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We consider the problem of high-dimensional light field reconstruction and develop a learning-based framework for spatial and angular super-resolution. Many current approaches either require disparity clues or restore the spatial and…

Image and Video Processing · Electrical Eng. & Systems 2020-09-18 Nan Meng , Hayden K. -H. So , Xing Sun , Edmund Y. Lam

Light field (LF) image super-resolution (SR) aims at reconstructing high-resolution LF images from their low-resolution counterparts. Although CNN-based methods have achieved remarkable performance in LF image SR, these methods cannot fully…

Computer Vision and Pattern Recognition · Computer Science 2022-01-31 Zhengyu Liang , Yingqian Wang , Longguang Wang , Jungang Yang , Shilin Zhou

Light field imaging has recently known a regain of interest due to the availability of practical light field capturing systems that offer a wide range of applications in the field of computer vision. However, capturing high-resolution light…

Computer Vision and Pattern Recognition · Computer Science 2018-01-16 Reuben A. Farrugia , Christine Guillemot

Discrete Wavelet Transform (DWT) has been widely explored to enhance the performance of image superresolution (SR). Despite some DWT-based methods improving SR by capturing fine-grained frequency signals, most existing approaches neglect…

Computer Vision and Pattern Recognition · Computer Science 2025-11-05 Peng Du , Hui Li , Han Xu , Paul Barom Jeon , Dongwook Lee , Daehyun Ji , Ran Yang , Feng Zhu

Image Super-Resolution (SR) aims to recover a high-resolution image from its low-resolution counterpart, which has been affected by a specific degradation process. This is achieved by enhancing detail and visual quality. Recent advancements…

Computer Vision and Pattern Recognition · Computer Science 2025-01-15 Debasish Dutta , Deepjyoti Chetia , Neeharika Sonowal , Sanjib Kr Kalita

Light field (LF) images containing information for multiple views have numerous applications, which can be severely affected by low-light imaging. Recent learning-based methods for low-light enhancement have some disadvantages, such as a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Shansi Zhang , Nan Meng , Edmund Y. Lam

Guided depth super-resolution (GDSR) is an essential topic in multi-modal image processing, which reconstructs high-resolution (HR) depth maps from low-resolution ones collected with suboptimal conditions with the help of HR RGB images of…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Zixiang Zhao , Jiangshe Zhang , Shuang Xu , Zudi Lin , Hanspeter Pfister

Light field (LF) image super-resolution (SR) is a challenging problem due to its inherent ill-posed nature, where a single low-resolution (LR) input LF image can correspond to multiple potential super-resolved outcomes. Despite this…

Image and Video Processing · Electrical Eng. & Systems 2023-11-29 Wentao Chao , Fuqing Duan , Xuechun Wang , Yingqian Wang , Guanghui Wang

Light field (LF) images acquired by hand-held devices usually suffer from low spatial resolution as the limited sampling resources have to be shared with the angular dimension. LF spatial super-resolution (SR) thus becomes an indispensable…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Jing Jin , Junhui Hou , Jie Chen , Sam Kwong

Recent years have witnessed the great advances of deep neural networks (DNNs) in light field (LF) image super-resolution (SR). However, existing DNN-based LF image SR methods are developed on a single fixed degradation (e.g., bicubic…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Yingqian Wang , Zhengyu Liang , Longguang Wang , Jungang Yang , Wei An , Yulan Guo

Transformer has achieved great success in computer vision, while how to split patches in an image remains a problem. Existing methods usually use a fixed-size patch embedding which might destroy the semantics of objects. To address this…

Computer Vision and Pattern Recognition · Computer Science 2021-08-02 Zhiyang Chen , Yousong Zhu , Chaoyang Zhao , Guosheng Hu , Wei Zeng , Jinqiao Wang , Ming Tang

Image super-resolution generation aims to generate a high-resolution image from its low-resolution image. However, more complex neural networks bring high computational costs and memory storage. It is still an active area for offering the…

Image and Video Processing · Electrical Eng. & Systems 2023-10-23 Neeraj Baghel , Shiv Ram Dubey , Satish Kumar Singh

We study on image super-resolution (SR), which aims to recover realistic textures from a low-resolution (LR) image. Recent progress has been made by taking high-resolution images as references (Ref), so that relevant textures can be…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Fuzhi Yang , Huan Yang , Jianlong Fu , Hongtao Lu , Baining Guo

The Image-Based Rendering (IBR) approach using Shearlet Transform (ST) is one of the most effective methods for Densely-Sampled Light Field (DSLF) reconstruction. The ST-based DSLF reconstruction typically relies on an iterative…

Multimedia · Computer Science 2020-03-20 Yuan Gao , Robert Bregovic , Reinhard Koch , Atanas Gotchev

Low-light image super-resolution (LLISR) is essential for restoring fine visual details and perceptual quality under insufficient illumination conditions with ubiquitous low-resolution devices. Although pioneer methods achieve high…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Ji-Xuan He , Jia-Cheng Zhao , Feng-Qi Cui , Jinyang Huang , Yang Liu , Sirui Zhao , Meng Li , Zhi Liu

Single-image super-resolution (SISR) typically focuses on restoring various degraded low-resolution (LR) images to a single high-resolution (HR) image. However, during SISR tasks, it is often challenging for models to simultaneously…

Image and Video Processing · Electrical Eng. & Systems 2023-11-10 Xin Wang , Jing-Ke Yan , Jing-Ye Cai , Jian-Hua Deng , Qin Qin , Yao Cheng

Existing convolutional neural networks (CNN) based image super-resolution (SR) methods have achieved impressive performance on bicubic kernel, which is not valid to handle unknown degradations in real-world applications. Recent blind SR…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Feng Li , Yixuan Wu , Huihui Bai , Weisi Lin , Runmin Cong , Yao Zhao

Hand-held light field cameras suffer from low spatial resolution due to the inherent spatio-angular tradeoff. In this paper, we propose a method to improve the spatial resolution of light field images with the aid of the Texture Transformer…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Javeria Shabbir , M. Zeshan Alam , M. Umair Mukati

Deep learning methods, in particular, trained Convolutional Neural Networks (CNN) have recently been shown to produce compelling results for single image Super-Resolution (SR). Invariably, a CNN is learned to map the Low Resolution (LR)…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Tiantong Guo , Hojjat S. Mousavi , Vishal Monga

Light field cameras have a wide range of uses due to their ability to simultaneously record light intensity and direction. The angular resolution of light fields is important for downstream tasks such as depth estimation, yet is often…

Computer Vision and Pattern Recognition · Computer Science 2023-11-15 Langqing Shi , Ping Zhou
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