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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…

Computer Vision and Pattern Recognition · Computer Science 2018-05-25 Kai Zhang , Wangmeng Zuo , Lei Zhang

Single image super-resolution (SISR) is a notoriously challenging ill-posed problem, which aims to obtain a high-resolution (HR) output from one of its low-resolution (LR) versions. To solve the SISR problem, recently powerful deep learning…

Computer Vision and Pattern Recognition · Computer Science 2019-07-15 Wenming Yang , Xuechen Zhang , Yapeng Tian , Wei Wang , Jing-Hao Xue

The hyperspectral image (HSI) has been widely used in many applications due to its fruitful spectral information. However, the limitation of imaging sensors has reduced its spatial resolution that causes detail loss. One solution is to fuse…

Image and Video Processing · Electrical Eng. & Systems 2022-05-04 Shuangliang Li , Yugang Tian , Hao Xia , Qingwei Liu

Recently, deep learning based single image super-resolution(SR) approaches have achieved great development. The state-of-the-art SR methods usually adopt a feed-forward pipeline to establish a non-linear mapping between low-res(LR) and…

Computer Vision and Pattern Recognition · Computer Science 2019-05-02 Jinghui Qin , Ziwei Xie , Yukai Shi , Wushao Wen

Super-resolution (SR) and landmark localization of tiny faces are highly correlated tasks. On the one hand, landmark localization could obtain higher accuracy with faces of high-resolution (HR). On the other hand, face SR would benefit from…

Computer Vision and Pattern Recognition · Computer Science 2019-11-21 Yu Yin , Joseph P. Robinson , Yulun Zhang , Yun Fu

There are shadow and highlight regions in a low dynamic range (LDR) image which is captured from a high dynamic range (HDR) scene. It is an ill-posed problem to restore the saturated regions of the LDR image. In this paper, the saturated…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Chaobing Zheng , Zhengguo Li , Shiqian Wu

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…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Junyu , Wang , Rong Song

Medical Hyperspectral Imaging (MHSI) has emerged as a promising tool for enhanced disease diagnosis, particularly in computational pathology, offering rich spectral information that aids in identifying subtle biochemical properties of…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Qing Zhang , Guoquan Pei , Yan Wang

Hyperspectral imaging (HSI) has become a key technology for non-invasive quality evaluation in various fields, offering detailed insights through spatial and spectral data. Despite its efficacy, the complexity and high cost of HSI systems…

Image and Video Processing · Electrical Eng. & Systems 2024-06-04 Md. Toukir Ahmed , Arthur Villordon , Mohammed Kamruzzaman

High dynamic range (HDR) imaging combines multiple images with different exposure times into a single high-quality image. The image signal processing pipeline (ISP) is a core component in digital cameras to perform these operations. It…

Image and Video Processing · Electrical Eng. & Systems 2021-10-05 Prashant Chaudhari , Franziska Schirrmacher , Andreas Maier , Christian Riess , Thomas Köhler

In this paper, we propose a novel approach to hyperspectral image super-resolution by modeling the global spatial-and-spectral correlation and local smoothness properties over hyperspectral images. Specifically, we utilize the tensor…

Computer Vision and Pattern Recognition · Computer Science 2016-01-26 Shiying He , Haiwei Zhou , Yao Wang , Wenfei Cao , Zhi Han

Fusing a low resolution (LR) mosaiced hyperspectral image (HSI) with a high resolution (HR) panchromatic (PAN) image offers a promising avenue for video-rate HR-HSI imaging via single-shot acquisition, yet its severely ill-posed nature…

Computer Vision and Pattern Recognition · Computer Science 2026-04-23 Peiming Luo , Nan Wang , Litong Liu , Jiahan Huang , Chenxu Wu , Renwei Dian , Junming Hou

Methods based on convolutional neural network (CNN) have demonstrated tremendous improvements on single image super-resolution. However, the previous methods mainly restore images from one single area in the low resolution (LR) input, which…

Computer Vision and Pattern Recognition · Computer Science 2017-05-16 Xiaoyi Jia , Xiangmin Xu , Bolun Cai , Kailing Guo

Dimensionality reduction (DR) methods have attracted extensive attention to provide discriminative information and reduce the computational burden of the hyperspectral image (HSI) classification. However, the DR methods face many challenges…

Computer Vision and Pattern Recognition · Computer Science 2018-12-20 Ramanarayan Mohanty , S L Happy , Aurobinda Routray

High Resolution (HR) medical images provide rich anatomical structure details to facilitate early and accurate diagnosis. In MRI, restricted by hardware capacity, scan time, and patient cooperation ability, isotropic 3D HR image acquisition…

Image and Video Processing · Electrical Eng. & Systems 2022-12-01 Qing Wu , Yuwei Li , Yawen Sun , Yan Zhou , Hongjiang Wei , Jingyi Yu , Yuyao Zhang

To realize high-accuracy classification of high spatial resolution (HSR) images, this letter proposes a new multi-feature fusion-based scene classification framework (MF2SCF) by fusing local, global, and color features of HSR images.…

Image and Video Processing · Electrical Eng. & Systems 2021-05-25 Zhengrui Huang

Hyperspectral images (HSIs) are inevitably degraded by a mixture of various types of noise, such as Gaussian noise, impulse noise, stripe noise, and dead pixels, which greatly limits the subsequent applications. Although various denoising…

Image and Video Processing · Electrical Eng. & Systems 2024-01-12 Dongyi Li , Dong Chu , Xiaobin Guan , Wei He , Huanfeng Shen

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…

Image and Video Processing · Electrical Eng. & Systems 2022-06-22 Yanhui Guo , Xiaolin Wu , Xiao Shu

Hyperspectral imaging (HSI) has recently emerged as a promising tool for many agricultural applications; however, the technology cannot be directly used in a real-time system due to the extensive time needed to process large volumes of…

Computer Vision and Pattern Recognition · Computer Science 2024-08-01 Md. Toukir Ahmed , Ocean Monjur , Mohammed Kamruzzaman

Denoising is a crucial step for hyperspectral image (HSI) applications. Though witnessing the great power of deep learning, existing HSI denoising methods suffer from limitations in capturing the non-local self-similarity. Transformers have…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Miaoyu Li , Ji Liu , Ying Fu , Yulun Zhang , Dejing Dou