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Image retrieval is a fundamental problem in computer vision. This paper presents our 3rd place detailed solution to the Google Landmark Retrieval 2020 challenge. We focus on the exploration of data cleaning and models with metric learning.…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Ke Mei , Lei li , Jinchang Xu , Yanhua Cheng , Yugeng Lin

Current face recognition tasks are usually carried out on high-quality face images, but in reality, most face images are captured under unconstrained or poor conditions, e.g., by video surveillance. Existing methods are featured by learning…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Peiying Li , Shikui Tu , Lei Xu

TThe goal of our work is to discover dominant objects in a very general setting where only a single unlabeled image is given. This is far more challenge than typical co-localization or weakly-supervised localization tasks. To tackle this…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Runsheng Zhang , Yaping Huang , Mengyang Pu , Jian Zhang , Qingji Guan , Qi Zou , Haibin Ling

In this paper, we examine 3 important issues in the practical use of state-of-the-art facial landmark detectors and show how a combination of specific architectural modifications can directly improve their accuracy and temporal stability.…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Prashanth Chandran , Gaspard Zoss , Paulo Gotardo , Derek Bradley

Vision based localization is a popular approach to carry out manoeuvres particularly in GPS-restricted indoor environments, because vision can complement other activities performed by the robot. The objective is to estimate the current…

Systems and Control · Electrical Eng. & Systems 2019-12-09 Prashant V. Patil , Pranav Thakkar , Leena Vachhani

Accurate face detection and facial landmark localization are crucial to any face recognition system. We present a series of three single-stage RCNNs with different sized backbones (MobileNetV2-25, MobileNetV2-100, and ResNet101) and a…

Computer Vision and Pattern Recognition · Computer Science 2019-12-19 Samuel W. F. Earp , Pavit Noinongyao , Justin A. Cairns , Ankush Ganguly

We present a new loss function, namely Wing loss, for robust facial landmark localisation with Convolutional Neural Networks (CNNs). We first compare and analyse different loss functions including L2, L1 and smooth L1. The analysis of these…

Computer Vision and Pattern Recognition · Computer Science 2018-10-25 Zhen-Hua Feng , Josef Kittler , Muhammad Awais , Patrik Huber , Xiao-Jun Wu

Although facial landmark localization (FLL) approaches are becoming increasingly accurate for characterizing facial regions, one question remains unanswered: what is the impact of these approaches on subsequent related tasks? In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2021-11-12 Romain Belmonte , Benjamin Allaert , Pierre Tirilly , Ioan Marius Bilasco , Chaabane Djeraba , Nicu Sebe

Importance: Machine learning (ML) approaches to facial landmark localization carry great clinical potential for quantitative assessment of facial function as they enable high-throughput automated quantification of relevant facial metrics…

Computer Vision and Pattern Recognition · Computer Science 2020-03-19 Diego L. Guarin , Yana Yunusova , Babak Taati , Joseph R Dusseldorp , Suresh Mohan , Joana Tavares , Martinus M. van Veen , Emily Fortier , Tessa A. Hadlock , Nate Jowett

The recent performance of facial landmark detection has been significantly improved by using deep Convolutional Neural Networks (CNNs), especially the Heatmap Regression Models (HRMs). Although their performance on common benchmark datasets…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Yongzhe Yan , Stefan Duffner , Priyanka Phutane , Anthony Berthelier , Christophe Blanc , Christophe Garcia , Thierry Chateau

Localization of the craniofacial landmarks from lateral cephalograms is a fundamental task in cephalometric analysis. The automation of the corresponding tasks has thus been the subject of intense research over the past decades. In this…

The deep learning (DL) technology has been widely used for image classification in many scenarios, e.g., face recognition and suspect tracking. Such a highly commercialized application has given rise to intellectual property protection of…

Cryptography and Security · Computer Science 2022-09-07 Guowen Xu , Xingshuo Han , Anguo Zhang , Tianwei Zhang

Despite the great success achieved by deep learning methods in face recognition, severe performance drops are observed for large pose variations in unconstrained environments (e.g., in cases of surveillance and photo-tagging). To address…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Qiang Meng , Xiaqing Xu , Xiaobo Wang , Yang Qian , Yunxiao Qin , Zezheng Wang , Chenxu Zhao , Feng Zhou , Zhen Lei

This paper investigates how far a very deep neural network is from attaining close to saturating performance on existing 2D and 3D face alignment datasets. To this end, we make the following 5 contributions: (a) we construct, for the first…

Computer Vision and Pattern Recognition · Computer Science 2018-08-28 Adrian Bulat , Georgios Tzimiropoulos

The majority of existing LiDAR odometry solutions are based on simple geometric features such as points, lines or planes which cannot fully reflect the characteristics of surrounding environments. In this study, we propose a novel LiDAR…

Robotics · Computer Science 2023-12-29 Feiya Li , Chunyun Fu , Dongye Sun

Thermal face image analysis is favorable for certain circumstances. For example, illumination-sensitive applications, like nighttime surveillance; and privacy-preserving demanded access control. However, the inadequate study on thermal face…

Computer Vision and Pattern Recognition · Computer Science 2020-06-11 Jin Keong , Xingbo Dong , Zhe Jin , Khawla Mallat , Jean-Luc Dugelay

Facial landmark detection is a very fundamental and significant vision task with many important applications. In practice, facial landmark detection can be affected by a lot of natural degradations. One of the most common and important…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Lan Fu , Qing Guo , Felix Juefei-Xu , Hongkai Yu , Wei Feng , Yang Liu , Song Wang

As the quality of few shot facial animation from landmarks increases, new applications become possible, such as ultra low bandwidth video chat compression with a high degree of realism. However, there are some important challenges to tackle…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Maxime Oquab , Daniel Haziza , Ludovic Schwartz , Tao Xu , Katayoun Zand , Rui Wang , Peirong Liu , Camille Couprie

While facial biometrics has been widely used for identification purpose, it has recently been researched as medical biometrics for a range of diseases. In this chapter, we investigate the facial landmark detection for atypical 3D facial…

Machine Learning · Computer Science 2019-09-15 Gary Storey , Ahmed Bouridane , Richard Jiang , Chang-tsun Li

The domain of computer vision has experienced significant advancements in facial-landmark detection, becoming increasingly essential across various applications such as augmented reality, facial recognition, and emotion analysis. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Zong-Wei Hong , Yu-Chen Lin
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