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Seam carving is a representative content-aware image retargeting approach to adjust the size of an image while preserving its visually prominent content. To maintain visually important content, seam-carving algorithms first calculate the…

多媒体 · 计算机科学 2021-07-20 Seung-Hun Nam , Wonhyuk Ahn , In-Jae Yu , Myung-Joon Kwon , Minseok Son , Heung-Kyu Lee

The challenge of image generation has been effectively modeled as a problem of structure priors or transformation. However, existing models have unsatisfactory performance in understanding the global input image structures because of…

计算机视觉与模式识别 · 计算机科学 2023-10-26 Pourya Shamsolmoali , Masoumeh Zareapoor , Huiyu Zhou , Xuelong Li , Yue Lu

Deep-neural-network-based image reconstruction has demonstrated promising performance in medical imaging for under-sampled and low-dose scenarios. However, it requires large amount of memory and extensive time for the training. It is…

计算机视觉与模式识别 · 计算机科学 2019-06-12 Dufan Wu , Kyungsang Kim , Quanzheng Li

Recently, deep convolutional neural networks (CNNs) have been demonstrated remarkable progress on single image super-resolution. However, as the depth and width of the networks increase, CNN-based super-resolution methods have been faced…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Zheng Hui , Xiumei Wang , Xinbo Gao

We have developed a convolutional neural network (CNN) to reconstruct the shape of irregular rough particles from their interferometric images. The CNN is based on a UNET architecture with residual block modules. The database has been…

计算机视觉与模式识别 · 计算机科学 2024-08-08 Alexis Abad , Alexandre Poux , Alexis Boulet , Marc Brunel

Multimode fibers (MMFs) have the potential to carry complex images for endoscopy and related applications, but decoding the complex speckle patterns produced by mode-mixing and modal dispersion in MMFs is a serious challenge. Several groups…

图像与视频处理 · 电气工程与系统科学 2020-09-02 Changyan Zhu , Eng Aik Chan , You Wang , Weina Peng , Ruixiang Guo , Baile Zhang , Cesare Soci , Yidong Chong

In computer vision, convolutional networks (CNNs) often adopts pooling to enlarge receptive field which has the advantage of low computational complexity. However, pooling can cause information loss and thus is detrimental to further…

计算机视觉与模式识别 · 计算机科学 2019-07-09 Pengju Liu , Hongzhi Zhang , Wei Lian , Wangmeng Zuo

Joint image filters are used to transfer structural details from a guidance picture used as a prior to a target image, in tasks such as enhancing spatial resolution and suppressing noise. Previous methods based on convolutional neural…

计算机视觉与模式识别 · 计算机科学 2020-10-22 Beomjun Kim , Jean Ponce , Bumsub Ham

We introduce a novel method for reconstructing the projected matter distributions of galaxy clusters with weak-lensing (WL) data based on convolutional neural network (CNN). Training datasets are generated with ray-tracing through…

宇宙学与河外天体物理 · 物理学 2021-12-30 Sungwook E. Hong , Sangnam Park , M. James Jee , Dongsu Bak , Sangjun Cha

Compressive sensing (CS), aiming to reconstruct an image/signal from a small set of random measurements has attracted considerable attentions in recent years. Due to the high dimensionality of images, previous CS methods mainly work on…

计算机视觉与模式识别 · 计算机科学 2018-02-01 Xiaotong Lu , Weisheng Dong , Peiyao Wang , Guangming Shi , Xuemei Xie

In this paper, we propose a novel convolutional neural network (CNN) architecture considering both local and global features for image enhancement. Most conventional image enhancement methods, including Retinex-based methods, cannot restore…

图像与视频处理 · 电气工程与系统科学 2019-05-09 Yuma Kinoshita , Hitoshi Kiya

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

We present a computational imaging mode for large scale electron microscopy data, which retrieves a complex wave from noisy/sparse intensity recordings using a deep learning approach and subsequently reconstructs an image of the specimen…

材料科学 · 物理学 2022-02-28 Thomas Friedrich , Chu-Ping Yu , Johan Verbeek , Timothy Pennycook , Sandra Van Aert

Deep convolutional neural networks (DCNN) have been widely adopted for research on super resolution recently, however previous work focused mainly on stacking as many layers as possible in their model, in this paper, we present a new…

计算机视觉与模式识别 · 计算机科学 2018-04-18 Yiwen Huang , Ming Qin

Deep neural networks have demonstrated highly competitive performance in super-resolution (SR) for natural images by learning mappings from low-resolution (LR) to high-resolution (HR) images. However, hyperspectral super-resolution remains…

图像与视频处理 · 电气工程与系统科学 2025-05-02 Usman Muhammad , Jorma Laaksonen , Lyudmila Mihaylova

We report the development of deep learning coherent electron diffractive imaging at sub-angstrom resolution using convolutional neural networks (CNNs) trained with only simulated data. We experimentally demonstrate this method by applying…

The improvement of computed tomography (CT) image resolution is beneficial to the subsequent medical diagnosis, but it is usually limited by the scanning devices and great expense. Convolutional neural network (CNN)-based methods have…

医学物理 · 物理学 2019-03-26 Chao Tang , Wenkun Zhang , Ziheng Li , Ailong Cai , Linyuan Wang , Lei Li , Ningning Liang , Bin Yan

Most Deep Learning (DL) based Compressed Sensing (DCS) algorithms adopt a single neural network for signal reconstruction, and fail to jointly consider the influences of the sampling operation for reconstruction. In this paper, we propose…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Chunyan Zeng , Jiaxiang Ye , Zhifeng Wang , Nan Zhao , Minghu Wu

Cine Magnetic Resonance Imaging (MRI) allows for understanding of the heart's function and condition in a non-invasive manner. Undersampling of the $k$-space is employed to reduce the scan duration, thus increasing patient comfort and…

图像与视频处理 · 电气工程与系统科学 2024-02-13 Yuyang Xue , Yuning Du , Gianluca Carloni , Eva Pachetti , Connor Jordan , Sotirios A. Tsaftaris

Recently, deep learning has become much more popular in computer vision area. The Convolution Neural Network (CNN) has brought a breakthrough in images segmentation areas, especially, for medical images. In this regard, U-Net is the…

图像与视频处理 · 电气工程与系统科学 2020-06-02 Ange Lou , Shuyue Guan , Murray Loew