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We present a simple and effective approach for non-blind image deblurring, combining classical techniques and deep learning. In contrast to existing methods that deblur the image directly in the standard image space, we propose to perform…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Jiangxin Dong , Stefan Roth , Bernt Schiele

Deep neural networks (DNNs) based methods have achieved great success in single image super-resolution (SISR). However, existing state-of-the-art SISR techniques are designed like black boxes lacking transparency and interpretability.…

计算机视觉与模式识别 · 计算机科学 2020-11-24 Qian Ning , Weisheng Dong , Guangming Shi , Leida Li , Xin Li

Optimal symbol detection for multiple-input multiple-output (MIMO) systems is known to be an NP-hard problem. Conventional heuristic algorithms are either too complex to be practical or suffer from poor performance. Recently, several…

信息论 · 计算机科学 2020-02-11 Mathieu Goutay , Fayçal Ait Aoudia , Jakob Hoydis

Image denoising is an essential tool in computational photography. Standard denoising techniques, which use deep neural networks at their core, require pairs of clean and noisy images for its training. If we do not possess the clean…

图像与视频处理 · 电气工程与系统科学 2020-08-26 David Honzátko , Siavash A. Bigdeli , Engin Türetken , L. Andrea Dunbar

Recent advances in deep learning have led to significant improvements in single image super-resolution (SR) research. However, due to the amplification of noise during the upsampling steps, state-of-the-art methods often fail at…

计算机视觉与模式识别 · 计算机科学 2021-02-11 Angel Villar-Corrales , Franziska Schirrmacher , Christian Riess

This paper presents an innovative framework designed to train an image deblurring algorithm tailored to a specific camera device. This algorithm works by transforming a blurry input image, which is challenging to deblur, into another blurry…

计算机视觉与模式识别 · 计算机科学 2024-03-26 Bang-Dang Pham , Phong Tran , Anh Tran , Cuong Pham , Rang Nguyen , Minh Hoai

Symbol detection for Massive Multiple-Input Multiple-Output (MIMO) is a challenging problem for which traditional algorithms are either impractical or suffer from performance limitations. Several recently proposed learning-based approaches…

信号处理 · 电气工程与系统科学 2019-06-12 Mehrdad Khani , Mohammad Alizadeh , Jakob Hoydis , Phil Fleming

Deep image relighting allows photo enhancement by illumination-specific retouching without human effort and so it is getting much interest lately. Most of the existing popular methods available for relighting are run-time intensive and…

计算机视觉与模式识别 · 计算机科学 2021-07-14 Sourya Dipta Das , Nisarg A. Shah , Saikat Dutta

Optimization theory assisted algorithms have received great attention for precoding design in multiuser multiple-input multiple-output (MU-MIMO) systems. Although the resultant optimization algorithms are able to provide excellent…

信息论 · 计算机科学 2020-06-16 Qiyu Hu , Yunlong Cai , Qingjiang Shi , Kaidi Xu , Guanding Yu , Zhi Ding

Defocus deblurring is a challenging task due to the spatially varying nature of defocus blur. While deep learning approach shows great promise in solving image restoration problems, defocus deblurring demands accurate training data that…

图像与视频处理 · 电气工程与系统科学 2022-04-04 Lingyan Ruan , Bin Chen , Jizhou Li , Miuling Lam

Motion blur in videos captured by autonomous vehicles and robots can degrade their perception capability. In this work, we present a novel approach to video deblurring by fitting a deep network to the test video. Our key observation is that…

计算机视觉与模式识别 · 计算机科学 2021-03-09 Xuanchi Ren , Zian Qian , Qifeng Chen

Blind deblurring consists a long studied task, however the outcomes of generic methods are not effective in real world blurred images. Domain-specific methods for deblurring targeted object categories, e.g. text or faces, frequently…

计算机视觉与模式识别 · 计算机科学 2017-05-26 Grigorios G. Chrysos , Stefanos Zafeiriou

Deep neural network based methods are the state of the art in various image restoration problems. Standard supervised learning frameworks require a set of noisy measurement and clean image pairs for which a distance between the output of…

图像与视频处理 · 电气工程与系统科学 2021-03-31 Rihuan Ke , Carola-Bibiane Schönlieb

The task of image deblurring is a very ill-posed problem as both the image and the blur are unknown. Moreover, when pictures are taken in the wild, this task becomes even more challenging due to the blur varying spatially and the occlusions…

计算机视觉与模式识别 · 计算机科学 2017-08-30 Mehdi Noroozi , Paramanand Chandramouli , Paolo Favaro

Recently, image enhancement and restoration have become important applications on mobile devices, such as super-resolution and image deblurring. However, most state-of-the-art networks present extremely high computational complexity. This…

Single image denoising (SID) has achieved significant breakthroughs with the development of deep learning. However, the proposed methods are often accompanied by plenty of parameters, which greatly limits their application scenarios.…

计算机视觉与模式识别 · 计算机科学 2022-05-02 Juncheng Li , Hanhui Yang , Qiaosi Yi , Faming Fang , Guangwei Gao , Tieyong Zeng , Guixu Zhang

Deep learning-based methods have shown remarkable success for various image restoration tasks such as denoising and deblurring. The current state-of-the-art networks are relatively deep and utilize (variants of) self attention mechanisms.…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Youssef Mansour , Reinhard Heckel

Quantized massive multiple-input-multiple-output (MIMO) systems are gaining more interest due to their power efficiency. We present a new precoding technique to mitigate the multi-user interference and the quantization distortions in a…

信息论 · 计算机科学 2017-04-24 Hela Jedda , Amine Mezghani , Josef A. Nossek , A. Lee Swindlehurst

In conventional multi-user multiple-input multiple-output (MU-MIMO) systems with frequency division duplexing (FDD), channel acquisition and precoder optimization processes have been designed separately although they are highly coupled.…

信息论 · 计算机科学 2022-09-22 Jeonghyeon Jang , Hoon Lee , Il-Min Kim , Inkyu Lee

Blind single image deblurring has been a challenge over many decades due to the ill-posed nature of the problem. In this paper, we propose a single-frame blind deblurring solution with the aid of Laplacian filters. Utilized Residual Dense…

图像与视频处理 · 电气工程与系统科学 2020-09-18 Baran Ataman , Esin Guldogan