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We present a robust method for estimating the facial pose and shape information from a densely annotated facial image. The method relies on Convolutional Point-set Representation (CPR), a carefully designed matrix representation to…

Computer Vision and Pattern Recognition · Computer Science 2018-04-04 Yuhang Wu , Le Anh Vu Ha , Xiang Xu , Ioannis A. Kakadiaris

Facial expressions are one of the most powerful ways for depicting specific patterns in human behavior and describing human emotional state. Despite the impressive advances of affective computing over the last decade, automatic video-based…

Computer Vision and Pattern Recognition · Computer Science 2021-01-18 Thomas Teixeira , Eric Granger , Alessandro Lameiras Koerich

Convolutional neural networks (CNNs) have been widely used in the computer vision community, significantly improving the state-of-the-art. But learning good features often is computationally expensive in machine learning settings and is…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Janis Mohr , Jörg Frochte

While there has been a success in 2D human pose estimation with convolutional neural networks (CNNs), 3D human pose estimation has not been thoroughly studied. In this paper, we tackle the 3D human pose estimation task with end-to-end…

Computer Vision and Pattern Recognition · Computer Science 2016-09-09 Sungheon Park , Jihye Hwang , Nojun Kwak

Facial alignment involves finding a set of landmark points on an image with a known semantic meaning. However, this semantic meaning of landmark points is often lost in 2D approaches where landmarks are either moved to visible boundaries or…

Computer Vision and Pattern Recognition · Computer Science 2017-09-11 Chandrasekhar Bhagavatula , Chenchen Zhu , Khoa Luu , Marios Savvides

Monocular 3D human pose estimation technologies have the potential to greatly increase the availability of human movement data. The best-performing models for single-image 2D-3D lifting use graph convolutional networks (GCNs) that typically…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Sebastian Lutz , Richard Blythman , Koustav Ghosal , Matthew Moynihan , Ciaran Simms , Aljosa Smolic

Facial Key Points (FKPs) Detection is an important and challenging problem in the fields of computer vision and machine learning. It involves predicting the co-ordinates of the FKPs, e.g. nose tip, center of eyes, etc, for a given face. In…

Computer Vision and Pattern Recognition · Computer Science 2017-10-06 Naimish Agarwal , Artus Krohn-Grimberghe , Ranjana Vyas

Keypoint detection plays an important role in a wide range of applications. However, predicting keypoints of small objects such as human hands is a challenging problem. Recent works fuse feature maps of deep Convolutional Neural Networks…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Renjie Li , Son Tran , Saurabh Garg , Katherine Lawler , Jane Alty , Quan Bai

In this paper, we propose a novel multi-level aggregation network to regress the coordinates of the vertices of a 3D face from a single 2D image in an end-to-end manner. This is achieved by seamlessly combining standard convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2022-03-10 Yanda Meng , Xu Chen , Dongxu Gao , Yitian Zhao , Xiaoyun Yang , Yihong Qiao , Xiaowei Huang , Yalin Zheng

In this work, we propose a novel Convolutional Neural Network (CNN) architecture for the joint detection and matching of feature points in images acquired by different sensors using a single forward pass. The resulting feature detector is…

Computer Vision and Pattern Recognition · Computer Science 2021-06-17 Elad Ben Baruch , Yosi Keller

Deeply learned representations are the state-of-the-art descriptors for face recognition methods. These representations encode latent features that are difficult to explain, compromising the confidence and interpretability of their…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Matheus Alves Diniz , William Robson Schwartz

Local feature extraction is a standard approach in computer vision for tackling important tasks such as image matching and retrieval. The core assumption of most methods is that images undergo affine transformations, disregarding more…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Guilherme Potje , Felipe Cadar , Andre Araujo , Renato Martins , Erickson R. Nascimento

In this paper, we share our experience in designing a convolutional network-based face detector that could handle faces of an extremely wide range of scales. We show that faces with different scales can be modeled through a specialized set…

Computer Vision and Pattern Recognition · Computer Science 2017-06-12 Shuo Yang , Yuanjun Xiong , Chen Change Loy , Xiaoou Tang

For human pose estimation in monocular images, joint occlusions and overlapping upon human bodies often result in deviated pose predictions. Under these circumstances, biologically implausible pose predictions may be produced. In contrast,…

Computer Vision and Pattern Recognition · Computer Science 2017-05-03 Yu Chen , Chunhua Shen , Xiu-Shen Wei , Lingqiao Liu , Jian Yang

Image search can be tackled using deep features from pre-trained Convolutional Neural Networks (CNN). The feature map from the last convolutional layer of a CNN encodes descriptive information from which a discriminative global descriptor…

Computer Vision and Pattern Recognition · Computer Science 2021-06-11 J. I. Forcen , Miguel Pagola , Edurne Barrenechea , Humberto Bustince

In this work, we present a novel data-driven method for robust 6DoF object pose estimation from a single RGBD image. Unlike previous methods that directly regressing pose parameters, we tackle this challenging task with a keypoint-based…

Computer Vision and Pattern Recognition · Computer Science 2020-03-25 Yisheng He , Wei Sun , Haibin Huang , Jianran Liu , Haoqiang Fan , Jian Sun

In this paper, we present a deep learning based image feature extraction method designed specifically for face images. To train the feature extraction model, we construct a large scale photo-realistic face image dataset with ground-truth…

Computer Vision and Pattern Recognition · Computer Science 2018-03-13 Boyi Jiang , Juyong Zhang , Bailin Deng , Yudong Guo , Ligang Liu

Landmark/pose estimation in single monocular images have received much effort in computer vision due to its important applications. It remains a challenging task when input images severe occlusions caused by, e.g., adverse camera views.…

Computer Vision and Pattern Recognition · Computer Science 2019-02-26 Yu Chen , Chunhua Shen , Hao Chen , Xiu-Shen Wei , Lingqiao Liu , Jian Yang

Deep Neural Networks (DNNs) have shown to outperform traditional methods in various visual recognition tasks including Facial Expression Recognition (FER). In spite of efforts made to improve the accuracy of FER systems using DNN, existing…

Computer Vision and Pattern Recognition · Computer Science 2020-04-17 Behzad Hasani , Mohammad H. Mahoor

We present a simple and general framework for feature learning from point clouds. The key to the success of CNNs is the convolution operator that is capable of leveraging spatially-local correlation in data represented densely in grids…

Computer Vision and Pattern Recognition · Computer Science 2018-11-06 Yangyan Li , Rui Bu , Mingchao Sun , Wei Wu , Xinhan Di , Baoquan Chen