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Single image super-resolution (SISR) aims to reconstruct a high-resolution image from its low-resolution observation. Recent deep learning-based SISR models show high performance at the expense of increased computational costs, limiting…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Hongjae Lee , Jun-Sang Yoo , Seung-Won Jung

Deep Convolutional Neural Network (DCNN) and Transformer have achieved remarkable successes in image recognition. However, their performance in fine-grained image recognition is still difficult to meet the requirements of actual needs. This…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Chaorong Li , Malu Zhang , Wei Huang , Fengqing Qin , Anping Zeng , Yuanyuan Huang

Single image super-resolution (SR) is extremely difficult if the upscaling factors of image pairs are unknown and different from each other, which is common in real image SR. To tackle the difficulty, we develop two multi-scale deep neural…

Computer Vision and Pattern Recognition · Computer Science 2019-04-25 Shangqi Gao , Xiahai Zhuang

Learning based single image super resolution (SISR) task is well investigated in 2D images. However, SISR for 3D Magnetics Resonance Images (MRI) is more challenging compared to 2D, mainly due to the increased number of neural network…

Image and Video Processing · Electrical Eng. & Systems 2023-03-27 Qi Wang , Lucas Mahler , Julius Steiglechner , Florian Birk , Klaus Scheffler , Gabriele Lohmann

Most existing face image Super-Resolution (SR) methods assume that the Low-Resolution (LR) images were artificially downsampled from High-Resolution (HR) images with bicubic interpolation. This operation changes the natural image…

Computer Vision and Pattern Recognition · Computer Science 2021-02-08 Andreas Aakerberg , Kamal Nasrollahi , Thomas B. Moeslund

In this work, we introduce Gradient Siamese Network (GSN) for image quality assessment. The proposed method is skilled in capturing the gradient features between distorted images and reference images in full-reference image quality…

Image and Video Processing · Electrical Eng. & Systems 2022-08-09 Heng Cong , Lingzhi Fu , Rongyu Zhang , Yusheng Zhang , Hao Wang , Jiarong He , Jin Gao

Deep neural networks have greatly promoted the performance of single image super-resolution (SISR). Conventional methods still resort to restoring the single high-resolution (HR) solution only based on the input of image modality. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Chenxi Ma , Bo Yan , Qing Lin , Weimin Tan , Siming Chen

Recently, Convolutional Neural Networks (CNN) based image super-resolution (SR) have shown significant success in the literature. However, these methods are implemented as single-path stream to enrich feature maps from the input for the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-27 Feng Li , Runming Cong , Huihui Bai , Yifan He

Single Image Super-Resolution (SISR) is a vital technique for improving the visual quality of low-resolution images. While recent deep learning models have made significant advancements in SISR, they often encounter computational challenges…

Image and Video Processing · Electrical Eng. & Systems 2024-10-29 Chongxiao Liu

Single image super-resolution (SR) is an ill-posed problem which aims to recover high-resolution (HR) images from their low-resolution (LR) observations. The crux of this problem lies in learning the complex mapping between low-resolution…

Computer Vision and Pattern Recognition · Computer Science 2017-01-05 Ding Liu , Zhaowen Wang , Nasser Nasrabadi , Thomas Huang

Efficient single-image super-resolution (SISR) requires balancing reconstruction fidelity, model compactness, and robustness under low-bit deployment, which is especially challenging for x3 SR. We present a deployment-oriented quantized…

Computer Vision and Pattern Recognition · Computer Science 2026-04-23 Pham Phuong Nam Nguyen , Nam Tien Le , Thi Kim Trang Vo , Nhu Tinh Anh Nguyen

High-resolution (HR) images are usually downscaled to low-resolution (LR) ones for better display and afterward upscaled back to the original size to recover details. Recent work in image rescaling formulates downscaling and upscaling as a…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Jinhai Yang , Mengxi Guo , Shijie Zhao , Junlin Li , Li Zhang

The presence of residual and dense neural networks which greatly promotes the development of image Super-Resolution(SR) have witnessed a lot of impressive results. Depending on our observation, although more layers and connections could…

Image and Video Processing · Electrical Eng. & Systems 2020-02-21 Yuan Ma , Kewen Liu , Hongxia Xiong , Panpan Fang , Xiaojun Li , Yalei Chen , Chaoyang Liu

As a highly ill-posed issue, single image super-resolution (SISR) has been widely investigated in recent years. The main task of SISR is to recover the information loss caused by the degradation procedure. According to the Nyquist sampling…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Yuqing Liu , Qi Jia , Jian Zhang , Xin Fan , Shanshe Wang , Siwei Ma , Wen Gao

With the availability of commercial Light Field (LF) cameras, LF imaging has emerged as an up and coming technology in computational photography. However, the spatial resolution is significantly constrained in commercial microlens based LF…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Aupendu Kar , Suresh Nehra , Jayanta Mukhopadhyay , Prabir Kumar Biswas

Stereo Image Super-Resolution (stereoSR) has attracted significant attention in recent years due to the extensive deployment of dual cameras in mobile phones, autonomous vehicles and robots. In this work, we propose a new StereoSR method,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Ke Chen , Liangyan Li , Huan Liu , Yunzhe Li , Congling Tang , Jun Chen

We propose an image super resolution(ISR) method using generative adversarial networks (GANs) that takes a low resolution input fundus image and generates a high resolution super resolved (SR) image upto scaling factor of $16$. This…

Computer Vision and Pattern Recognition · Computer Science 2018-05-22 Dwarikanath Mahapatra , Behzad Bozorgtabar

Recently, lightweight methods for single image super-resolution (SISR) have gained significant popularity and achieved impressive performance due to limited hardware resources. These methods demonstrate that adopting residual feature…

Image and Video Processing · Electrical Eng. & Systems 2024-10-15 Weifeng Cao , Xiaoyan Lei , Jun Shi , Wanyong Liang , Jie Liu , Zongfei Bai

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

Real-world image super-resolution aims to recover high-quality images from complex and unknown real-world degradations. However, existing generative Real-ISR methods largely inherit the dense latent representations and quadratic-cost global…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Bingtian Qiao , Yue Shi , Yingjie Zhou , Yong Guo , Guangtao Zhai , Jiezhang Cao