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200 papers

Head pose estimation is a crucial problem for many tasks, such as driver attention, fatigue detection, and human behaviour analysis. It is well known that neural networks are better at handling classification problems than regression…

Computer Vision and Pattern Recognition · Computer Science 2020-05-26 Zhongxu Hu , Yang Xing , Chen Lv , Peng Hang , Jie Liu

In general, human pose estimation methods are categorized into two approaches according to their architectures: regression (i.e., heatmap-free) and heatmap-based methods. The former one directly estimates precise coordinates of each…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Jonghyun Kim , Bosang Kim , Hyotae Lee , Jungpyo Kim , Wonhyeok Im , Lanying Jin , Dowoo Kwon , Jungho Lee

The accurate localization of facial landmarks is at the core of face analysis tasks, such as face recognition and facial expression analysis, to name a few. In this work, we propose a novel localization approach based on a deep learning…

Computer Vision and Pattern Recognition · Computer Science 2021-07-21 Shahar Mahpod , Rig Das , Emanuele Maiorana , Yosi Keller , Patrizio Campisi

For tackling the task of 2D human pose estimation, the great majority of the recent methods regard this task as a heatmap estimation problem, and optimize the heatmap prediction using the Gaussian-smoothed heatmap as the optimization…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Haoxuan Qu , Li Xu , Yujun Cai , Lin Geng Foo , Jun Liu

Heatmap regression has been used for landmark localization for quite a while now. Most of the methods use a very deep stack of bottleneck modules for heatmap classification stage, followed by heatmap regression to extract the keypoints. In…

Computer Vision and Pattern Recognition · Computer Science 2018-03-29 Amit Kumar , Rama Chellappa

This paper describes our submission to the 1st 3D Face Alignment in the Wild (3DFAW) Challenge. Our method builds upon the idea of convolutional part heatmap regression [1], extending it for 3D face alignment. Our method decomposes the…

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

In this paper, we address the problem of landmark-based visual place recognition. In the state-of-the-art method, accurate object proposal algorithms are first leveraged for generating a set of local regions containing particular landmarks…

Robotics · Computer Science 2018-08-24 Bo Yang , Jun Li , Xiaosu Xu , Hong Zhang

We propose a new semi-supervised learning design for human pose estimation that revisits the popular dual-student framework and enhances it two ways. First, we introduce a denoising scheme to generate reliable pseudo-heatmaps as targets for…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Zhuoran Yu , Manchen Wang , Yanbei Chen , Paolo Favaro , Davide Modolo

Automatic anatomical landmark localization has made great strides by leveraging deep learning methods in recent years. The ability to quantify the uncertainty of these predictions is a vital component needed for these methods to be adopted…

Machine Learning · Computer Science 2022-12-20 Lawrence Schobs , Andrew J. Swift , Haiping Lu

Visual localization is the task of accurate camera pose estimation in a known scene. It is a key problem in computer vision and robotics, with applications including self-driving cars, Structure-from-Motion, SLAM, and Mixed Reality.…

Computer Vision and Pattern Recognition · Computer Science 2019-03-19 Torsten Sattler , Qunjie Zhou , Marc Pollefeys , Laura Leal-Taixe

Heatmap is a common geovisualization method that interpolates and visualizes a set of point observations on a map surface. Most of online web mapping libraries implement a one-pass heatmap algorithm using HTML5 canvas or WebGL for efficient…

Graphics · Computer Science 2022-12-16 Yan Y. Liu , Melissa Allen-Dumas

Camera relocalization methods range from dense image alignment to direct camera pose regression from a query image. Among these, sparse feature matching stands out as an efficient, versatile, and generally lightweight approach with numerous…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Vincenzo Polizzi , Marco Cannici , Davide Scaramuzza , Jonathan Kelly

Mitral valve repair is a surgery to restore the function of the mitral valve. To achieve this, a prosthetic ring is sewed onto the mitral annulus. Analyzing the sutures, which are punctured through the annulus for ring implantation, can be…

Computer Vision and Pattern Recognition · Computer Science 2021-01-11 Antonia Stern , Lalith Sharan , Gabriele Romano , Sven Koehler , Matthias Karck , Raffaele De Simone , Ivo Wolf , Sandy Engelhardt

Recently, heatmap regression models have become popular due to their superior performance in locating facial landmarks. However, three major problems still exist among these models: (1) they are computationally expensive; (2) they usually…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Haibo Jin , Shengcai Liao , Ling Shao

Human pose estimation has achieved significant progress on images with high imaging resolution. However, low-resolution imagery data bring nontrivial challenges which are still under-studied. To fill this gap, we start with investigating…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Chen Wang , Feng Zhang , Xiatian Zhu , Shuzhi Sam Ge

Anatomical Landmark Detection is the process of identifying key areas of an image for clinical measurements. Each landmark is a single ground truth point labelled by a clinician. A machine learning model predicts the locus of a landmark as…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Julian Wyatt , Irina Voiculescu

In human and hand pose estimation, heatmaps are a crucial intermediate representation for a body or hand keypoint. Two popular methods to decode the heatmap into a final joint coordinate are via an argmax, as done in heatmap detection, or…

Computer Vision and Pattern Recognition · Computer Science 2023-01-26 Kerui Gu , Linlin Yang , Michael Bi Mi , Angela Yao

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

In the field of human pose estimation, regression-based methods have been dominated in terms of speed, while heatmap-based methods are far ahead in terms of performance. How to take advantage of both schemes remains a challenging problem.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Suhang Ye , Yingyi Zhang , Jie Hu , Liujuan Cao , Shengchuan Zhang , Lei Shen , Jun Wang , Shouhong Ding , Rongrong Ji

While heatmap-based human pose estimation methods have shown strong performance, they suffer from three main problems: (P1) "Commonly used Mean Squared Error (MSE)" Loss may not always improve joint localization because it penalizes all…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Muhammed Can Keles , Bedrettin Cetinkaya , Sinan Kalkan , Emre Akbas