Title
Face Alignment Assisted by Head Pose Estimation
Abstract
In this paper we propose a supervised initialization scheme for cascaded face alignment based on explicit head pose estimation. We first investigate the failure cases of most state of the art face alignment approaches and observe that these failures often share one common global property, i.e. the head pose variation is usually large. Inspired by this, we propose a deep convolutional network model for reliable and accurate head pose estimation. Instead of using a mean face shape, or randomly selected shapes for cascaded face alignment initialisation, we propose two schemes for generating initialisation: the first one relies on projecting a mean 3D face shape (represented by 3D facial landmarks) onto 2D image under the estimated head pose; the second one searches nearest neighbour shapes from the training set according to head pose distance. By doing so, the initialisation gets closer to the actual shape, which enhances the possibility of convergence and in turn improves the face alignment performance. We demonstrate the proposed method on the benchmark 300W dataset and show very competitive performance in both head pose estimation and face alignment.
Year
DOI
Venue
2015
10.5244/C.29.130
BMVC
Field
DocType
Volume
Convergence (routing),Nearest neighbour,Computer science,Pose,Artificial intelligence,Articulated body pose estimation,Training set,Computer vision,Pattern recognition,3D pose estimation,Initialization,Machine learning,Network model
Journal
abs/1507.03148
Citations 
PageRank 
References 
19
0.68
16
Authors
6
Name
Order
Citations
PageRank
Heng Yang1827.10
wenxuan mou2554.48
yichi zhang3190.68
Ioannis Patras41960123.15
Hatice Gunes5153987.43
Peter Robinson630833.36