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Lightweight neural networks for single-image super-resolution (SISR) tasks have made substantial breakthroughs in recent years. Compared to low-frequency information, high-frequency detail is much more difficult to reconstruct. Most SISR…

Image and Video Processing · Electrical Eng. & Systems 2023-03-22 Xiaotian Weng , Yi Chen , Zhichao Zheng , Yanhui Gu , Junsheng Zhou , Yudong Zhang

Neural radiance fields (NeRFs) are a widely accepted standard for synthesizing new 3D object views from a small number of base images. However, NeRFs have limited generalization properties, which means that we need to use significant…

Computer Vision and Pattern Recognition · Computer Science 2024-02-05 Paweł Batorski , Dawid Malarz , Marcin Przewięźlikowski , Marcin Mazur , Sławomir Tadeja , Przemysław Spurek

Neural radiance field (NeRF) has shown remarkable performance in generating photo-realistic novel views. Among recent NeRF related research, the approaches that involve the utilization of explicit structures like grids to manage features…

Computer Vision and Pattern Recognition · Computer Science 2023-09-07 Yongjae Lee , Li Yang , Deliang Fan

The success of deep learning has inspired recent interests in applying neural networks in statistical inference. In this paper, we investigate the use of deep neural networks for nonparametric regression with measurement errors. We propose…

Machine Learning · Statistics 2020-07-16 Zhirui Hu , Zheng Tracy Ke , Jun S Liu

As a successful deep model applied in image super-resolution (SR), the Super-Resolution Convolutional Neural Network (SRCNN) has demonstrated superior performance to the previous hand-crafted models either in speed and restoration quality.…

Computer Vision and Pattern Recognition · Computer Science 2016-08-02 Chao Dong , Chen Change Loy , Xiaoou Tang

Reusing features in deep networks through dense connectivity is an effective way to achieve high computational efficiency. The recent proposed CondenseNet has shown that this mechanism can be further improved if redundant features are…

Computer Vision and Pattern Recognition · Computer Science 2021-04-12 Le Yang , Haojun Jiang , Ruojin Cai , Yulin Wang , Shiji Song , Gao Huang , Qi Tian

There has been a growing interest in wideband spectrum sensing due to its applications in cognitive radios and electronic surveillance. To overcome the sampling rate bottleneck for wideband spectrum sensing, in this paper, we study the…

Information Theory · Computer Science 2019-10-17 Linxiao Yang , Jun Fang , Huiping Duan , Hongbin Li

Deep neural networks (DNNs) are so over-parametrized that recent research has found them to already contain a subnetwork with high accuracy at their randomly initialized state. Finding these subnetworks is a viable alternative training…

Computer Vision and Pattern Recognition · Computer Science 2021-11-25 Ángel López García-Arias , Masanori Hashimoto , Masato Motomura , Jaehoon Yu

Near-field channel estimation is a fundamental challenge in the sixth-generation (6G) wireless communication, where extremely large antenna arrays (ELAA) enable near-field communication (NFC) but introduce significant signal processing…

Signal Processing · Electrical Eng. & Systems 2025-05-21 Vu Tung Lam , Do Hai Son , Tran Thi Thuy Quynh , Le Trung Thanh

Deep neural networks (DNNs) play an important role in machine learning due to its outstanding performance compared to other alternatives. However, DNNs are not suitable for safety-critical applications since DNNs can be easily fooled by…

Machine Learning · Computer Science 2021-03-26 Zhixin Pan , Prabhat Mishra

Currently there is great interest in the utility of deep neural networks (DNNs) for the physical layer of radio frequency (RF) communications. In this manuscript, we describe a custom DNN specially designed to solve problems in the RF…

Signal Processing · Electrical Eng. & Systems 2021-09-23 Brian Shevitski , Yijing Watkins , Nicole Man , Michael Girard

Radio frequency interference (RFI) detection and excision are key steps in the data-processing pipeline of the Five-hundred-meter Aperture Spherical radio Telescope (FAST). Because of its high sensitivity and large data rate, FAST requires…

Instrumentation and Methods for Astrophysics · Physics 2020-06-14 Zhicheng Yang , Ce Yu , Jian Xiao , Bo Zhang

In practical application, the performance of recognition network usually decreases when being applied on super-resolution images. In this paper, we propose a feature-based recognition network combined with GAN (FGAN). Our network improves…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Jing Hu , Meiqi Zhang , Rui Zhang

Novel view synthesis has recently been revolutionized by learning neural radiance fields directly from sparse observations. However, rendering images with this new paradigm is slow due to the fact that an accurate quadrature of the volume…

Computer Vision and Pattern Recognition · Computer Science 2022-07-29 Andreas Kurz , Thomas Neff , Zhaoyang Lv , Michael Zollhöfer , Markus Steinberger

Neural radiance fields (NeRFs) produce state-of-the-art view synthesis results. However, they are slow to render, requiring hundreds of network evaluations per pixel to approximate a volume rendering integral. Baking NeRFs into explicit…

Computer Vision and Pattern Recognition · Computer Science 2022-05-11 Benjamin Attal , Jia-Bin Huang , Michael Zollhoefer , Johannes Kopf , Changil Kim

Deep neural networks (DNNs) have achieved significant success in a variety of real world applications, i.e., image classification. However, tons of parameters in the networks restrict the efficiency of neural networks due to the large model…

Machine Learning · Computer Science 2019-08-21 Yuzhe Ma , Ran Chen , Wei Li , Fanhua Shang , Wenjian Yu , Minsik Cho , Bei Yu

With the advancement of remote-sensed imaging large volumes of very high resolution land cover images can now be obtained. Automation of object recognition in these 2D images, however, is still a key issue. High intra-class variance and low…

Computer Vision and Pattern Recognition · Computer Science 2019-10-15 Vikas Agaradahalli Gurumurthy

In this paper, we focus on category-level 6D pose and size estimation from monocular RGB-D image. Previous methods suffer from inefficient category-level pose feature extraction which leads to low accuracy and inference speed. To tackle…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Wei Chen , Xi Jia , Hyung Jin Chang , Jinming Duan , Linlin Shen , Ales Leonardis

Convolution Neural Networks (CNN) have been extremely successful in solving intensive computer vision tasks. The convolutional filters used in CNNs have played a major role in this success, by extracting useful features from the inputs.…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Pravendra Singh , Pratik Mazumder , Vinay P. Namboodiri

Neural Radiance Fields (NeRF) have revolutionized the field of 3D visual representation by enabling highly realistic and detailed scene reconstructions from a sparse set of images. NeRF uses a volumetric functional representation that maps…

Multimedia · Computer Science 2024-10-28 Pedro Martin , António Rodrigues , João Ascenso , Maria Paula Queluz