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Several factors contribute to the appearance of an object in a visual scene, including pose, illumination, and deformation, among others. Each factor accounts for a source of variability in the data, while the multiplicative interactions of…

Computer Vision and Pattern Recognition · Computer Science 2019-02-26 Mengjiao Wang , Zhixin Shu , Shiyang Cheng , Yannis Panagakis , Dimitris Samaras , Stefanos Zafeiriou

Gait, the walking pattern of individuals, is one of the most important biometrics modalities. Most of the existing gait recognition methods take silhouettes or articulated body models as the gait features. These methods suffer from degraded…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Ziyuan Zhang , Luan Tran , Xi Yin , Yousef Atoum , Xiaoming Liu , Jian Wan , Nanxin Wang

Although a significant progress has been witnessed in supervised person re-identification (re-id), it remains challenging to generalize re-id models to new domains due to the huge domain gaps. Recently, there has been a growing interest in…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Yang Zou , Xiaodong Yang , Zhiding Yu , B. V. K. Vijaya Kumar , Jan Kautz

Recent works have shown how realistic talking face images can be obtained under the supervision of geometry guidance, e.g., facial landmark or boundary. To alleviate the demand for manual annotations, in this paper, we propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Xianfang Zeng , Yusu Pan , Mengmeng Wang , Jiangning Zhang , Yong Liu

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

Deep neural networks (DNNs) trained on large-scale datasets have recently achieved impressive improvements in face recognition. But a persistent challenge remains to develop methods capable of handling large pose variations that are…

Computer Vision and Pattern Recognition · Computer Science 2017-08-17 Xi Peng , Xiang Yu , Kihyuk Sohn , Dimitris Metaxas , Manmohan Chandraker

Deep learning models trained on audio-visual data have been successfully used to achieve state-of-the-art performance for emotion recognition. In particular, models trained with multitask learning have shown additional performance…

Image and Video Processing · Electrical Eng. & Systems 2021-02-15 Raghuveer Peri , Srinivas Parthasarathy , Charles Bradshaw , Shiva Sundaram

Identification using biometrics is an important yet challenging task. Abundant research has been conducted on identifying personal identity or gender using given signals. Various types of biometrics such as electrocardiogram (ECG),…

Computer Vision and Pattern Recognition · Computer Science 2019-09-13 Hyoung-Kyu Song , Ebrahim AlAlkeem , Jaewoong Yun , Tae-Ho Kim , Tae-Ho Kim , Hyerin Yoo , Dasom Heo , Chan Yeob Yeun , Myungsu Chae

Disentanglement is a highly desirable property of representation due to its similarity with human's understanding and reasoning. This improves interpretability, enables the performance of down-stream tasks, and enables controllable…

Machine Learning · Computer Science 2020-10-24 Jiantao Wu , Lin Wang

The widespread use of smart computer vision systems in our personal spaces has led to an increased consciousness about the privacy and security risks that these systems pose. On the one hand, we want these systems to assist in our daily…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Sudhakar Kumawat , Hajime Nagahara

In this work we introduce Deforming Autoencoders, a generative model for images that disentangles shape from appearance in an unsupervised manner. As in the deformable template paradigm, shape is represented as a deformation between a…

Computer Vision and Pattern Recognition · Computer Science 2018-06-19 Zhixin Shu , Mihir Sahasrabudhe , Alp Guler , Dimitris Samaras , Nikos Paragios , Iasonas Kokkinos

Limited annotated data available for the recognition of facial expression and action units embarrasses the training of deep networks, which can learn disentangled invariant features. However, a linear model with just several parameters…

Computer Vision and Pattern Recognition · Computer Science 2017-01-16 Xiang Xiang , Trac D. Tran

Although face swapping has attracted much attention in recent years, it remains a challenging problem. Existing methods leverage a large number of data samples to explore the intrinsic properties of face swapping without considering the…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Qi Li , Weining Wang , Chengzhong Xu , Zhenan Sun , Ming-Hsuan Yang

Recently, video-based person re-identification (re-ID) has drawn increasing attention in compute vision community because of its practical application prospects. Due to the inaccurate person detections and pose changes, pedestrian…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Guoqing Zhang , Yuhao Chen , Yang Dai , Yuhui Zheng , Yi Wu

This paper introduces an unsupervised framework to extract semantically rich features for video representation. Inspired by how the human visual system groups objects based on motion cues, we propose a deep convolutional neural network that…

Computer Vision and Pattern Recognition · Computer Science 2017-07-18 Xunyu Lin , Victor Campos , Xavier Giro-i-Nieto , Jordi Torres , Cristian Canton Ferrer

Face anti-spoofing is crucial to security of face recognition systems. Previous approaches focus on developing discriminative models based on the features extracted from images, which may be still entangled between spoof patterns and real…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Ke-Yue Zhang , Taiping Yao , Jian Zhang , Ying Tai , Shouhong Ding , Jilin Li , Feiyue Huang , Haichuan Song , Lizhuang Ma

Biometric systems based on Machine learning and Deep learning are being extensively used as authentication mechanisms in resource-constrained environments like smartphones and other small computing devices. These AI-powered facial…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Mohit Raghavendra , Pravan Omprakash , B R Mukesh , Sowmya Kamath

The paper introduces AniTalker, an innovative framework designed to generate lifelike talking faces from a single portrait. Unlike existing models that primarily focus on verbal cues such as lip synchronization and fail to capture the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Tao Liu , Feilong Chen , Shuai Fan , Chenpeng Du , Qi Chen , Xie Chen , Kai Yu

In recent years, audio-driven 3D facial animation has gained significant attention, particularly in applications such as virtual reality, gaming, and video conferencing. However, accurately modeling the intricate and subtle dynamics of…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Guinan Su , Yanwu Yang , Zhifeng Li

Face analysis is a core part of computer vision, in which remarkable progress has been observed in the past decades. Current methods achieve recognition and tracking with invariance to fundamental modes of variation such as illumination, 3D…

Computer Vision and Pattern Recognition · Computer Science 2018-03-12 Grigorios G. Chrysos , Paolo Favaro , Stefanos Zafeiriou