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In this work, we explore the intersection of sparse coding theory and deep learning to enhance our understanding of feature extraction capabilities in advanced neural network architectures. We begin by introducing a novel class of Deep…

Machine Learning · Computer Science 2025-12-05 Jianfei Li , Han Feng , Ding-Xuan Zhou

This paper proposes to learn high-performance deep ConvNets with sparse neural connections, referred to as sparse ConvNets, for face recognition. The sparse ConvNets are learned in an iterative way, each time one additional layer is…

Computer Vision and Pattern Recognition · Computer Science 2015-12-08 Yi Sun , Xiaogang Wang , Xiaoou Tang

Deep Neural Network (DNN) based super-resolution algorithms have greatly improved the quality of the generated images. However, these algorithms often yield significant artifacts when dealing with real-world super-resolution problems due to…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Kangfu Mei , Shenglong Ye , Rui Huang

Since the first success of Dong et al., the deep-learning-based approach has become dominant in the field of single-image super-resolution. This replaces all the handcrafted image processing steps of traditional sparse-coding-based methods…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Shunta Maeda

Most current deep learning based single image super-resolution (SISR) methods focus on designing deeper / wider models to learn the non-linear mapping between low-resolution (LR) inputs and the high-resolution (HR) outputs from a large…

Image and Video Processing · Electrical Eng. & Systems 2020-05-05 Rao Muhammad Umer , Gian Luca Foresti , Christian Micheloni

Semantic segmentation requires per-pixel prediction for a given image. Typically, the output resolution of a segmentation network is severely reduced due to the downsampling operations in the CNN backbone. Most previous methods employ…

Computer Vision and Pattern Recognition · Computer Science 2021-08-02 Bowen Zhang , Yifan Liu , Zhi Tian , Chunhua Shen

Deep learning methods, in particular, trained Convolutional Neural Networks (CNN) have recently been shown to produce compelling results for single image Super-Resolution (SR). Invariably, a CNN is learned to map the Low Resolution (LR)…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Tiantong Guo , Hojjat S. Mousavi , Vishal Monga

Deep neural networks have exhibited promising performance in image super-resolution (SR) due to the power in learning the non-linear mapping from low-resolution (LR) images to high-resolution (HR) images. However, most deep learning methods…

Computer Vision and Pattern Recognition · Computer Science 2018-09-20 Yong Guo , Qi Chen , Jian Chen , Junzhou Huang , Yanwu Xu , Jiezhang Cao , Peilin Zhao , Mingkui Tan

In this paper, we propose a stereo radargrammetry method using deep learning from airborne Synthetic Aperture Radar (SAR) images. Deep learning-based methods are considered to suffer less from geometric image modulation, while there is no…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Tatsuya Sasayama , Shintaro Ito , Koichi Ito , Takafumi Aoki

We consider the problem in Synthetic Aperture RADAR (SAR) of identifying and classifying objects located on the ground by means of Convolutional Neural Networks (CNNs). Specifically, we adopt a single scattering approximation to classify…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Romina Gaburro , Patrick Healy , Shraddha Naidu , Clifford Nolan

In this paper, we describe the deep sparse coding network (SCN), a novel deep network that encodes intermediate representations with nonnegative sparse coding. The SCN is built upon a number of cascading bottleneck modules, where each…

Computer Vision and Pattern Recognition · Computer Science 2017-05-24 Xiaoxia Sun , Nasser M. Nasrabadi , Trac D. Tran

Semantic segmentation is an important branch of image processing and computer vision. With the popularity of deep learning, various convolutional neural networks have been proposed for pixel-level classification and segmentation tasks. In…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Xinyu Xu , Huazhen Liu , Tao Zhang , Huilin Xiong , Wenxian Yu

In this paper, we propose a new unsupervised feature learning framework, namely Deep Sparse Coding (DeepSC), that extends sparse coding to a multi-layer architecture for visual object recognition tasks. The main innovation of the framework…

Machine Learning · Computer Science 2013-12-23 Yunlong He , Koray Kavukcuoglu , Yun Wang , Arthur Szlam , Yanjun Qi

We propose a novel study of generating unseen arbitrary viewpoints for infrared imagery in the non-linear feature subspace . Current methods use synthetic images and often result in blurry and distorted outputs. Our approach on the contrary…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Maliha Arif , Abhijit Mahalanobis

The most of CNN based super-resolution (SR) methods assume that the degradation is known (\eg, bicubic). These methods will suffer a severe performance drop when the degradation is different from their assumption. Therefore, some approaches…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Bin Xia , Yapeng Tian , Yulun Zhang , Yucheng Hang , Wenming Yang , Qingmin Liao

In this paper, we proposed large selective kernel and sparse attention network (LSKSANet) for remote sensing image semantic segmentation. The LSKSANet is a lightweight network that effectively combines convolution with sparse attention…

Image and Video Processing · Electrical Eng. & Systems 2024-06-04 Miao Fu , Feng Gao , Ruzhuang Hua , Yanhai Gan , Xiaowei Zhou , Yang Zhou

Several recent works have addressed the ability of deep learning to disclose rich, hierarchical and discriminative models for the most diverse purposes. Specifically in the super-resolution field, Convolutional Neural Networks (CNNs) using…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Eduardo Ribeiro , Andreas Uhl , Fernando Alonso-Fernandez

Traditional radar imaging methods suffer from the problems of low resolution and poor noise suppression. We propose a new radar imaging method based on Self-supervised deep-learning-assisted compressed sensing (SS-DL-CS-Net). The original…

Image and Video Processing · Electrical Eng. & Systems 2022-08-09 Shaoyin Huang

Polarimetric Synthetic Aperture Radar (PolSAR) images are an important source of information. Speckle noise gives SAR images a granular appearance that makes interpretation and analysis hard tasks. A major issue is the assessment of…

Applications · Statistics 2019-05-01 M. G. Palacio , S. B. Ferrero , A. C. Frery

In many computer vision applications, obtaining images of high resolution in both the spatial and spectral domains are equally important. However, due to hardware limitations, one can only expect to acquire images of high resolution in…

Computer Vision and Pattern Recognition · Computer Science 2018-07-17 Ying Qu , Hairong Qi , Chiman Kwan