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We present DAD-3DHeads, a dense and diverse large-scale dataset, and a robust model for 3D Dense Head Alignment in the wild. It contains annotations of over 3.5K landmarks that accurately represent 3D head shape compared to the ground-truth…

计算机视觉与模式识别 · 计算机科学 2025-06-05 Tetiana Martyniuk , Orest Kupyn , Yana Kurliak , Igor Krashenyi , Jiři Matas , Viktoriia Sharmanska

Localization of anatomical landmarks is essential for clinical diagnosis, treatment planning, and research. In this paper, we propose a novel deep network, named feature aggregation and refinement network (FARNet), for the automatic…

计算机视觉与模式识别 · 计算机科学 2021-11-02 Yueyuan Ao , Hong Wu

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…

计算机视觉与模式识别 · 计算机科学 2018-10-25 Zhen-Hua Feng , Josef Kittler , Muhammad Awais , Patrik Huber , Xiao-Jun Wu

We introduce Invertible Dense Networks (i-DenseNets), a more parameter efficient extension of Residual Flows. The method relies on an analysis of the Lipschitz continuity of the concatenation in DenseNets, where we enforce invertibility of…

机器学习 · 统计学 2021-10-26 Yura Perugachi-Diaz , Jakub M. Tomczak , Sandjai Bhulai

Registering a 3D facial model to a 2D image under occlusion is difficult. First, not all of the detected facial landmarks are accurate under occlusions. Second, the number of reliable landmarks may not be enough to constrain the problem. We…

计算机视觉与模式识别 · 计算机科学 2018-04-04 Yuhang Wu , Ioannis A. Kakadiaris

Cascaded Regression (CR) based methods have been proposed to solve facial landmarks detection problem, which learn a series of descent directions by multiple cascaded regressors separately trained in coarse and fine stages. They outperform…

计算机视觉与模式识别 · 计算机科学 2018-03-20 Tao Hu , Honggang Qi , Jizheng Xu , Qingming Huang

The field of animal affective computing is rapidly emerging, and analysis of facial expressions is a crucial aspect. One of the most significant challenges that researchers in the field currently face is the scarcity of high-quality,…

计算机视觉与模式识别 · 计算机科学 2024-03-06 George Martvel , Ilan Shimshoni , Anna Zamansky

Plenty of effective methods have been proposed for face recognition during the past decade. Although these methods differ essentially in many aspects, a common practice of them is to specifically align the facial area based on the prior…

计算机视觉与模式识别 · 计算机科学 2017-08-02 Yuanyi Zhong , Jiansheng Chen , Bo Huang

Extreme head postures pose a common challenge across a spectrum of facial analysis tasks, including face detection, facial landmark detection (FLD), and head pose estimation (HPE). These tasks are interdependent, where accurate FLD relies…

计算机视觉与模式识别 · 计算机科学 2023-09-22 Qingtian Wu , Liming Zhang

Despite excellent progress has been made, the performance of deep learning based algorithms still heavily rely on specific datasets, which are difficult to extend due to labor-intensive labeling. Moreover, because of the advancement of new…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Zhen Wei , Bingkun Liu , Weinong Wang , Yu-Wing Tai

Facial landmark detection aims to localize the anatomically defined points of human faces. In this paper, we study facial landmark detection from partially labeled facial images. A typical approach is to (1) train a detector on the labeled…

计算机视觉与模式识别 · 计算机科学 2019-08-14 Xuanyi Dong , Yi Yang

Deep learning technique has dramatically boosted the performance of face alignment algorithms. However, due to large variability and lack of samples, the alignment problem in unconstrained situations, \emph{e.g}\onedot large head poses,…

计算机视觉与模式识别 · 计算机科学 2020-06-26 Xiehe Huang , Weihong Deng , Haifeng Shen , Xiubao Zhang , Jieping Ye

We present a method for highly efficient landmark detection that combines deep convolutional neural networks with well established model-based fitting algorithms. Motivated by established model-based fitting methods such as active shapes,…

计算机视觉与模式识别 · 计算机科学 2019-02-12 Marcin Kopaczka , Justus Schock , Dorit Merhof

Deep learning techniques for anatomical landmark localization (ALL) have shown great success, but their reliance on large annotated datasets remains a problem due to the tedious and costly nature of medical data acquisition and annotation.…

计算机视觉与模式识别 · 计算机科学 2024-10-18 Arnela Hadzic , Lea Bogensperger , Simon Johannes Joham , Martin Urschler

Densely Connected Convolutional Networks (DenseNets) have been shown to achieve state-of-the-art results on image classification tasks while using fewer parameters and computation than competing methods. Since each layer in this…

计算机视觉与模式识别 · 计算机科学 2018-06-07 Andy Hess

A key recent advance in face recognition models a test face image as a sparse linear combination of a set of training face images. The resulting sparse representations have been shown to possess robustness against a variety of distortions…

计算机视觉与模式识别 · 计算机科学 2011-11-09 Yi Chen , Umamahesh Srinivas , Thong T. Do , Vishal Monga , Trac D. Tran

Keypoint detection is the foundation of many computer vision tasks, including image registration, structure-from-motion, 3D reconstruction, visual odometry, and SLAM. Traditional detectors (SIFT, ORB, BRISK, FAST, etc.) and learning-based…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Shaharyar Ahmed Khan Tareen , Filza Khan Tareen , Xiaojing Yuan

Over the past decade, generative models have achieved significant success in enhancement fundus images.However, the evaluation of these models still presents a considerable challenge. A comprehensive evaluation benchmark for fundus image…

图像与视频处理 · 电气工程与系统科学 2025-02-21 Wenhui Zhu , Xuanzhao Dong , Xin Li , Yujian Xiong , Xiwen Chen , Peijie Qiu , Vamsi Krishna Vasa , Zhangsihao Yang , Yi Su , Oana Dumitrascu , Yalin Wang

Fine-grained image classification, the task of distinguishing between visually similar subcategories within a broader category (e.g., bird species, car models, flower types), is a challenging computer vision problem. Traditional approaches…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Dmitry Demidov , Zaigham Zaheer , Omkar Thawakar , Salman Khan , Fahad Shahbaz Khan

Instance segmentation for low-light imagery remains largely unexplored due to the challenges imposed by such conditions, for example shot noise due to low photon count, color distortions and reduced contrast. In this paper, we propose an…

计算机视觉与模式识别 · 计算机科学 2025-04-11 Joanne Lin , Nantheera Anantrasirichai , David Bull