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Recognition in low quality face datasets is challenging because facial attributes are obscured and degraded. Advances in margin-based loss functions have resulted in enhanced discriminability of faces in the embedding space. Further,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-17 Minchul Kim , Anil K. Jain , Xiaoming Liu

Batch normalization is a key component of most image classification models, but it has many undesirable properties stemming from its dependence on the batch size and interactions between examples. Although recent work has succeeded in…

Computer Vision and Pattern Recognition · Computer Science 2021-02-12 Andrew Brock , Soham De , Samuel L. Smith , Karen Simonyan

Most of the achievements in artificial intelligence so far were accomplished by supervised learning which requires numerous annotated training data and thus costs innumerable manpower for labeling. Unsupervised learning is one of the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-14 Mingxiang Chen , Zhanguo Chang , Haonan Lu , Bitao Yang , Zhuang Li , Liufang Guo , Zhecheng Wang

We propose a simple and application-friendly network (called SimpleNet) for detecting and localizing anomalies. SimpleNet consists of four components: (1) a pre-trained Feature Extractor that generates local features, (2) a shallow Feature…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Zhikang Liu , Yiming Zhou , Yuansheng Xu , Zilei Wang

Efficient and effective real-world image super-resolution (Real-ISR) is a challenging task due to the unknown complex degradation of real-world images and the limited computation resources in practical applications. Recent research on…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Jie Liang , Hui Zeng , Lei Zhang

Compressed sensing (CS) is a challenging problem in image processing due to reconstructing an almost complete image from a limited measurement. To achieve fast and accurate CS reconstruction, we synthesize the advantages of two well-known…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Nanyu Li , Charles C. Zhou

The advancement of imaging devices and countless images generated everyday pose an increasingly high demand on image denoising, which still remains a challenging task in terms of both effectiveness and efficiency. To improve denoising…

Image and Video Processing · Electrical Eng. & Systems 2023-05-10 Zhaoming Kong , Fangxi Deng , Haomin Zhuang , Jun Yu , Lifang He , Xiaowei Yang

Current vision systems are trained on huge datasets, and these datasets come with costs: curation is expensive, they inherit human biases, and there are concerns over privacy and usage rights. To counter these costs, interest has surged in…

Computer Vision and Pattern Recognition · Computer Science 2022-05-02 Manel Baradad , Jonas Wulff , Tongzhou Wang , Phillip Isola , Antonio Torralba

Image restoration is a low-level vision task, most CNN methods are designed as a black box, lacking transparency and internal aesthetics. Although some methods combining traditional optimization algorithms with DNNs have been proposed, they…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Xiao Feng Zhang , Chao Chen Gu , Shan Ying Zhu

Convolutional Neural Networks have achieved significant success across multiple computer vision tasks. However, they are vulnerable to carefully crafted, human-imperceptible adversarial noise patterns which constrain their deployment in…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Aamir Mustafa , Salman H. Khan , Munawar Hayat , Jianbing Shen , Ling Shao

Currently, most deep learning methods cannot solve the problem of scarcity of industrial product defect samples and significant differences in characteristics. This paper proposes an unsupervised defect detection algorithm based on a…

Computer Vision and Pattern Recognition · Computer Science 2022-12-27 Chao Hu , Jian Yao , Weijie Wu , Weibin Qiu , Liqiang Zhu

Low-light images, i.e. the images captured in low-light conditions, suffer from very poor visibility caused by low contrast, color distortion and significant measurement noise. Low-light image enhancement is about improving the visibility…

Image and Video Processing · Electrical Eng. & Systems 2020-07-08 Jinxiu Liang , Yong Xu , Yuhui Quan , Jingwen Wang , Haibin Ling , Hui Ji

The accuracy of deep convolutional neural networks (CNNs) generally improves when fueled with high resolution images. However, this often comes at a high computational cost and high memory footprint. Inspired by the fact that not all…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Yulin Wang , Kangchen Lv , Rui Huang , Shiji Song , Le Yang , Gao Huang

Spatial redundancy widely exists in visual recognition tasks, i.e., discriminative features in an image or video frame usually correspond to only a subset of pixels, while the remaining regions are irrelevant to the task at hand. Therefore,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Gao Huang , Yulin Wang , Kangchen Lv , Haojun Jiang , Wenhui Huang , Pengfei Qi , Shiji Song

Effective image retrieval with text feedback stands to impact a range of real-world applications, such as e-commerce. Given a source image and text feedback that describes the desired modifications to that image, the goal is to retrieve the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Yuxin Tian , Shawn Newsam , Kofi Boakye

A judicious combination of dictionary learning methods, block sparsity and source recovery algorithm are used in a hierarchical manner to identify the noises and the speakers from a noisy conversation between two people. Conversations are…

Sound · Computer Science 2016-10-31 K V Vijay Girish , A G Ramakrishnan , T V Ananthapadmanabha

The majority of signal data captured in the real world uses numerous sensors with different resolutions. In practice, however, most deep learning architectures are fixed-resolution; they consider a single resolution at training time and…

Machine Learning · Computer Science 2024-12-10 Léa Demeule , Mahtab Sandhu , Glen Berseth

Popular methods usually use a degradation model in a supervised way to learn a watermark removal model. However, it is true that reference images are difficult to obtain in the real world, as well as collected images by cameras suffer from…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Chunwei Tian , Menghua Zheng , Bo Li , Yanning Zhang , Shichao Zhang , David Zhang

Researches in novel viewpoint synthesis majorly focus on interpolation from multi-view input images. In this paper, we focus on a more challenging and ill-posed problem that is to synthesize novel viewpoints from one single input image. To…

Computer Vision and Pattern Recognition · Computer Science 2017-11-20 Xiaodong Cun , Feng Xu , Chi-Man Pun , Hao Gao

Recent works show that convolutional neural network (CNN) architectures have a spectral bias towards lower frequencies, which has been leveraged for various image restoration tasks in the Deep Image Prior (DIP) framework. The benefit of the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Metin Ersin Arican , Ozgur Kara , Gustav Bredell , Ender Konukoglu