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Related papers: Impact of Face Alignment on Face Image Quality

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The variation of pose, illumination and expression makes face recognition still a challenging problem. As a pre-processing in holistic approaches, faces are usually aligned by eyes. The proposed method tries to perform a pixel alignment…

Computer Vision and Pattern Recognition · Computer Science 2018-08-01 Hoda Mohammadzade , Amirhossein Sayyafan , Benyamin Ghojogh

In video based face recognition, face images are typically captured over multiple frames in uncontrolled conditions, where head pose, illumination, shadowing, motion blur and focus change over the sequence. Additionally, inaccuracies in…

Computer Vision and Pattern Recognition · Computer Science 2014-03-17 Yongkang Wong , Shaokang Chen , Sandra Mau , Conrad Sanderson , Brian C. Lovell

In this paper we develop FaceQgen, a No-Reference Quality Assessment approach for face images based on a Generative Adversarial Network that generates a scalar quality measure related with the face recognition accuracy. FaceQgen does not…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Javier Hernandez-Ortega , Julian Fierrez , Ignacio Serna , Aythami Morales

Accurate facial expression analysis is an essential step in various clinical applications that involve physical and mental health assessments of older adults (e.g. diagnosis of pain or depression). Although remarkable progress has been…

Computer Vision and Pattern Recognition · Computer Science 2019-05-21 Azin Asgarian , Shun Zhao , Ahmed B. Ashraf , M. Erin Browne , Kenneth M. Prkachin , Alex Mihailidis , Thomas Hadjistavropoulos , Babak Taati

Facial landmark detection plays an important role for the similarity analysis in artworks to compare portraits of the same or similar artists. With facial landmarks, portraits of different genres, such as paintings and prints, can be…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Aline Sindel , Andreas Maier , Vincent Christlein

We present a novel boundary-aware face alignment algorithm by utilising boundary lines as the geometric structure of a human face to help facial landmark localisation. Unlike the conventional heatmap based method and regression based…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Wayne Wu , Chen Qian , Shuo Yang , Quan Wang , Yici Cai , Qiang Zhou

In this dissertation, we present a generative model to capture the relation between facial image quality features (like pose, illumination direction, etc) and face recognition performance. Such a model can be used to predict the performance…

Computer Vision and Pattern Recognition · Computer Science 2015-10-27 Abhishek Dutta

This paper proposes a data driven model to predict the performance of a face recognition system based on image quality features. We model the relationship between image quality features (e.g. pose, illumination, etc.) and recognition…

Computer Vision and Pattern Recognition · Computer Science 2015-10-27 Abhishek Dutta , Raymond Veldhuis , Luuk Spreeuwers

Facial landmark detection, or face alignment, is a fundamental task that has been extensively studied. In this paper, we investigate a new perspective of facial landmark detection and demonstrate it leads to further notable improvement.…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Shengju Qian , Keqiang Sun , Wayne Wu , Chen Qian , Jiaya Jia

Face Recognition (FR) plays a crucial role in many critical (high-stakes) applications, where errors in the recognition process can lead to serious consequences. Face Image Quality Assessment (FIQA) techniques enhance FR systems by…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Žiga Babnik , Deepak Kumar Jain , Peter Peer , Vitomir Štruc

Multi-face alignment aims to identify geometry structures of multiple faces in an image, and its performance is essential for the many practical tasks, such as face recognition, face tracking, and face animation. In this work, we present a…

Computer Vision and Pattern Recognition · Computer Science 2019-05-16 Yuxiang Wu , Zehua Cheng , Bin Huang , Yiming Chen , Xinghui Zhu , Weiyang Wang

In recent years, Face Image Quality Assessment (FIQA) has become an indispensable part of the face recognition system to guarantee the stability and reliability of recognition performance in an unconstrained scenario. For this purpose, the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Fu-Zhao Ou , Xingyu Chen , Ruixin Zhang , Yuge Huang , Shaoxin Li , Jilin Li , Yong Li , Liujuan Cao , Yuan-Gen Wang

State-of-the-art deep face recognition approaches report near perfect performance on popular benchmarks, e.g., Labeled Faces in the Wild. However, their performance deteriorates significantly when they are applied on low quality images,…

Computer Vision and Pattern Recognition · Computer Science 2019-07-26 Omid Abdollahi Aghdam , Behzad Bozorgtabar , Hazım Kemal Ekenel , Jean-Philippe Thiran

Face recognition approaches often rely on equal image resolution for verifying faces on two images. However, in practical applications, those image resolutions are usually not in the same range due to different image capture mechanisms or…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Martin Knoche , Stefan Hörmann , Gerhard Rigoll

Face Alignment is an active computer vision domain, that consists in localizing a number of facial landmarks that vary across datasets. State-of-the-art face alignment methods either consist in end-to-end regression, or in refining the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-05 Arnaud Dapogny , Kévin Bailly , Matthieu Cord

Dense facial landmark detection is one of the key elements of face processing pipeline. It is used in virtual face reenactment, emotion recognition, driver status tracking, etc. Early approaches were suitable for facial landmark detection…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Kostiantyn Khabarlak , Larysa Koriashkina

While recent face recognition (FR) systems achieve excellent results in many deployment scenarios, their performance in challenging real-world settings is still under question. For this reason, face image quality assessment (FIQA)…

Computer Vision and Pattern Recognition · Computer Science 2022-09-01 Žiga Babnik , Vitomir Štruc

We show how a simple convolutional neural network (CNN) can be trained to accurately and robustly regress 6 degrees of freedom (6DoF) 3D head pose, directly from image intensities. We further explain how this FacePoseNet (FPN) can be used…

Computer Vision and Pattern Recognition · Computer Science 2017-09-04 Fengju Chang , Anh Tuan Tran , Tal Hassner , Iacopo Masi , Ram Nevatia , Gerard Medioni

The quality of a face crop in an image is decided by many factors such as camera resolution, distance, and illumination condition. This makes the discrimination of face images with different qualities a challenging problem in realistic…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Youzhe Song , Feng Wang

Facial action unit (AU) detection and face alignment are two highly correlated tasks since facial landmarks can provide precise AU locations to facilitate the extraction of meaningful local features for AU detection. Most existing AU…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Zhiwen Shao , Zhilei Liu , Jianfei Cai , Lizhuang Ma