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We present NeRF-SR, a solution for high-resolution (HR) novel view synthesis with mostly low-resolution (LR) inputs. Our method is built upon Neural Radiance Fields (NeRF) that predicts per-point density and color with a multi-layer…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Chen Wang , Xian Wu , Yuan-Chen Guo , Song-Hai Zhang , Yu-Wing Tai , Shi-Min Hu

Despite significant progress toward super resolving more realistic images by deeper convolutional neural networks (CNNs), reconstructing fine and natural textures still remains a challenging problem. Recent works on single image super…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Mohammad Saeed Rad , Behzad Bozorgtabar , Claudiu Musat , Urs-Viktor Marti , Max Basler , Hazim Kemal Ekenel , Jean-Philippe Thiran

Convolutional Neural Networks (CNNs) have demonstrated great results for the single-image super-resolution (SISR) problem. Currently, most CNN algorithms promote deep and computationally expensive models to solve SISR. However, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2018-08-28 Vandit Jain , Prakhar Bansal , Abhinav Kumar Singh , Rajeev Srivastava

Single image super-resolution (SISR) is of great importance as a low-level computer vision task. The fast development of Generative Adversarial Network (GAN) based deep learning architectures realises an efficient and effective SISR to…

Image and Video Processing · Electrical Eng. & Systems 2019-01-14 Jin Zhu , Guang Yang , Pietro Lio

We propose a method for reconstructing a continuous light field of a target scene from a single observed image. Our method takes the best of two worlds: joint aperture-exposure coding for compressive light-field acquisition, and a neural…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Yuya Ishikawa , Keita Takahashi , Chihiro Tsutake , Toshiaki Fujii

Existing methods for single image super-resolution (SR) are typically evaluated with synthetic degradation models such as bicubic or Gaussian downsampling. In this paper, we investigate SR from the perspective of camera lenses, named as…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Chang Chen , Zhiwei Xiong , Xinmei Tian , Zheng-Jun Zha , Feng Wu

Standard single-image super-resolution (SR) upsamples and restores entire images. Yet several real-world applications require higher resolutions only in specific regions, such as license plates or faces, making the super-resolution of the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Bo Ji , Angela Yao

By developing sophisticated image priors or designing deep(er) architectures, a variety of image Super-Resolution (SR) approaches have been proposed recently and achieved very promising performance. A natural question that arises is whether…

Computer Vision and Pattern Recognition · Computer Science 2019-05-14 Junjun Jiang , Yi Yu , Zheng Wang , Suhua Tang , Ruimin Hu , Jiayi Ma

Recently, numerous algorithms have been developed to tackle the problem of light field super-resolution (LFSR), i.e., super-resolving low-resolution light fields to gain high-resolution views. Despite delivering encouraging results, these…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Shunzhou Wang , Tianfei Zhou , Yao Lu , Huijun Di

As an image sensing instrument, light field images can supply extra angular information compared with monocular images and have facilitated a wide range of measurement applications. Light field image capturing devices usually suffer from…

Image and Video Processing · Electrical Eng. & Systems 2021-08-29 Zexi Hu , Henry Wing Fung Yeung , Xiaoming Chen , Yuk Ying Chung , Haisheng Li

Single Image Super-Resolution (SISR) aims to generate a high-resolution (HR) image of a given low-resolution (LR) image. The most of existing convolutional neural network (CNN) based SISR methods usually take an assumption that a LR image…

Image and Video Processing · Electrical Eng. & Systems 2019-09-10 Rao Muhammad Umer , Gian Luca Foresti , Christian Micheloni

Single Image Super-Resolution (SISR) task refers to learn a mapping from low-resolution images to the corresponding high-resolution ones. This task is known to be extremely difficult since it is an ill-posed problem. Recently, Convolutional…

Computer Vision and Pattern Recognition · Computer Science 2020-01-29 Seyed Mehdi Ayyoubzadeh , Xiaolin Wu

A light field image captures scenes through its micro-lens array, providing a rich representation that encompasses spatial and angular information. While this richness comes at significant data redundancy, most existing methods tend to…

Image and Video Processing · Electrical Eng. & Systems 2026-02-19 Zeke Zexi Hu , Haodong Chen , Hui Ye , Xiaoming Chen , Vera Yuk Ying Chung , Yiran Shen , Weidong Cai

Image super-resolution (SR) is one of the vital image processing methods that improve the resolution of an image in the field of computer vision. In the last two decades, significant progress has been made in the field of super-resolution,…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Syed Muhammad Arsalan Bashir , Yi Wang , Mahrukh Khan , Yilong Niu

We propose a new approach for the image super-resolution (SR) task that progressively restores a high-resolution (HR) image from an input low-resolution (LR) image on the basis of a neural ordinary differential equation. In particular, we…

Image and Video Processing · Electrical Eng. & Systems 2022-01-25 Seobin Park , Tae Hyun Kim

Single image super resolution is a very important computer vision task, with a wide range of applications. In recent years, the depth of the super-resolution model has been constantly increasing, but with a small increase in performance, it…

Computer Vision and Pattern Recognition · Computer Science 2018-02-01 Xi Cheng , Xiang Li , Ying Tai , Jian Yang

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

We present a fast and accurate method for dense depth reconstruction from sparsely sampled light fields obtained using a synchronized camera array. In our method, the source images are over-segmented into non-overlapping compact superpixels…

Image and Video Processing · Electrical Eng. & Systems 2018-12-18 Aleksandra Chuchvara , Attila Barsi , Atanas Gotchev

Hyperspectral images super-resolution aims to improve the spatial resolution, yet its performance is often limited at high-resolution ratios. The recent adoption of high-resolution reference images for super-resolution is driven by the poor…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Yingkai Zhang , Zeqiang Lai , Tao Zhang , Ying Fu , Chenghu Zhou

Single image super-resolution (SR) is an established pixel-level vision task aimed at reconstructing a high-resolution image from its degraded low-resolution counterpart. Despite the notable advancements achieved by leveraging deep neural…

Image and Video Processing · Electrical Eng. & Systems 2024-05-28 Shijie Liu , Kang Yan , Feiwei Qin , Changmiao Wang , Ruiquan Ge , Kai Zhang , Jie Huang , Yong Peng , Jin Cao
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