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Low-resolution image representation is a special form of sparse representation that retains only low-frequency information while discarding high-frequency components. This property reduces storage and transmission costs and benefits various…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Chenglong Bao , Tongyao Pang , Zuowei Shen , Dihan Zheng , Yihang Zou

We use machine learning to perform super-resolution analysis of grossly under-resolved turbulent flow field data to reconstruct the high-resolution flow field. Two machine-learning models are developed; namely the convolutional neural…

流体动力学 · 物理学 2019-05-08 Kai Fukami , Koji Fukagata , Kunihiko Taira

The block-based coding structure in the hybrid video coding framework inevitably introduces compression artifacts such as blocking, ringing, etc. To compensate for those artifacts, extensive filtering techniques were proposed in the loop of…

图像与视频处理 · 电气工程与系统科学 2021-05-05 Wei Jia , Li Li , Zhu Li , xiang zhang , Shan Liu

Convolutional neural networks have achieved a great success in the recent years. Although, the way to maximize the performance of the convolutional neural networks still in the beginning. Furthermore, the optimization of the size and the…

计算机视觉与模式识别 · 计算机科学 2017-06-21 Hussam Qassim , David Feinzimer , Abhishek Verma

One impressive advantage of convolutional neural networks (CNNs) is their ability to automatically learn feature representation from raw pixels, eliminating the need for hand-designed procedures. However, recent methods for single image…

计算机视觉与模式识别 · 计算机科学 2016-07-27 Yifan Wang , Lijun Wang , Hongyu Wang , Peihua Li

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…

图像与视频处理 · 电气工程与系统科学 2021-10-13 Wenbin Zou , Mingchao Jiang , Yunchen Zhang , Liang Chen , Zhiyong Lu , Yi Wu

Convolutional neural networks (CNNs) have allowed remarkable advances in single image super-resolution (SISR) over the last decade. Most SR methods based on CNNs have focused on achieving performance gains in terms of quality metrics, such…

计算机视觉与模式识别 · 计算机科学 2020-07-16 Wonkyung Lee , Junghyup Lee , Dohyung Kim , Bumsub Ham

Deep learning, e.g., convolutional neural networks (CNNs), has achieved great success in image processing and computer vision especially in high level vision applications such as recognition and understanding. However, it is rarely used to…

计算机视觉与模式识别 · 计算机科学 2017-08-03 Feng Jiang , Wen Tao , Shaohui Liu , Jie Ren , Xun Guo , Debin Zhao

Diffusion models (DMs) have demonstrated remarkable success in real-world image super-resolution (SR), yet their reliance on time-consuming multi-step sampling largely hinders their practical applications. While recent efforts have…

计算机视觉与模式识别 · 计算机科学 2026-05-13 Jiaqi Xu , Wenbo Li , Haoze Sun , Fan Li , Zhixin Wang , Long Peng , Jingjing Ren , Haoran Yang , Xiaowei Hu , Renjing Pei , Pheng-Ann Heng

High-resolution (HR) information of fluid flows, although preferable, is usually less accessible due to limited computational or experimental resources. In many cases, fluid data are generally sparse, incomplete, and possibly noisy. How to…

流体动力学 · 物理学 2021-07-20 Han Gao , Luning Sun , Jian-Xun Wang

Recent works on single-image super-resolution are concentrated on improving performance through enhancing spatial encoding between convolutional layers. In this paper, we focus on modeling the correlations between channels of convolutional…

计算机视觉与模式识别 · 计算机科学 2018-10-04 Kangfu Mei , Aiwen Jiang , Juncheng Li , Jihua Ye , Mingwen Wang

Recent studies have used deep residual convolutional neural networks (CNNs) for JPEG compression artifact reduction. This study proposes a scalable CNN called S-Net. Our approach effectively adjusts the network scale dynamically in a…

计算机视觉与模式识别 · 计算机科学 2019-07-24 Bolun Zheng , Rui Sun , Xiang Tian , Yaowu Chen

We introduce a novel sketch-to-image tool that aligns with the iterative refinement process of artists. Our tool lets users sketch blocking strokes to coarsely represent the placement and form of objects and detail strokes to refine their…

图形学 · 计算机科学 2024-10-28 Vishnu Sarukkai , Lu Yuan , Mia Tang , Maneesh Agrawala , Kayvon Fatahalian

We propose a general method to train a single convolutional neural network which is capable of switching image resolutions at inference. Thus the running speed can be selected to meet various computational resource limits. Networks trained…

计算机视觉与模式识别 · 计算机科学 2020-11-10 Yikai Wang , Fuchun Sun , Duo Li , Anbang Yao

In this paper, we propose an end-to-end mixed-resolution image compression framework with convolutional neural networks. Firstly, given one input image, feature description neural network (FDNN) is used to generate a new representation of…

计算机视觉与模式识别 · 计算机科学 2018-08-03 Lijun Zhao , Huihui Bai , Feng Li , Anhong Wang , Yao Zhao

Super-resolution is an ill-posed problem, since it allows for multiple predictions for a given low-resolution image. This fundamental fact is largely ignored by state-of-the-art deep learning based approaches. These methods instead train a…

计算机视觉与模式识别 · 计算机科学 2020-08-03 Andreas Lugmayr , Martin Danelljan , Luc Van Gool , Radu Timofte

Image inverse halftoning is a classic image restoration task, aiming to recover continuous-tone images from halftone images with only bilevel pixels. Because the halftone images lose much of the original image content, inverse halftoning is…

计算机视觉与模式识别 · 计算机科学 2023-05-30 Feiyu Li , Jun Yang

Convolutional neural networks (CNNs) have recently achieved great success in single-image super-resolution (SISR). However, these methods tend to produce over-smoothed outputs and miss some textural details. To solve these problems, we…

计算机视觉与模式识别 · 计算机科学 2018-10-26 Zhisheng Zhong , Tiancheng Shen , Yibo Yang , Zhouchen Lin , Chao Zhang

Convolutional Neural Network (CNN)-based filters have achieved significant performance in video artifacts reduction. However, the high complexity of existing methods makes it difficult to be applied in real usage. In this paper, a CNN-based…

图像与视频处理 · 电气工程与系统科学 2020-09-08 Chao Liu , Heming Sun , Jiro Katto , Xiaoyang Zeng , Yibo Fan

Super-resolution reconstruction techniques entail the utilization of software algorithms to transform one or more sets of low-resolution images captured from the same scene into high-resolution images. In recent years, considerable…

计算机视觉与模式识别 · 计算机科学 2024-08-02 Hao Yan , Zixiang Wang , Zhengjia Xu , Zhuoyue Wang , Zhizhong Wu , Ranran Lyu
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