University, Seoul 05006, Korea
*
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in Proceedings of the 2019 IEEE International Conference on Big Data and Smart Computing (BigComp), Kyoto, Japan, 27 February–2 March 2019.
Appl. Sci. 2020, 10(7), 2253; https://doi.org/10.3390/app10072253
Received: 20 February 2020 / Revised: 20 March 2020 / Accepted: 24 March 2020 / Published: 26 March 2020
(This article belongs to the Special Issue New Trends in Image Processing)
Facial landmarks represent prominent feature points on the face that can be used as anchor points in many face-related tasks. So far, a lot of research has been done with the aim of achieving efficient extraction of landmarks from facial images. Employing a large number of feature points for landmark detection and tracking usually requires excessive processing time. On the contrary, relying on too few feature points cannot accurately represent diverse landmark properties, such as shape. To extract the 68 most popular facial landmark points efficiently, in our previous study, we proposed a model called EMTCNN that extended the multi-task cascaded convolutional neural network for real-time face landmark detection. To improve the detection accuracy, in this study, we augment the EMTCNN model by using two convolution techniques—dilated convolution and CoordConv. The former makes it possible to increase the filter size without a significant increase in computation time. The latter enables the spatial coordinate information of landmarks to be reflected in the model. We demonstrate that our model can improve the detection accuracy while maintaining the processing speed. View Full-Text
Keywords: facial landmark extraction; convolutional neural networks; cascaded structure; face detection facial landmark extraction; convolutional neural networks; cascaded structure; face detection
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Kim, H.-W.; Kim, H.-J.; Rho, S.; Hwang, E. Augmented EMTCNN: A Fast and Accurate Facial Landmark Detection Network. Appl. Sci. 2020, 10, 2253.

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