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Learning to capture dependencies between spatial positions is essential to many visual tasks, especially the dense labeling problems like scene parsing. Existing methods can effectively capture long-range dependencies with self-attention…

计算机视觉与模式识别 · 计算机科学 2021-01-12 Shaofei Huang , Si Liu , Tianrui Hui , Jizhong Han , Bo Li , Jiashi Feng , Shuicheng Yan

For image super-resolution (SR), bridging the gap between the performance on synthetic datasets and real-world degradation scenarios remains a challenge. This work introduces a novel "Low-Res Leads the Way" (LWay) training framework,…

图像与视频处理 · 电气工程与系统科学 2024-03-06 Haoyu Chen , Wenbo Li , Jinjin Gu , Jingjing Ren , Haoze Sun , Xueyi Zou , Zhensong Zhang , Youliang Yan , Lei Zhu

Currently, there are two popular approaches for addressing real-world image super-resolution problems: degradation-estimation-based and blind-based methods. However, degradation-estimation-based methods may be inaccurate in estimating the…

计算机视觉与模式识别 · 计算机科学 2023-05-31 Axi Niu , Kang Zhang , Trung X. Pham , Pei Wang , Jinqiu Sun , In So Kweon , Yanning Zhang

Despite substantial advances, single-image super-resolution (SISR) is always in a dilemma to reconstruct high-quality images with limited information from one input image, especially in realistic scenarios. In this paper, we establish a…

计算机视觉与模式识别 · 计算机科学 2023-09-12 Pengxu Wei , Yujing Sun , Xingbei Guo , Chang Liu , Jie Chen , Xiangyang Ji , Liang Lin

Improving the image resolution and acquisition speed of magnetic resonance imaging (MRI) is a challenging problem. There are mainly two strategies dealing with the speed-resolution trade-off: (1) $k$-space undersampling with high-resolution…

计算机视觉与模式识别 · 计算机科学 2021-04-14 Wenqi Huang , Sen Jia , Ziwen Ke , Zhuo-Xu Cui , Jing Cheng , Yanjie Zhu , Dong Liang

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…

计算机视觉与模式识别 · 计算机科学 2017-01-05 Ding Liu , Zhaowen Wang , Nasser Nasrabadi , Thomas Huang

In recent years, tons of research has been conducted on Single Image Super-Resolution (SISR). However, to the best of our knowledge, few of these studies are mainly focused on compressed images. A problem such as complicated compression…

图像与视频处理 · 电气工程与系统科学 2022-01-19 Agus Gunawan , Sultan Rizky Hikmawan Madjid

While lightweight ViT framework has made tremendous progress in image super-resolution, its uni-dimensional self-attention modeling, as well as homogeneous aggregation scheme, limit its effective receptive field (ERF) to include more…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Hang Wang , Xuanhong Chen , Bingbing Ni , Yutian Liu , Jinfan Liu

Video super-resolution (SR) aims at generating a sequence of high-resolution (HR) frames with plausible and temporally consistent details from their low-resolution (LR) counterparts. The key challenge for video SR lies in the effective…

计算机视觉与模式识别 · 计算机科学 2020-01-08 Longguang Wang , Yulan Guo , Li Liu , Zaiping Lin , Xinpu Deng , Wei An

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…

计算机视觉与模式识别 · 计算机科学 2024-02-29 Zhengxue Wang , Zhiqiang Yan , Jian Yang

The convolutional neural network model for optical flow estimation usually outputs a low-resolution(LR) optical flow field. To obtain the corresponding full image resolution,interpolation and variational approach are the most common…

计算机视觉与模式识别 · 计算机科学 2018-09-05 Liping Zhang , Zongqing Lu , Qingmin Liao

Recent advances in image super-resolution (SR) explored the power of deep learning to achieve a better reconstruction performance. However, the feedback mechanism, which commonly exists in human visual system, has not been fully exploited…

计算机视觉与模式识别 · 计算机科学 2019-07-01 Zhen Li , Jinglei Yang , Zheng Liu , Xiaomin Yang , Gwanggil Jeon , Wei Wu

Single image super-resolution (SISR) is a notoriously challenging ill-posed problem, which aims to obtain a high-resolution (HR) output from one of its low-resolution (LR) versions. To solve the SISR problem, recently powerful deep learning…

计算机视觉与模式识别 · 计算机科学 2019-07-15 Wenming Yang , Xuechen Zhang , Yapeng Tian , Wei Wang , Jing-Hao Xue

Facial expression recognition (FER) systems in low-resolution settings face significant challenges in accurately identifying expressions due to the loss of fine-grained facial details. This limitation is especially problematic for…

计算机视觉与模式识别 · 计算机科学 2025-02-17 Syed Sameen Ahmad Rizvi , Soham Kumar , Aryan Seth , Pratik Narang

Image restoration algorithms such as super resolution (SR) are indispensable pre-processing modules for object detection in degraded images. However, most of these algorithms assume the degradation is fixed and known a priori. When the real…

图像与视频处理 · 电气工程与系统科学 2022-01-10 Ziteng Cui , Yingying Zhu , Lin Gu , Guo-Jun Qi , Xiaoxiao Li , Peng Gao , Zenghui Zhang , Tatsuya Harada

Deep convolutional neural networks (CNNs) have recently achieved great success for single image super-resolution (SISR) task due to their powerful feature representation capabilities. The most recent deep learning based SISR methods focus…

图像与视频处理 · 电气工程与系统科学 2020-09-11 Rao Muhammad Umer , Gian Luca Foresti , Christian Micheloni

The aim of image restoration is to recover high-quality images from distorted ones. However, current methods usually focus on a single task (\emph{e.g.}, denoising, deblurring or super-resolution) which cannot address the needs of…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Cheng Zhang , Yu Zhu , Qingsen Yan , Jinqiu Sun , Yanning Zhang

Face Super-Resolution (SR) is a domain-specific super-resolution problem. The specific facial prior knowledge could be leveraged for better super-resolving face images. We present a novel deep end-to-end trainable Face Super-Resolution…

计算机视觉与模式识别 · 计算机科学 2017-11-30 Yu Chen , Ying Tai , Xiaoming Liu , Chunhua Shen , Jian Yang

Deep Neural Network (DNN)-based image reconstruction, despite many successes, often exhibits uneven fidelity between high and low spatial frequency bands. In this paper we propose the Learning Synthesis by DNN (LS-DNN) approach where two…

计算机视觉与模式识别 · 计算机科学 2018-11-21 Mo Deng , Shuai Li , George Barbastathis

Scattering and attenuation of light in no-homogeneous imaging media or inconsistent light intensity will cause insufficient contrast and color distortion in the collected images, which limits the developments such as vision-driven smart…

计算机视觉与模式识别 · 计算机科学 2024-02-07 Yuxu Lu , Dong Yang , Yuan Gao , Ryan Wen Liu , Jun Liu , Yu Guo