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Face detection in unrestricted conditions has been a trouble for years due to various expressions, brightness, and coloration fringing. Recent studies show that deep learning knowledge of strategies can acquire spectacular performance…

Computer Vision and Pattern Recognition · Computer Science 2022-02-15 Sameer Aqib Hashmi

The presence of occlusions has provided substantial challenges to typically-powerful object recognition algorithms. Additional sources of information can be extremely valuable to reduce errors caused by occlusions. Scene context is known to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Courtney M. King , Daniel D. Leeds , Damian Lyons , George Kalaitzis

Dynamic facial expression recognition has many useful applications in social networks, multimedia content analysis, security systems and others. This challenging process must be done under recurrent problems of image illumination and low…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Ali Raza Shahid , Sheheryar Khan , Hong Yan

One of the most common problems encountered in human-computer interaction is automatic facial expression recognition. Although it is easy for human observer to recognize facial expressions, automatic recognition remains difficult for…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Mohamad Roshanzamir , Roohallah Alizadehsani , Mahdi Roshanzamir , Afshin Shoeibi , Juan M. Gorriz , Abbas Khosrave , Saeid Nahavandi

Occluded person re-identification is a challenging task as human body parts could be occluded by some obstacles (e.g. trees, cars, and pedestrians) in certain scenes. Some existing pose-guided methods solve this problem by aligning body…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Tao Wang , Hong Liu , Pinhao Song , Tianyu Guo , Wei Shi

One major challenge in 3D reconstruction is to infer the complete shape geometry from partial foreground occlusions. In this paper, we propose a method to reconstruct the complete 3D shape of an object from a single RGB image, with…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Chuhang Zou , Derek Hoiem

Tracking Facial Points in unconstrained videos is challenging due to the non-rigid deformation that changes over time. In this paper, we propose to exploit incremental learning for person-specific alignment in wild conditions. Our approach…

Computer Vision and Pattern Recognition · Computer Science 2016-09-12 Xi Peng , Qiong Hu , Junzhou Huang , Dimitris N. Metaxas

Most image-based 3D object reconstructors assume that objects are fully visible, ignoring occlusions that commonly occur in real-world scenarios. In this paper, we introduce Amodal3R, a conditional 3D generative model designed to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Tianhao Wu , Chuanxia Zheng , Frank Guan , Andrea Vedaldi , Tat-Jen Cham

Recently, occluded person re-identification(Re-ID) remains a challenging task that people are frequently obscured by other people or obstacles, especially in a crowd massing situation. In this paper, we propose a self-supervised deep…

Computer Vision and Pattern Recognition · Computer Science 2022-02-11 Mi Zhou , Hongye Liu , Zhekun Lv , Wei Hong , Xiai Chen

Facial expression recognition in videos is an active area of research in computer vision. However, fake facial expressions are difficult to be recognized even by humans. On the other hand, facial micro-expressions generally represent the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-03 Sai Prasanna Teja Reddy , Surya Teja Karri , Shiv Ram Dubey , Snehasis Mukherjee

To fully understand the 3D context of a single image, a visual system must be able to segment both the visible and occluded regions of objects, while discerning their occlusion order. Ideally, the system should be able to handle any object…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Jiayang Ao , Qiuhong Ke , Krista A. Ehinger

The lack of occlusion data in common action recognition video datasets limits model robustness and hinders consistent performance gains. We build OccludeNet, a large-scale occluded video dataset including both real and synthetic occlusion…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Guanyu Zhou , Wenxuan Liu , Wenxin Huang , Xuemei Jia , Xian Zhong , Chia-Wen Lin

Image classification models, including convolutional neural networks (CNNs), perform well on a variety of classification tasks but struggle under conditions of partial occlusion, i.e., conditions in which objects are partially covered from…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 Kaleb Kassaw , Francesco Luzi , Leslie M. Collins , Jordan M. Malof

Recurrent neural networks are powerful tools for handling incomplete data problems in computer vision, thanks to their significant generative capabilities. However, the computational demand for these algorithms is too high to work in real…

Computer Vision and Pattern Recognition · Computer Science 2015-05-07 Ozgur Yilmaz

In this paper, we present a new inpainting framework for recovering missing regions of video frames. Compared with image inpainting, performing this task on video presents new challenges such as how to preserving temporal consistency and…

Computer Vision and Pattern Recognition · Computer Science 2019-05-09 Yifan Ding , Chuan Wang , Haibin Huang , Jiaming Liu , Jue Wang , Liqiang Wang

Occlusion remains one of the major challenges in person reidentification (ReID) as a result of the diversity of poses and the variation of appearances. Developing novel architectures to improve the robustness of occlusion-aware person Re-ID…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Syeda Nyma Ferdous , Xin Li

Understanding and reconstructing occluded objects is a challenging problem, especially in open-world scenarios where categories and contexts are diverse and unpredictable. Traditional methods, however, are typically restricted to closed…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Jiayang Ao , Yanbei Jiang , Qiuhong Ke , Krista A. Ehinger

Facial expressions are one of the most powerful, natural and immediate means for human being to communicate their emotions and intensions. Recognition of facial expression has many applications including human-computer interaction,…

Computer Vision and Pattern Recognition · Computer Science 2016-04-18 Deepak Ghimire , Sunghwan Jeong , Joonwhoan Lee , Sang Hyun Park

In this work, we propose a novel two-stage framework, called FaceShifter, for high fidelity and occlusion aware face swapping. Unlike many existing face swapping works that leverage only limited information from the target image when…

Computer Vision and Pattern Recognition · Computer Science 2020-09-16 Lingzhi Li , Jianmin Bao , Hao Yang , Dong Chen , Fang Wen

In recent decades, 3D morphable model (3DMM) has been commonly used in image-based photorealistic 3D face reconstruction. However, face images are often corrupted by serious occlusion by non-face objects including eyeglasses, masks, and…

Computer Vision and Pattern Recognition · Computer Science 2019-09-09 Xiaowei Yuan , In Kyu Park