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The typical bottom-up human pose estimation framework includes two stages, keypoint detection and grouping. Most existing works focus on developing grouping algorithms, e.g., associative embedding, and pixel-wise keypoint regression that we…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Ke Sun , Zigang Geng , Depu Meng , Bin Xiao , Dong Liu , Zhaoxiang Zhang , Jingdong Wang

We propose PartField, a feedforward approach for learning part-based 3D features, which captures the general concept of parts and their hierarchy without relying on predefined templates or text-based names, and can be applied to open-world…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Minghua Liu , Mikaela Angelina Uy , Donglai Xiang , Hao Su , Sanja Fidler , Nicholas Sharp , Jun Gao

This paper addresses 2 challenging tasks: improving the quality of low resolution facial images and accurately locating the facial landmarks on such poor resolution images. To this end, we make the following 5 contributions: (a) we propose…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Adrian Bulat , Georgios Tzimiropoulos

Heatmap-based regression overcomes the lack of spatial and contextual information of direct coordinate regression, and has revolutionized the task of face alignment. Yet it suffers from quantization errors caused by neglecting subpixel…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Xing Lan , Qinghao Hu , Qiang Chen , Jian Xue , Jian Cheng

We propose an efficient pipeline for large-scale landmark image retrieval that addresses the diversity of the dataset through two-stage discriminative re-ranking. Our approach is based on embedding the images in a feature-space using a…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Shuhei Yokoo , Kohei Ozaki , Edgar Simo-Serra , Satoshi Iizuka

We present a joint 3D pose and focal length estimation approach for object categories in the wild. In contrast to previous methods that predict 3D poses independently of the focal length or assume a constant focal length, we explicitly…

Computer Vision and Pattern Recognition · Computer Science 2019-08-09 Alexander Grabner , Peter M. Roth , Vincent Lepetit

Facial landmark localization is a fundamental module for pose-invariant face recognition. The most common approach for facial landmark detection is cascaded regression, which is composed of two steps: feature extraction and facial shape…

Computer Vision and Pattern Recognition · Computer Science 2018-04-04 Yuhang Wu , Shishir K. Shah , Ioannis A. Kakadiaris

This paper describes the proposed methodology, data used and the results of our participation in the ChallengeTrack 2 (Expr Challenge Track) of the Affective Behavior Analysis in-the-wild (ABAW) Competition 2020. In this competition, we…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Hafiq Anas , Bacha Rehman , Wee Hong Ong

The target of 2D human pose estimation is to locate the keypoints of body parts from input 2D images. State-of-the-art methods for pose estimation usually construct pixel-wise heatmaps from keypoints as labels for learning convolution…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Kun Zhang , Rui Wu , Ping Yao , Kai Deng , Ding Li , Renbiao Liu , Chuanguang Yang , Ge Chen , Min Du , Tianyao Zheng

Face alignment, which fits a face model to an image and extracts the semantic meanings of facial pixels, has been an important topic in CV community. However, most algorithms are designed for faces in small to medium poses (below 45…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Xiangyu Zhu , Zhen Lei , Xiaoming Liu , Hailin Shi , Stan Z. Li

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…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Tetiana Martyniuk , Orest Kupyn , Yana Kurliak , Igor Krashenyi , Jiři Matas , Viktoriia Sharmanska

Despite recent advances in face recognition using deep learning, severe accuracy drops are observed for large pose variations in unconstrained environments. Learning pose-invariant features is one solution, but needs expensively labeled…

Computer Vision and Pattern Recognition · Computer Science 2017-08-21 Xi Yin , Xiang Yu , Kihyuk Sohn , Xiaoming Liu , Manmohan Chandraker

Recently, 3D face reconstruction and face alignment tasks are gradually combined into one task: 3D dense face alignment. Its goal is to reconstruct the 3D geometric structure of face with pose information. In this paper, we propose a graph…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Huawei Wei , Shuang Liang , Yichen Wei

We propose a straightforward method that simultaneously reconstructs the 3D facial structure and provides dense alignment. To achieve this, we design a 2D representation called UV position map which records the 3D shape of a complete face…

Computer Vision and Pattern Recognition · Computer Science 2018-03-22 Yao Feng , Fan Wu , Xiaohu Shao , Yanfeng Wang , Xi Zhou

We investigate the problem of estimating the 3D shape of an object, given a set of 2D landmarks in a single image. To alleviate the reconstruction ambiguity, a widely-used approach is to confine the unknown 3D shape within a shape space…

Computer Vision and Pattern Recognition · Computer Science 2015-06-03 Xiaowei Zhou , Spyridon Leonardos , Xiaoyan Hu , Kostas Daniilidis

We introduce a novel method for robust and accurate 3D object pose estimation from a single color image under large occlusions. Following recent approaches, we first predict the 2D projections of 3D points related to the target object and…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Markus Oberweger , Mahdi Rad , Vincent Lepetit

In this paper, we propose a novel face alignment method that trains deep convolutional network from coarse to fine. It divides given landmarks into principal subset and elaborate subset. We firstly keep a large weight for principal subset…

Computer Vision and Pattern Recognition · Computer Science 2016-08-02 Zhiwen Shao , Shouhong Ding , Yiru Zhao , Qinchuan Zhang , Lizhuang Ma

This paper is on human pose estimation using Convolutional Neural Networks. Our main contribution is a CNN cascaded architecture specifically designed for learning part relationships and spatial context, and robustly inferring pose even for…

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

Methods for generating synthetic data have become of increasing importance to build large datasets required for Convolution Neural Networks (CNN) based deep learning techniques for a wide range of computer vision applications. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2020-09-02 Muhammad Ali Farooq , Peter Corcoran

Face recognition now requires a large number of labelled masked face images in the era of this unprecedented COVID-19 pandemic. Unfortunately, the rapid spread of the virus has left us little time to prepare for such dataset in the wild. To…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Je Hyeong Hong , Hanjo Kim , Minsoo Kim , Gi Pyo Nam , Junghyun Cho , Hyeong-Seok Ko , Ig-Jae Kim