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Being symmetric positive-definite (SPD), covariance matrix has traditionally been used to represent a set of local descriptors in visual recognition. Recent study shows that kernel matrix can give considerably better representation by…

Computer Vision and Pattern Recognition · Computer Science 2017-11-15 Melih Engin , Lei Wang , Luping Zhou , Xinwang Liu

Blind image deblurring is the process of recovering a sharp image from a blurred one without prior knowledge about the blur kernel. It is a small data problem, since the key challenge lies in estimating the unknown degrees of blur from a…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Abdul Mohaimen Al Radi , Prothito Shovon Majumder , Md. Mosaddek Khan

Computational image reconstruction algorithms generally produce a single image without any measure of uncertainty or confidence. Regularized Maximum Likelihood (RML) and feed-forward deep learning approaches for inverse problems typically…

Machine Learning · Computer Science 2020-12-18 He Sun , Katherine L. Bouman

With the strengths of both deep learning and kernel methods like Gaussian Processes (GPs), Deep Kernel Learning (DKL) has gained considerable attention in recent years. From the computational perspective, however, DKL becomes challenging…

Machine Learning · Computer Science 2025-02-18 Wenyuan Zhao , Haoyuan Chen , Tie Liu , Rui Tuo , Chao Tian

Traditional model-based image reconstruction (MBIR) methods combine forward and noise models with simple object priors. Recent application of deep learning methods for image reconstruction provides a successful data-driven approach to…

Image and Video Processing · Electrical Eng. & Systems 2022-05-20 Ling Chen , Zhishen Huang , Yong Long , Saiprasad Ravishankar

Kernel-based subspace clustering, which addresses the nonlinear structures in data, is an evolving area of research. Despite noteworthy progressions, prevailing methodologies predominantly grapple with limitations relating to (i) the…

Machine Learning · Computer Science 2025-01-22 Kunpeng Xu , Lifei Chen , Shengrui Wang

Color-guided depth map super-resolution (CDSR) improve the spatial resolution of a low-quality depth map with the corresponding high-quality color map, benefiting various applications such as 3D reconstruction, virtual reality, and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Yuan Shi , Bin Xia , Rui Zhu , Qingmin Liao , Wenming Yang

Recovering sharp images from dual-pixel (DP) pairs with disparity-dependent blur is a challenging task.~Existing blur map-based deblurring methods have demonstrated promising results. In this paper, we propose, to the best of our knowledge,…

Computer Vision and Pattern Recognition · Computer Science 2023-11-22 Hao Yang , Liyuan Pan , Yan Yang , Richard Hartley , Miaomiao Liu

The purpose of face super-resolution (FSR) is to reconstruct high-resolution (HR) face images from low-resolution (LR) inputs. With the continuous advancement of deep learning technologies, contemporary prior-guided FSR methods initially…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Qiu Yang , Xiao Sun , Xin-yu Li , Feng-Qi Cui , Yu-Tong Guo , Shuang-Zhen Hu , Ping Luo , Si-Ying Li

The image blurring process is generally modelled as the convolution of a blur kernel with a latent image. Therefore, the estimation of the blur kernel is essentially important for blind image deblurring. Unlike existing approaches which…

Computer Vision and Pattern Recognition · Computer Science 2019-04-18 Liyuan Pan , Richard Hartley , Miaomiao Liu , Yuchao Dai

Inferring parameters of high-dimensional partial differential equations (PDEs) poses significant computational and inferential challenges, primarily due to the curse of dimensionality and the inherent limitations of traditional numerical…

Computational Engineering, Finance, and Science · Computer Science 2025-09-18 Weihao Yan , Christoph Brune , Mengwu Guo

The inductive bias of the convolutional neural network (CNN) can be a strong prior for image restoration, which is known as the Deep Image Prior (DIP). Recently, DIP is utilized in unsupervised dynamic MRI reconstruction, which adopts a…

Image and Video Processing · Electrical Eng. & Systems 2024-09-25 Zhongsen Li , Wenxuan Chen , Shuai Wang , Chuyu Liu , Qing Zou , Rui Li

Although Faster R-CNN and its variants have shown promising performance in object detection, they only exploit simple first-order representation of object proposals for final classification and regression. Recent classification methods…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Hao Wang , Qilong Wang , Mingqi Gao , Peihua Li , Wangmeng Zuo

Deep Learning has led to a dramatic leap in Super-Resolution (SR) performance in the past few years. However, being supervised, these SR methods are restricted to specific training data, where the acquisition of the low-resolution (LR)…

Computer Vision and Pattern Recognition · Computer Science 2017-12-19 Assaf Shocher , Nadav Cohen , Michal Irani

Non-uniform blind deblurring for general dynamic scenes is a challenging computer vision problem as blurs arise not only from multiple object motions but also from camera shake, scene depth variation. To remove these complicated motion…

Computer Vision and Pattern Recognition · Computer Science 2018-05-08 Seungjun Nah , Tae Hyun Kim , Kyoung Mu Lee

Multi-focus image fusion (MFIF) and super-resolution (SR) are the inverse problem of imaging model, purposes of MFIF and SR are obtaining all-in-focus and high-resolution 2D mapping of targets. Though various MFIF and SR methods have been…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Yuanjie Gu , Yinghan Guan , Zhibo Xiao , Haoran Dai , Cheng Liu , Shouyu Wang

Hyperspectral image (HSI) reconstruction aims to recover 3D HSI from its degraded 2D measurements. Recently great progress has been made in deep learning-based methods, however, these methods often struggle to accurately capture…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Mingyang Yu , Zhijian Wu , Dingjiang Huang

Compressive imaging aims to recover a latent image from under-sampled measurements, suffering from a serious ill-posed inverse problem. Recently, deep neural networks have been applied to this problem with superior results, owing to the…

Image and Video Processing · Electrical Eng. & Systems 2021-10-26 Yixiao Yang , Ran Tao , Kaixuan Wei , Ying Fu

The present paper studies so-called deep image prior (DIP) techniques in the context of ill-posed inverse problems. DIP networks have been recently introduced for applications in image processing; also first experimental results for…

Machine Learning · Computer Science 2020-03-19 Sören Dittmer , Tobias Kluth , Peter Maass , Daniel Otero Baguer

Blind image deblurring is a challenging low-level vision task that involves estimating the unblurred image when the blur kernel is unknown. In this paper, we present a self-supervised multi-scale blind image deblurring method to jointly…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Lening Guo , Jing Yu , Ning Zhang , Chuangbai Xiao
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