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Single image super-resolution (SISR) is a very popular topic nowadays, which has both research value and practical value. In daily life, we crop a large image into sub-images to do super-resolution and then merge them together. Although…

计算机视觉与模式识别 · 计算机科学 2019-07-31 Junyu , Wang , Rong Song

Super-resolution (SR) has achieved great success due to the development of deep convolutional neural networks (CNNs). However, as the depth and width of the networks increase, CNN-based SR methods have been faced with the challenge of…

图像与视频处理 · 电气工程与系统科学 2020-11-10 Parichehr Behjati , Pau Rodriguez , Armin Mehri , Isabelle Hupont , Jordi Gonzalez , Carles Fernandez Tena

Computed Tomography (CT) imaging technique is widely used in geological exploration, medical diagnosis and other fields. In practice, however, the resolution of CT image is usually limited by scanning devices and great expense. Super…

计算机视觉与模式识别 · 计算机科学 2020-01-29 Yukai Wang , Qizhi Teng , Xiaohai He , Junxi Feng , Tingrong Zhang

Omni-directional cameras have many advantages overconventional cameras in that they have a much wider field-of-view (FOV). Accordingly, several approaches have beenproposed recently to apply convolutional neural networks(CNNs) to…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Yeonkun Lee , Jaeseok Jeong , Jongseob Yun , Wonjune Cho , Kuk-Jin Yoon

360{\deg} images are widely available over the last few years. This paper proposes a new technique for single 360{\deg} image depth prediction under open environments. Depth prediction from a 360{\deg} single image is not easy for two…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Yuya Hasegawa , Ikehata Satoshi , Kiyoharu Aizawa

Deep convolutional neural networks have been demonstrated to be effective for SISR in recent years. On the one hand, residual connections and dense connections have been used widely to ease forward information and backward gradient flows to…

图像与视频处理 · 电气工程与系统科学 2022-10-31 Bin-Cheng Yang , Gangshan Wu

A low-resolution digital surface model (DSM) features distinctive attributes impacted by noise, sensor limitations and data acquisition conditions, which failed to be replicated using simple interpolation methods like bicubic. This causes…

图像与视频处理 · 电气工程与系统科学 2024-04-08 Daniel Panangian , Ksenia Bittner

Deep learning utilizing deep neural networks (DNNs) has achieved a lot of success recently in many important areas such as computer vision, natural language processing, and recommendation systems. The lack of convexity for DNNs has been…

机器学习 · 计算机科学 2022-06-14 Jingcheng Zhou , Wei Wei , Xing Li , Bowen Pang , Zhiming Zheng

Recently, deep neural networks (DNNs) have shown advantages in accelerating optimization algorithms. One approach is to unfold finite number of iterations of conventional optimization algorithms and to learn parameters in the algorithms.…

机器学习 · 计算机科学 2021-04-23 Byung Hyun Lee , Se Young Chun

For years, Single Image Super Resolution (SISR) has been an interesting and ill-posed problem in computer vision. The traditional super-resolution (SR) imaging approaches involve interpolation, reconstruction, and learning-based methods.…

计算机视觉与模式识别 · 计算机科学 2023-04-26 Karthick Prasad Gunasekaran

As virtual and augmented reality applications gain popularity, omnidirectional image (ODI) super-resolution has become increasingly important. Unlike 2D plain images that are formed on a plane, ODIs are projected onto spherical surfaces.…

图像与视频处理 · 电气工程与系统科学 2025-01-17 Cuixin Yang , Rongkang Dong , Jun Xiao , Cong Zhang , Kin-Man Lam , Fei Zhou , Guoping Qiu

As Super-Resolution (SR) has matured as a research topic, it has been applied to additional topics beyond image reconstruction. In particular, combining classification or object detection tasks with a super-resolution preprocessing stage…

计算机视觉与模式识别 · 计算机科学 2019-07-12 Evan Koester , Cem Safak Sahin

Recent years have witnessed the unprecedented success of deep convolutional neural networks (CNNs) in single image super-resolution (SISR). However, existing CNN-based SISR methods mostly assume that a low-resolution (LR) image is bicubicly…

计算机视觉与模式识别 · 计算机科学 2018-05-25 Kai Zhang , Wangmeng Zuo , Lei Zhang

With the advent of virtual reality technology, omnidirectional image (ODI) rescaling techniques are increasingly embraced for reducing transmitted and stored file sizes while preserving high image quality. Despite this progress, current ODI…

计算机视觉与模式识别 · 计算机科学 2024-04-26 Weiqi Li , Shijie Zhao , Bin Chen , Xinhua Cheng , Junlin Li , Li Zhang , Jian Zhang

2. In Section 3, we used some vague statements to affirm the training process of the neural network, which cannot support others to reproduce the results of the paper. In addition, this section does not show the difference between this…

最优化与控制 · 数学 2020-07-01 Liang Xue , Jie Liu , Guilin Wen , Hongxin Wang

The performance of deep learning based image super-resolution (SR) methods depend on how accurately the paired low and high resolution images for training characterize the sampling process of real cameras. Low and high resolution…

图像与视频处理 · 电气工程与系统科学 2022-06-22 Yanhui Guo , Xiaolin Wu , Xiao Shu

Channel reconstruction and generalization capability are of equal importance for developing channel estimation schemes within deep learning (DL) framework. In this paper, we exploit a novel DL-based scheme for efficient OFDM channel…

机器学习 · 计算机科学 2025-03-05 Jianqiao Chen , Nan Ma , Wenkai Liu , Xiaodong Xu , Ping Zhang

Super-resolution reconstruction (SRR) is a process aimed at enhancing spatial resolution of images, either from a single observation, based on the learned relation between low and high resolution, or from multiple images presenting the same…

计算机视觉与模式识别 · 计算机科学 2020-06-24 Michal Kawulok , Pawel Benecki , Szymon Piechaczek , Krzysztof Hrynczenko , Daniel Kostrzewa , Jakub Nalepa

Field-of-view and resolution trade-offs in X-Ray micro-computed tomography (micro-CT) imaging limit the characterization, analysis and model development of multi-scale porous systems. To this end, we developed an applied methodology…

地球物理 · 物理学 2022-03-17 Samuel J. Jackson , Yufu Niu , Sojwal Manoorkar , Peyman Mostaghimi , Ryan T. Armstrong

To overcome hardware limitations in commercially available depth sensors which result in low-resolution depth maps, depth map super-resolution (DMSR) is a practical and valuable computer vision task. DMSR requires upscaling a low-resolution…

计算机视觉与模式识别 · 计算机科学 2023-06-28 Ryan Peterson , Josiah Smith