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Facial expression recognition has been an active research area over the past few decades, and it is still challenging due to the high intra-class variation. Traditional approaches for this problem rely on hand-crafted features such as SIFT,…

Computer Vision and Pattern Recognition · Computer Science 2019-02-05 Shervin Minaee , Amirali Abdolrashidi

Inpainting arbitrary missing regions is challenging because learning valid features for various masked regions is nontrivial. Though U-shaped encoder-decoder frameworks have been witnessed to be successful, most of them share a common…

Computer Vision and Pattern Recognition · Computer Science 2021-05-19 Manyu Zhu , Dongliang He , Xin Li , Chao Li , Fu Li , Xiao Liu , Errui Ding , Zhaoxiang Zhang

The performance of person re-identification (Re-ID) has been seriously effected by the large cross-view appearance variations caused by mutual occlusions and background clutters. Hence learning a feature representation that can adaptively…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Sanping Zhou , Jinjun Wang , Deyu Meng , Yudong Liang , Yihong Gong , Nanning Zheng

Driving in the dynamic, multi-agent, and complex urban environment is a difficult task requiring a complex decision policy. The learning of such a policy requires a state representation that can encode the entire environment. Mid-level…

Robotics · Computer Science 2020-03-03 Eshagh Kargar , Ville Kyrki

In this paper we consider the problem of multi-view face detection. While there has been significant research on this problem, current state-of-the-art approaches for this task require annotation of facial landmarks, e.g. TSM [25], or…

Computer Vision and Pattern Recognition · Computer Science 2015-04-22 Sachin Sudhakar Farfade , Mohammad Saberian , Li-Jia Li

Identifying robust and accurate correspondences across images is a fundamental problem in computer vision that enables various downstream tasks. Recent semi-dense matching methods emphasize the effectiveness of fusing relevant cross-view…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Hongkai Chen , Zixin Luo , Yurun Tian , Xuyang Bai , Ziyu Wang , Lei Zhou , Mingmin Zhen , Tian Fang , David McKinnon , Yanghai Tsin , Long Quan

Automatic melanoma segmentation in dermoscopic images is essential in computer-aided diagnosis of skin cancer. Existing methods may suffer from the hole and shrink problems with limited segmentation performance. To tackle these issues, we…

Computer Vision and Pattern Recognition · Computer Science 2020-01-14 Xiaoqing Guo , Zhen Chen , Yixuan Yuan

Visual attention has been extensively studied for learning fine-grained features in both facial expression recognition (FER) and Action Unit (AU) detection. A broad range of previous research has explored how to use attention modules to…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Xiaotian Li , Zhihua Li , Huiyuan Yang , Geran Zhao , Lijun Yin

Different from image inpainting, image outpainting has relative less context in the image center to capture and more content at the image border to predict. Therefore, classical encoder-decoder pipeline of existing methods may not predict…

Computer Vision and Pattern Recognition · Computer Science 2020-10-28 Xiaofeng Zhang , Feng Chen , Cailing Wang , Songsong Wu , Ming Tao , Guoping Jiang

Since the beginning of world-wide COVID-19 pandemic, facial masks have been recommended to limit the spread of the disease. However, these masks hide certain facial attributes. Hence, it has become difficult for existing face recognition…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Yooshin Cho , Hanbyel Cho , Hyeong Gwon Hong , Jaesung Ahn , Dongmin Cho , JungWoo Chang , Junmo Kim

Attention-based encoder-decoder framework is widely used in the scene text recognition task. However, for the current state-of-the-art(SOTA) methods, there is room for improvement in terms of the efficient usage of local visual and global…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Mengmeng Cui , Wei Wang , Jinjin Zhang , Liang Wang

Masked image modeling (MIM) has achieved promising results on various vision tasks. However, the limited discriminability of learned representation manifests there is still plenty to go for making a stronger vision learner. Towards this…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Zhicheng Huang , Xiaojie Jin , Chengze Lu , Qibin Hou , Ming-Ming Cheng , Dongmei Fu , Xiaohui Shen , Jiashi Feng

In this work, we propose a novel unsupervised deep learning model to address multi-focus image fusion problem. First, we train an encoder-decoder network in unsupervised manner to acquire deep feature of input images. And then we utilize…

Computer Vision and Pattern Recognition · Computer Science 2020-09-25 Boyuan Ma , Xiaojuan Ban , Haiyou Huang , Yu Zhu

The downlink channel state information (CSI) estimation and low overhead acquisition are the major challenges for massive MIMO systems in frequency division duplex to enable high MIMO gain. Recently, numerous studies have been conducted to…

Information Theory · Computer Science 2023-08-07 Mingming Zhao , Lin Liu , Lifu Liu , Mengke Li , Qi Tian

Image inpainting has made significant advances in recent years. However, it is still challenging to recover corrupted images with both vivid textures and reasonable structures. Some specific methods only tackle regular textures while losing…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Qiaole Dong , Chenjie Cao , Yanwei Fu

DeepFakes have raised serious societal concerns, leading to a great surge in detection-based forensics methods in recent years. Face forgery recognition is a standard detection method that usually follows a two-phase pipeline. While those…

Computer Vision and Pattern Recognition · Computer Science 2024-05-27 Cong Zhang , Honggang Qi , Shuhui Wang , Yuezun Li , Siwei Lyu

This paper presents Dense Siamese Network (DenseSiam), a simple unsupervised learning framework for dense prediction tasks. It learns visual representations by maximizing the similarity between two views of one image with two types of…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Wenwei Zhang , Jiangmiao Pang , Kai Chen , Chen Change Loy

Discriminative correlation filters (DCF) and siamese networks have achieved promising performance on visual tracking tasks thanks to their superior computational efficiency and reliable similarity metric learning, respectively. However, how…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Xizhe Xue , Ying Li , Xiaoyue Yin , Qiang Shen

Handwritten mathematical expression recognition is a challenging problem due to the complicated two-dimensional structures, ambiguous handwriting input and variant scales of handwritten math symbols. To settle this problem, we utilize the…

Computer Vision and Pattern Recognition · Computer Science 2018-02-01 Jianshu Zhang , Jun Du , Lirong Dai

Recognition of low-quality face images remains a challenge due to invisible or deformation in partial facial regions. For low-quality images dominated by missing partial facial regions, local region similarity contributes more to face…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Wang Yu , Wei Wei