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In this paper, we consider the problem in defocus image deblurring. Previous classical methods follow two-steps approaches, i.e., first defocus map estimation and then the non-blind deblurring. In the era of deep learning, some researchers…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Qian Ye , Masanori Suganuma , Takayuki Okatani

Recovering a signal from auto-correlations or, equivalently, retrieving the phase linked to a given Fourier modulus, is a wide-spread problem in imaging. This problem has been tackled in a number of experimental situations, from optical…

Image and Video Processing · Electrical Eng. & Systems 2021-02-03 Daniele Ancora , Andrea Bassi

Despite the recent advancement in the study of removing motion blur in an image, it is still hard to deal with strong blurs. While there are limits in removing blurs from a single image, it has more potential to use multiple images, e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-07 Han Zou , Masanori Suganuma , Takayuki Okatani

This paper proposes a novel approach to image deblurring and digital zooming using sparse local models of image appearance. These models, where small image patches are represented as linear combinations of a few elements drawn from some…

Machine Learning · Computer Science 2011-10-07 Florent Couzinie-Devy , Julien Mairal , Francis Bach , Jean Ponce

Deep convolution neural networks (CNNs) play a critical role in single image super-resolution (SISR) since the amazing improvement of high performance computing. However, most of the super-resolution (SR) methods only focus on recovering…

Image and Video Processing · Electrical Eng. & Systems 2020-09-29 Dong Huo , Yee-Hong Yang

Restoring images degraded by spatially varying blur is a problem encountered in many disciplines such as astrophysics, computer vision or biomedical imaging. One of the main challenges to perform this task is to design efficient numerical…

Optimization and Control · Mathematics 2015-10-13 Paul Escande , Pierre Weiss

Remote sensing images are essential for many applications of the earth's sciences, but their quality can usually be degraded due to limitations in sensor technology and complex imaging environments. To address this, various remote sensing…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Yujie Feng , Yin Yang , Xiaohong Fan , Zhengpeng Zhang , Jianping Zhang

Image deblurring is a classical computer vision problem that aims to recover a sharp image from a blurred image. To solve this problem, existing methods apply the Encode-Decode architecture to design the complex networks to make a good…

Image and Video Processing · Electrical Eng. & Systems 2021-10-13 Wenbin Zou , Mingchao Jiang , Yunchen Zhang , Liang Chen , Zhiyong Lu , Yi Wu

Burst super-resolution (SR) technique provides a possibility of restoring rich details from low-quality images. However, since real world low-resolution (LR) images in practical applications have multiple complicated and unknown…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Wenyi Lian , Shanglian Peng

Blind image deblurring remains a topic of enduring interest. Learning based approaches, especially those that employ neural networks have emerged to complement traditional model based methods and in many cases achieve vastly enhanced…

Image and Video Processing · Electrical Eng. & Systems 2019-05-30 Yuelong Li , Mohammad Tofighi , Junyi Geng , Vishal Monga , Yonina C. Eldar

Blind deconvolution is an ill-posed problem arising in various fields ranging from microscopy to astronomy. The ill-posed nature of the problem requires adequate priors to arrive to a desirable solution. Recently, it has been shown that…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Gustav Bredell , Ertunc Erdil , Bruno Weber , Ender Konukoglu

In this work we introduce a new method that combines Parallel MRI and Compressed Sensing (CS) for accelerated image reconstruction from subsampled k-space data. The method first computes a convolved image, which gives the convolution…

Medical Physics · Physics 2021-09-20 Efrat Shimron , Andrew G. Webb , Haim Azhari

Existing deep learning methods for image deblurring typically train models using pairs of sharp images and their blurred counterparts. However, synthetically blurring images do not necessarily model the genuine blurring process in…

Computer Vision and Pattern Recognition · Computer Science 2020-05-08 Kaihao Zhang , Wenhan Luo , Yiran Zhong , Lin Ma , Bjorn Stenger , Wei Liu , Hongdong Li

Recent studies construct deblurred neural radiance fields~(DeRF) using dozens of blurry images, which are not practical scenarios if only a limited number of blurry images are available. This paper focuses on constructing DeRF from…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Dogyoon Lee , Donghyeong Kim , Jungho Lee , Minhyeok Lee , Seunghoon Lee , Sangyoun Lee

Video deblurring is a challenging problem as the blur is complex and usually caused by the combination of camera shakes, object motions, and depth variations. Optical flow can be used for kernel estimation since it predicts motion…

Computer Vision and Pattern Recognition · Computer Science 2017-08-14 Wenqi Ren , Jinshan Pan , Xiaochun Cao , Ming-Hsuan Yang

This paper presents a novel saturation aware space variant blind image deblurring framework designed to address challenges posed by saturated pixels in deblurring under high dynamic range and low light conditions. The proposed approach…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Muhammad Z. Alam , Larry Stetsiuk , Arooba Zeshan

Image deblurring is an economic way to reduce certain degradations (blur and noise) in acquired images. Thus, it has become essential tool in high resolution imaging in many applications, e.g., astronomy, microscopy or computational…

Optimization and Control · Mathematics 2017-05-19 Rahul Mourya , André Ferrari , Rémi Flamary , Pascal Bianchi , Cédric Richard

Blind image deblurring is a long standing challenging problem in image processing and low-level vision. Recently, sophisticated priors such as dark channel prior, extreme channel prior, and local maximum gradient prior, have shown promising…

Image and Video Processing · Electrical Eng. & Systems 2020-10-30 Fei Wen , Rendong Ying , Yipeng Liu , Peilin Liu , Trieu-Kien Truong

In this paper, we consider the highly ill-posed problem of jointly recovering two real-valued signals from the phaseless measurements of their circular convolution. The problem arises in various imaging modalities such as Fourier…

Image and Video Processing · Electrical Eng. & Systems 2020-03-02 Fahad Shamshad , Ali Ahmed

Single image blind deblurring is highly ill-posed as neither the latent sharp image nor the blur kernel is known. Even though considerable progress has been made, several major difficulties remain for blind deblurring, including the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-19 Yuxin Mao , Zhexiong Wan , Yuchao Dai , Xin Yu