Title
Towards Real-Time Facial Landmark Detection in Depth Data Using Auxiliary Information.
Abstract
Modern facial motion capture systems employ a two-pronged approach for capturing and rendering facial motion. Visual data (2D) is used for tracking the facial features and predicting facial expression, whereas Depth (3D) data is used to build a series of expressions on 3D face models. An issue with modern research approaches is the use of a single data stream that provides little indication of the 3D facial structure. We compare and analyse the performance of Convolutional Neural Networks (CNN) using visual, Depth and merged data to identify facial features in real-time using a Depth sensor. First, we review the facial landmarking algorithms and its datasets for Depth data. We address the limitation of the current datasets by introducing the Kinect One Expression Dataset (KOED). Then, we propose the use of CNNs for the single data stream and merged data streams for facial landmark detection. We contribute to existing work by performing a full evaluation on which streams are the most effective for the field of facial landmarking. Furthermore, we improve upon the existing work by extending neural networks to predict into 3D landmarks in real-time with additional observations on the impact of using 2D landmarks as auxiliary information. We evaluate the performance by using Mean Square Error (MSE) and Mean Average Error (MAE). We observe that the single data stream predicts accurate facial landmarks on Depth data when auxiliary information is used to train the network. The codes and dataset used in this paper will be made available.
Year
DOI
Venue
2018
10.3390/sym10060230
SYMMETRY-BASEL
Keywords
Field
DocType
deep learning,RGB,depth,facial landmarking,merging networks
Data stream mining,Pattern recognition,Data stream,Convolutional neural network,Mathematical analysis,Facial expression,Artificial intelligence,Deep learning,Artificial neural network,Rendering (computer graphics),Facial motion capture,Mathematics
Journal
Volume
Issue
ISSN
10
6
2073-8994
Citations 
PageRank 
References 
0
0.34
18
Authors
4
Name
Order
Citations
PageRank
Connah Kendrick121.04
Kevin Tan2432.24
Kevin N. Walker3768.46
Moi Hoon Yap419027.82