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Efficiency of gradient propagation in intermediate layers of convolutional neural networks is of key importance for super-resolution task. To this end, we propose a deep architecture for single image super-resolution (SISR), which is built…

Image and Video Processing · Electrical Eng. & Systems 2022-01-31 Kuldeep Purohit , Srimanta Mandal , A. N. Rajagopalan

Limited by the cost and technology, the resolution of depth map collected by depth camera is often lower than that of its associated RGB camera. Although there have been many researches on RGB image super-resolution (SR), a major problem…

Computer Vision and Pattern Recognition · Computer Science 2020-11-25 Chuhua Xian , Kun Qian , Zitian Zhang , Charlie C. L. Wang

While single-image super-resolution (SISR) has attracted substantial interest in recent years, the proposed approaches are limited to learning image priors in order to add high frequency details. In contrast, multi-frame super-resolution…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Goutam Bhat , Martin Danelljan , Luc Van Gool , Radu Timofte

High resolution (HR) 3D images are widely used nowadays, such as medical images like Magnetic Resonance Imaging (MRI) and Computed Tomography (CT). However, segmentation of these 3D images remains a challenge due to their high spatial…

Image and Video Processing · Electrical Eng. & Systems 2023-07-11 Hongyi Wang , Lanfen Lin , Hongjie Hu , Qingqing Chen , Yinhao Li , Yutaro Iwamoto , Xian-Hua Han , Yen-Wei Chen , Ruofeng Tong

Multi-scale design has been considered in recent image super-resolution (SR) works to explore the hierarchical feature information. Existing multi-scale networks aim to build elaborate blocks or progressive architecture for restoration. In…

Image and Video Processing · Electrical Eng. & Systems 2023-05-04 Yuqing Liu , Xinfeng Zhang , Shanshe Wang , Siwei Ma , Wen Gao

Although numerous solutions have been proposed for image super-resolution, they are usually incompatible with low-power devices with many computational and memory constraints. In this paper, we address this problem by proposing a simple yet…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Long Sun , Jiangxin Dong , Jinhui Tang , Jinshan Pan

Depth super-resolution (DSR) aims to restore high-resolution (HR) depth from low-resolution (LR) one, where RGB image is often used to promote this task. Recent image guided DSR approaches mainly focus on spatial domain to rebuild depth…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Zhengxue Wang , Zhiqiang Yan , Jian Yang

Multi frame super-resolution(MFSR) achieves higher performance than single image super-resolution (SISR), because MFSR leverages abundant information from multiple frames. Recent MFSR approaches adapt the deformable convolution network…

Image and Video Processing · Electrical Eng. & Systems 2024-09-25 EungGu Kang , Byeonghun Lee , Sunghoon Im , Kyong Hwan Jin

Convolutional neural networks have been proven to be of great benefit for single-image super-resolution (SISR). However, previous works do not make full use of multi-scale features and ignore the inter-scale correlation between different…

Image and Video Processing · Electrical Eng. & Systems 2020-09-01 Juncheng Li , Faming Fang , Jiaqian Li , Kangfu Mei , Guixu Zhang

Deep learning-based super-resolution (SR) methods often perform pixel-wise computations uniformly across entire images, even in homogeneous regions where high-resolution refinement is redundant. We propose the Quadtree Diffusion Model…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Donglin Yang , Paul Vicol , Xiaojuan Qi , Renjie Liao , Xiaofan Zhang

The rapid development of deep learning (DL) has driven single image super-resolution (SR) into a new era. However, in most existing DL based image SR networks, the information flows are solely feedforward, and the high-level features cannot…

Computer Vision and Pattern Recognition · Computer Science 2019-07-11 Qilei Li , Zhen Li , Lu Lu , Gwanggil Jeon , Kai Liu , Xiaomin Yang

A very deep convolutional neural network (CNN) has recently achieved great success for image super-resolution (SR) and offered hierarchical features as well. However, most deep CNN based SR models do not make full use of the hierarchical…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Yulun Zhang , Yapeng Tian , Yu Kong , Bineng Zhong , Yun Fu

We introduce DRHDR, a Dual branch Residual Convolutional Neural Network for Multi-Bracket HDR Imaging. To address the challenges of fusing multiple brackets from dynamic scenes, we propose an efficient dual branch network that operates on…

Computer Vision and Pattern Recognition · Computer Science 2022-06-10 Juan Marín-Vega , Michael Sloth , Peter Schneider-Kamp , Richard Röttger

For collecting high-quality high-resolution (HR) MR image, we propose a novel image reconstruction network named IREM, which is trained on multiple low-resolution (LR) MR images and achieve an arbitrary up-sampling rate for HR image…

Image and Video Processing · Electrical Eng. & Systems 2021-06-30 Qing Wu , Yuwei Li , Lan Xu , Ruiming Feng , Hongjiang Wei , Qing Yang , Boliang Yu , Xiaozhao Liu , Jingyi Yu , Yuyao Zhang

Due to the powerful ability to encode image details and semantics, many lightweight dual-resolution networks have been proposed in recent years. However, most of them ignore the benefit of boundary information. This paper introduces a…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Linjie Wang , Quan Zhou , Chenfeng Jiang , Xiaofu Wu , Longin Jan Latecki

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

Small object detection is challenging because small objects do not contain detailed information and may even disappear in the deep network. Usually, feeding high-resolution images into a network can alleviate this issue. However, simply…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Ziming Liu , Guangyu Gao , Lin Sun , Zhiyuan Fang

In recent years, single image super-resolution (SISR) methods using deep convolution neural network (CNN) have achieved impressive results. Thanks to the powerful representation capabilities of the deep networks, numerous previous ways can…

Image and Video Processing · Electrical Eng. & Systems 2019-09-27 Zheng Hui , Xinbo Gao , Yunchu Yang , Xiumei Wang

Despite recent progress on semantic segmentation, there still exist huge challenges in medical ultra-resolution image segmentation. The methods based on multi-branch structure can make a good balance between computational burdens and…

Computer Vision and Pattern Recognition · Computer Science 2020-02-20 Tong Wu , Yuan Xie , Yanyun Qu , Bicheng Dai , Shuxin Chen

Balancing reconstruction quality versus model efficiency remains a critical challenge in lightweight single image super-resolution (SISR). Despite the prevalence of attention mechanisms in recent state-of-the-art SISR approaches that…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 M. Akin Yilmaz , Ahmet Bilican , A. Murat Tekalp
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