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Self-similarity techniques are booming in blind super-resolution (SR) due to accurate estimation of the degradation types involved in low-resolution images. However, high-dimensional matrix multiplication within self-similarity computation…

Computer Vision and Pattern Recognition · Computer Science 2024-08-02 Jiancong Feng , Yuan-Gen Wang , Mingjie Li , Fengchuang Xing

Generative DNNs are a powerful tool for image synthesis, but they are limited by their computational load. On the other hand, given a trained model and a task, e.g. faces generation within a range of characteristics, the output image…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Polina Karpikova , Radionova Ekaterina , Anastasia Yaschenko , Andrei Spiridonov , Leonid Kostyushko , Riccardo Fabbricatore , Aleksei Ivakhnenko

The channel attention mechanism is a useful technique widely employed in deep convolutional neural networks to boost the performance for image processing tasks, eg, image classification and image super-resolution. It is usually designed as…

Image and Video Processing · Electrical Eng. & Systems 2023-03-21 Yuxuan Shi , Lingxiao Yang , Wangpeng An , Xiantong Zhen , Liuqing Wang

Image reconstruction in the presence of severe degradation remains a challenging inverse problem, particularly in beam diagnostics for high-energy physics accelerators. As modern facilities demand precise detection of beam halo structures…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Francis Osswald , Mohammed Chahbaoui , Xinyi Liang

Convolutional Neural Networks (CNN) increase depth by stacking convolutional layers, and deeper network models perform better in image recognition. Empirical research shows that simply stacking convolutional layers does not make the network…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Rui-Yang Ju , Jen-Shiun Chiang , Chih-Chia Chen , Yu-Shian Lin

Classification of biological images is an important task with crucial application in many fields, such as cell phenotypes recognition, detection of cell organelles and histopathological classification, and it might help in early medical…

Computer Vision and Pattern Recognition · Computer Science 2020-11-25 Loris Nanni , Alessandra Lumini , Stefano Ghidoni , Gianluca Maguolo

In this paper we present ActiveStereoNet, the first deep learning solution for active stereo systems. Due to the lack of ground truth, our method is fully self-supervised, yet it produces precise depth with a subpixel precision of $1/30th$…

Computer Vision and Pattern Recognition · Computer Science 2018-07-18 Yinda Zhang , Sameh Khamis , Christoph Rhemann , Julien Valentin , Adarsh Kowdle , Vladimir Tankovich , Michael Schoenberg , Shahram Izadi , Thomas Funkhouser , Sean Fanello

Most existing sandstorm image enhancement methods are based on traditional theory and prior knowledge, which often restrict their applicability in real-world scenarios. In addition, these approaches often adopt a strategy of color…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Yazhong Si , Xulong Zhang , Fan Yang , Jianzong Wang , Ning Cheng , Jing Xiao

This paper proposes a new technique based on nonlinear Adaptive Median filter (AMF) for image restoration. Image denoising is a common procedure in digital image processing aiming at the removal of noise, which may corrupt an image during…

Computer Vision and Pattern Recognition · Computer Science 2010-04-28 T. K. Thivakaran , RM. Chandrasekaran

Suppressing the interference of atmospheric turbulence and obtaining observation data with a high spatial resolution is an issue to be solved urgently for ground observations. One way to solve this problem is to perform a statistical…

Instrumentation and Methods for Astrophysics · Physics 2022-07-04 Hui Liu , Zhenyu Jin , Yongyuan Xiang , Kaifan Ji

Image restoration is the task of aiming to obtain a high-quality image from a corrupt input image, such as deblurring and deraining. In image restoration, it is typically necessary to maintain a complex balance between spatial details and…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Hu Gao , Jing Yang , Ying Zhang , Ning Wang , Jingfan Yang , Depeng Dang

In many information processing systems, it may be desirable to ensure that any change of the input, whether by shifting or scaling, results in a corresponding change in the system response. While deep neural networks are gradually replacing…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Sébastien Herbreteau , Emmanuel Moebel , Charles Kervrann

In machine learning approach to image denoising a network is trained to recover a clean image from a noisy one. In this paper a novel structure is proposed based on training multiple specialized networks as opposed to existing structures…

Image and Video Processing · Electrical Eng. & Systems 2020-12-01 Seyed Mohsen Hosseini

In recent years novel activation functions have been proposed to improve the performance of neural networks, and they show superior performance compared to the ReLU counterpart. However, there are environments, where the availability of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-29 Ákos Utasi

We present a simple, effective, and general activation function we term ACON which learns to activate the neurons or not. Interestingly, we find Swish, the recent popular NAS-searched activation, can be interpreted as a smooth approximation…

Computer Vision and Pattern Recognition · Computer Science 2021-04-19 Ningning Ma , Xiangyu Zhang , Ming Liu , Jian Sun

Despite remarkable progress on visual recognition tasks, deep neural-nets still struggle to generalize well when training data is scarce or highly imbalanced, rendering them extremely vulnerable to real-world examples. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Shiran Zada , Itay Benou , Michal Irani

Multi-exposure High Dynamic Range (HDR) imaging is a challenging task when facing truncated texture and complex motion. Existing deep learning-based methods have achieved great success by either following the alignment and fusion pipeline…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Lingtong Kong , Bo Li , Yike Xiong , Hao Zhang , Hong Gu , Jinwei Chen

We describe a novel method for removing speckle (in wavelet domain) of unknown variance from SAR images. The me-thod is based on the following procedure: We apply 1) Bidimentional Discrete Wavelet Transform (DWT-2D) to the speckled image,…

Computer Vision and Pattern Recognition · Computer Science 2016-07-13 Mario Mastriani

Multi-Scale and U-shaped Networks are widely used in various image restoration problems, including deblurring. Keeping in mind the wide range of applications, we present a comparison of these architectures and their effects on image…

Computer Vision and Pattern Recognition · Computer Science 2023-12-13 Tanish Mittal , Preyansh Agrawal , Esha Pahwa , Aarya Makwana

Infrared images captured under turbulent conditions are degraded by complex geometric distortions and blur. We address infrared deturbulence as an image restoration task, proposing DparNet, a parameter-assisted multi-frame network with a…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Yi Lu , Yadong Wang , Xingbo Jiang , Xiangzhi Bai