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Head pose estimation has become a crucial area of research in computer vision given its usefulness in a wide range of applications, including robotics, surveillance, or driver attention monitoring. One of the most difficult challenges in…

Computer Vision and Pattern Recognition · Computer Science 2025-01-23 José Celestino , Manuel Marques , Jacinto C. Nascimento

Unwanted camera occlusions, such as debris, dust, rain-drops, and snow, can severely degrade the performance of computer-vision systems. Dynamic occlusions are particularly challenging because of the continuously changing pattern. Existing…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Rong Zou , Manasi Muglikar , Nico Messikommer , Davide Scaramuzza

Face recognition remains a challenging task in unconstrained scenarios, especially when faces are partially occluded. To improve the robustness against occlusion, augmenting the training images with artificial occlusions has been proved as…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Mingjie He , Jie Zhang , Shiguang Shan , Xiao Liu , Zhongqin Wu , Xilin Chen

From just a short glance at a video, we can often tell whether a person's action is intentional or not. Can we train a model to recognize this? We introduce a dataset of in-the-wild videos of unintentional action, as well as a suite of…

Computer Vision and Pattern Recognition · Computer Science 2019-11-27 Dave Epstein , Boyuan Chen , Carl Vondrick

The capability to accurately estimate 3D human poses is crucial for diverse fields such as action recognition, gait recognition, and virtual/augmented reality. However, a persistent and significant challenge within this field is the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Rohit Lal , Saketh Bachu , Yash Garg , Arindam Dutta , Calvin-Khang Ta , Dripta S. Raychaudhuri , Hannah Dela Cruz , M. Salman Asif , Amit K. Roy-Chowdhury

In autonomous driving, monocular sequences contain lots of information. Monocular depth estimation, camera ego-motion estimation and optical flow estimation in consecutive frames are high-profile concerns recently. By analyzing tasks above,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-21 Guangming Wang , Chi Zhang , Hesheng Wang , Jingchuan Wang , Yong Wang , Xinlei Wang

Predicting pedestrian crossing intentions is crucial for the navigation of mobile robots and intelligent vehicles. Although recent deep learning-based models have shown significant success in forecasting intentions, few consider incomplete…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Yu Liu , Zhijie Liu , Zedong Yang , You-Fu Li , He Kong

Human Pose Estimation (HPE) involves detecting and localizing keypoints on the human body from visual data. In 3D HPE, occlusions, where parts of the body are not visible in the image, pose a significant challenge for accurate pose…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Filipa Lino , Carlos Santiago , Manuel Marques

Estimating 3D poses from a monocular video is still a challenging task, despite the significant progress that has been made in recent years. Generally, the performance of existing methods drops when the target person is too small/large, or…

Computer Vision and Pattern Recognition · Computer Science 2020-04-27 Yu Cheng , Bo Yang , Bo Wang , Robby T. Tan

Most research on facial expression recognition (FER) is conducted in highly controlled environments, but its performance is often unacceptable when applied to real-world situations. This is because when unexpected objects occlude the face,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-24 Isack Lee , Eungi Lee , Seok Bong Yoo

Pedestrian detection relying on deep convolution neural networks has made significant progress. Though promising results have been achieved on standard pedestrians, the performance on heavily occluded pedestrians remains far from…

Computer Vision and Pattern Recognition · Computer Science 2019-10-16 Yanwei Pang , Jin Xie , Muhammad Haris Khan , Rao Muhammad Anwer , Fahad Shahbaz Khan , Ling Shao

Human action recognition in video is an active yet challenging research topic due to high variation and complexity of data. In this paper, a novel video based action recognition framework utilizing complementary cues is proposed to handle…

Computer Vision and Pattern Recognition · Computer Science 2019-09-10 Muhammad Usman Khalid , Jie Yu

The problem of action recognition involves locating the action in the video, both over time and spatially in the image. The dominant current approaches use supervised learning to solve this problem, and require large amounts of annotated…

Computer Vision and Pattern Recognition · Computer Science 2020-03-30 Sathyanarayanan N. Aakur , Sudeep Sarkar

Motion is a salient cue to recognize actions in video. Modern action recognition models leverage motion information either explicitly by using optical flow as input or implicitly by means of 3D convolutional filters that simultaneously…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Heng Wang , Du Tran , Lorenzo Torresani , Matt Feiszli

Facial appearance variations due to occlusion has been one of the main challenges for face recognition systems. To facilitate further research in this area, it is necessary and important to have occluded face datasets collected from…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Mustafa Ekrem Erakın , Uğur Demir , Hazım Kemal Ekenel

Occlusions play an important role in disparity and optical flow estimation, since matching costs are not available in occluded areas and occlusions indicate depth or motion boundaries. Moreover, occlusions are relevant for motion…

Computer Vision and Pattern Recognition · Computer Science 2018-08-09 Eddy Ilg , Tonmoy Saikia , Margret Keuper , Thomas Brox

Localizing unusual activities, such as human errors or surveillance incidents, in videos holds practical significance. However, current video understanding models struggle with localizing these unusual events likely because of their…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Hasnat Md Abdullah , Tian Liu , Kangda Wei , Shu Kong , Ruihong Huang

Although occlusion widely exists in nature and remains a fundamental challenge for pose estimation, existing heatmap-based approaches suffer serious degradation on occlusions. Their intrinsic problem is that they directly localize the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Lingteng Qiu , Xuanye Zhang , Yanran Li , Guanbin Li , Xiaojun Wu , Zixiang Xiong , Xiaoguang Han , Shuguang Cui

Human action recognition in low-light environments is crucial for various real-world applications. However, the existing approaches overlook the full utilization of brightness information throughout the training phase, leading to suboptimal…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Shihao Cheng , Jinlu Zhang , Yue Liu , Zhigang Tu

In this work, we contribute to video saliency research in two ways. First, we introduce a new benchmark for predicting human eye movements during dynamic scene free-viewing, which is long-time urged in this field. Our dataset, named DHF1K…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Wenguan Wang , Jianbing Shen , Fang Guo , Ming-Ming Cheng , Ali Borji