Pose-Robust Face Alignment with Adaptive Supervised Descent Method

Face alignment is a key component in facial processing. It is a challenging task because human facial images in real-world usually contain large variations due to the differences in pose, illumination, etc. Shape init-ialization and feature extraction are crucial in face landmark alignment. This pap...

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Main Author: ZHAO Hui, JING Liping, YU Jian
Format: Article
Language:zho
Published: Journal of Computer Engineering and Applications Beijing Co., Ltd., Science Press 2020-04-01
Series:Jisuanji kexue yu tansuo
Subjects:
Online Access:http://fcst.ceaj.org/CN/abstract/abstract2168.shtml
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author ZHAO Hui, JING Liping, YU Jian
author_facet ZHAO Hui, JING Liping, YU Jian
author_sort ZHAO Hui, JING Liping, YU Jian
collection DOAJ
description Face alignment is a key component in facial processing. It is a challenging task because human facial images in real-world usually contain large variations due to the differences in pose, illumination, etc. Shape init-ialization and feature extraction are crucial in face landmark alignment. This paper proposes a pose-robust face alignment model based on adaptive supervised descent method (SDM). Firstly, in order to reduce the influence of pose differences for face alignment, this paper uses clustering algorithm to cluster the face images into three categories (frontal faces, left faces, right faces) according to pose. Thus, the pose in each cluster is more compact. Secondly, face alignment can be taken as a coarse-to-fine supervised learning process with multi-stage. Therefore, the adaptive block size of feature extraction (from big to small) is used to get discriminative features. Based on the above two strategies, within each cluster, a better initial shape is given and the discriminant regression model is trained for facial landmark localization via adaptive SDM. A series of experiments have been conducted on benchmark datasets LFPW, HELEN and 300W. The experimental results show that this method makes facial landmark localization accurately in large pose images, and demonstrate the superiority of the proposed method by comparing with existing methods.
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spelling doaj.art-b19f64cf441649bd90acc958100c54422022-12-21T23:33:31ZzhoJournal of Computer Engineering and Applications Beijing Co., Ltd., Science PressJisuanji kexue yu tansuo1673-94182020-04-0114464965610.3778/j.issn.1673-9418.1905087Pose-Robust Face Alignment with Adaptive Supervised Descent MethodZHAO Hui, JING Liping, YU Jian01. College of Computer and Information Technology, Beijing Jiaotong University, Beijing 100044, China 2. Beijing Key Lab of Traffic Data Analysis and Mining (Beijing Jiaotong University), Beijing 100044, ChinaFace alignment is a key component in facial processing. It is a challenging task because human facial images in real-world usually contain large variations due to the differences in pose, illumination, etc. Shape init-ialization and feature extraction are crucial in face landmark alignment. This paper proposes a pose-robust face alignment model based on adaptive supervised descent method (SDM). Firstly, in order to reduce the influence of pose differences for face alignment, this paper uses clustering algorithm to cluster the face images into three categories (frontal faces, left faces, right faces) according to pose. Thus, the pose in each cluster is more compact. Secondly, face alignment can be taken as a coarse-to-fine supervised learning process with multi-stage. Therefore, the adaptive block size of feature extraction (from big to small) is used to get discriminative features. Based on the above two strategies, within each cluster, a better initial shape is given and the discriminant regression model is trained for facial landmark localization via adaptive SDM. A series of experiments have been conducted on benchmark datasets LFPW, HELEN and 300W. The experimental results show that this method makes facial landmark localization accurately in large pose images, and demonstrate the superiority of the proposed method by comparing with existing methods.http://fcst.ceaj.org/CN/abstract/abstract2168.shtmlface alignmentfacial landmark localizationsupervised descent method (sdm) modelpose-robustadaptive feature block size
spellingShingle ZHAO Hui, JING Liping, YU Jian
Pose-Robust Face Alignment with Adaptive Supervised Descent Method
Jisuanji kexue yu tansuo
face alignment
facial landmark localization
supervised descent method (sdm) model
pose-robust
adaptive feature block size
title Pose-Robust Face Alignment with Adaptive Supervised Descent Method
title_full Pose-Robust Face Alignment with Adaptive Supervised Descent Method
title_fullStr Pose-Robust Face Alignment with Adaptive Supervised Descent Method
title_full_unstemmed Pose-Robust Face Alignment with Adaptive Supervised Descent Method
title_short Pose-Robust Face Alignment with Adaptive Supervised Descent Method
title_sort pose robust face alignment with adaptive supervised descent method
topic face alignment
facial landmark localization
supervised descent method (sdm) model
pose-robust
adaptive feature block size
url http://fcst.ceaj.org/CN/abstract/abstract2168.shtml
work_keys_str_mv AT zhaohuijinglipingyujian poserobustfacealignmentwithadaptivesuperviseddescentmethod