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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

Plenoptic cameras offer a cost effective solution to capture light fields by multiplexing multiple views on a single image sensor. However, the high angular resolution is achieved at the expense of reducing the spatial resolution of each…

Computer Vision and Pattern Recognition · Computer Science 2018-09-28 Reuben A. Farrugia , C. Guillemot

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

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

Image and Video Processing · Electrical Eng. & Systems 2021-10-11 Jing Jin , Junhui Hou , Zhiyu Zhu , Jie Chen , Sam Kwong

Light field (LF) imaging captures both angular and spatial light distributions, enabling advanced photographic techniques. However, micro-lens array (MLA)- based cameras face a spatial-angular resolution tradeoff due to a single shared…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Javeria Shabbir , Muhammad Zeshan. Alam , M. Umair Mukati

Recent years have seen significant developments in the field of License Plate Recognition (LPR) through the integration of deep learning techniques and the increasing availability of training data. Nevertheless, reconstructing license…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Valfride Nascimento , Rayson Laroca , Jorge de A. Lambert , William Robson Schwartz , David Menotti

Single image super-resolution (SISR) deals with a fundamental problem of upsampling a low-resolution (LR) image to its high-resolution (HR) version. Last few years have witnessed impressive progress propelled by deep learning methods.…

Computer Vision and Pattern Recognition · Computer Science 2021-05-24 Wenbo Li , Kun Zhou , Lu Qi , Nianjuan Jiang , Jiangbo Lu , Jiaya Jia

Light field (LF) cameras record both intensity and directions of light rays, and capture scenes from a number of viewpoints. Both information within each perspective (i.e., spatial information) and among different perspectives (i.e.,…

Image and Video Processing · Electrical Eng. & Systems 2020-06-05 Yingqian Wang , Longguang Wang , Jungang Yang , Wei An , Jingyi Yu , Yulan Guo

Single image super-resolution (SISR) is the process of obtaining one high-resolution version of a low-resolution image by increasing the number of pixels per unit area. This method has been actively investigated by the research community,…

Image and Video Processing · Electrical Eng. & Systems 2022-10-11 George Corrêa de Araújo , Helio Pedrini

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

In the recent years impressive advances were made for single image super-resolution. Deep learning is behind a big part of this success. Deep(er) architecture design and external priors modeling are the key ingredients. The internal…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Yudong Liang , Radu Timofte , Jinjun Wang , Yihong Gong , Nanning Zheng

Light field imaging extends the traditional photography by capturing both spatial and angular distribution of light, which enables new capabilities, including post-capture refocusing, post-capture aperture control, and depth estimation from…

Computer Vision and Pattern Recognition · Computer Science 2018-03-14 M. Shahzeb Khan Gul , Bahadir K. Gunturk

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

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

Light field cameras capture the 3D information in a scene with a single exposure. This special feature makes light field cameras very appealing for a variety of applications: from post-capture refocus, to depth estimation and image-based…

Computer Vision and Pattern Recognition · Computer Science 2018-08-01 Mattia Rossi , Pascal Frossard

Despite convolutional network-based methods have boosted the performance of single image super-resolution (SISR), the huge computation costs restrict their practical applicability. In this paper, we develop a computation efficient yet…

Computer Vision and Pattern Recognition · Computer Science 2020-11-16 Xuehui Wang , Qing Wang , Yuzhi Zhao , Junchi Yan , Lei Fan , Long Chen

Capturing different intensity and directions of light rays at the same scene Light field (LF) can encode the 3D scene cues into a 4D LF image which has a wide range of applications (i.e. post-capture refocusing and depth sensing). LF image…

Image and Video Processing · Electrical Eng. & Systems 2024-09-27 Zhongxin Yu , Liang Chen , Zhiyun Zeng , Kunping Yang , Shaofei Luo , Shaorui Chen , Cheng Zhong

Light field (LF) cameras can record scenes from multiple perspectives, and thus introduce beneficial angular information for image super-resolution (SR). However, it is challenging to incorporate angular information due to disparities among…

Image and Video Processing · Electrical Eng. & Systems 2020-12-30 Yingqian Wang , Jungang Yang , Longguang Wang , Xinyi Ying , Tianhao Wu , Wei An , Yulan Guo

Transformer architectures prominently lead single-image super-resolution (SISR) benchmarks, reconstructing high-resolution (HR) images from their low-resolution (LR) counterparts. Their strong representative power, however, comes with a…

Image and Video Processing · Electrical Eng. & Systems 2025-04-01 Björn Möller , Lucas Görnhardt , Tim Fingscheidt

Hand-held light field (LF) cameras often exhibit low spatial resolution due to the inherent trade-off between spatial and angular dimensions. Existing supervised learning-based LF spatial super-resolution (SR) methods, which rely on…

Image and Video Processing · Electrical Eng. & Systems 2025-12-09 Jianxin Lei , Dongze Wu , Chengcai Xu , Hongcheng Gu , Guangquan Zhou , Junhui Hou , Ping Zhou
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