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Deep convolutional networks have attracted great attention in image restoration and enhancement. Generally, restoration quality has been improved by building more and more convolutional block. However, these methods mostly learn a specific…

Computer Vision and Pattern Recognition · Computer Science 2021-05-21 Yukai Shi , Jinghui Qin

Content-Based Image Retrieval based on local features is computationally expensive because of the complexity of both extraction and matching of local feature. On one hand, the cost for extracting, representing, and comparing local visual…

Computer Vision and Pattern Recognition · Computer Science 2017-03-03 Giuseppe Amato , Fabrizio Falchi , Lucia Vadicamo

In this paper, we address the problem of image retrieval by learning images representation based on the activations of a Convolutional Neural Network. We present an end-to-end trainable network architecture that exploits a novel multi-scale…

Computer Vision and Pattern Recognition · Computer Science 2020-04-27 Federico Vaccaro , Marco Bertini , Tiberio Uricchio , Alberto Del Bimbo

Remote Sensing Image Retrieval remains a challenging topic due to the special nature of Remote Sensing Imagery. Such images contain various different semantic objects, which clearly complicates the retrieval task. In this paper, we present…

Computer Vision and Pattern Recognition · Computer Science 2019-03-25 Raffaele Imbriaco , Clint Sebastian , Egor Bondarev , Peter H. N. de With

The convolution layer has been the dominant feature extractor in computer vision for years. However, the spatial aggregation in convolution is basically a pattern matching process that applies fixed filters which are inefficient at modeling…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Han Hu , Zheng Zhang , Zhenda Xie , Stephen Lin

We propose a novel method of deep spatial matching (DSM) for image retrieval. Initial ranking is based on image descriptors extracted from convolutional neural network activations by global pooling, as in recent state-of-the-art work.…

Computer Vision and Pattern Recognition · Computer Science 2019-11-19 Oriane Siméoni , Yannis Avrithis , Ondrej Chum

This paper introduces a concept of layer aggregation to describe how information from previous layers can be reused to better extract features at the current layer. While DenseNet is a typical example of the layer aggregation mechanism, its…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Jingyu Zhao , Yanwen Fang , Guodong Li

We propose a simple and straightforward way of creating powerful image representations via cross-dimensional weighting and aggregation of deep convolutional neural network layer outputs. We first present a generalized framework that…

Computer Vision and Pattern Recognition · Computer Science 2016-08-02 Yannis Kalantidis , Clayton Mellina , Simon Osindero

This paper introduces a family of local feature aggregation functions and a novel method to estimate their parameters, such that they generate optimal representations for classification (or any task that can be expressed as a cost function…

Machine Learning · Computer Science 2017-06-28 Angelos Katharopoulos , Despoina Paschalidou , Christos Diou , Anastasios Delopoulos

Convolutional Neural Networks has been implemented in many complex machine learning takes such as image classification, object identification, autonomous vehicle and robotic vision tasks. However, ConvNet architecture efficiency and…

Computer Vision and Pattern Recognition · Computer Science 2018-01-08 Pushparaja Murugan

The use of semantic segmentation for masking and cropping input images has proven to be a significant aid in medical imaging classification tasks by decreasing the noise and variance of the training dataset. However, implementing this…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Kaiyang Cheng , Claudia Iriondo , Francesco Calivá , Justin Krogue , Sharmila Majumdar , Valentina Pedoia

Evolutionary computation methods have been successfully applied to neural networks since two decades ago, while those methods cannot scale well to the modern deep neural networks due to the complicated architectures and large quantities of…

Neural and Evolutionary Computing · Computer Science 2019-03-12 Yanan Sun , Bing Xue , Mengjie Zhang , Gary G. Yen

Recently data-driven image inpainting methods have made inspiring progress, impacting fundamental image editing tasks such as object removal and damaged image repairing. These methods are more effective than classic approaches, however, due…

Computer Vision and Pattern Recognition · Computer Science 2020-05-21 Zili Yi , Qiang Tang , Shekoofeh Azizi , Daesik Jang , Zhan Xu

Recently, deep learning approaches have been extensively investigated to reconstruct images from accelerated magnetic resonance image (MRI) acquisition. Although these approaches provide significant performance gain compared to compressed…

Computer Vision and Pattern Recognition · Computer Science 2020-10-28 Eunju Cha , Gyutaek Oh , Jong Chul Ye

The paper introduces the weighted convolution, a novel approach to the convolution for signals defined on regular grids (e.g., 2D images) through the application of an optimal density function to scale the contribution of neighbouring…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Simone Cammarasana , Giuseppe Patanè

Frame-level visual features are generally aggregated in time with the techniques such as LSTM, Fisher Vectors, NetVLAD etc. to produce a robust video-level representation. We here introduce a learnable aggregation technique whose primary…

Computer Vision and Pattern Recognition · Computer Science 2017-08-25 Savas Ozkan , Gozde Bozdagi Akar

Artificial Intelligence algorithms have been steadily increasing in popularity and usage. Deep Learning, allows neural networks to be trained using huge datasets and also removes the need for human extracted features, as it automates the…

Neural and Evolutionary Computing · Computer Science 2020-05-11 Vasco Lopes , Paulo Fazendeiro

Deep networks have gained immense popularity in Computer Vision and other fields in the past few years due to their remarkable performance on recognition/classification tasks surpassing the state-of-the art. One of the keys to their success…

Machine Learning · Computer Science 2018-06-04 Rudrasis Chakraborty , Chun-Hao Yang , Baba C. Vemuri

Scene parsing from images is a fundamental yet challenging problem in visual content understanding. In this dense prediction task, the parsing model assigns every pixel to a categorical label, which requires the contextual information of…

Computer Vision and Pattern Recognition · Computer Science 2020-11-06 Litao Yu , Yongsheng Gao , Jun Zhou , Jian Zhang , Qiang Wu

Most action recognition methods base on a) a late aggregation of frame level CNN features using average pooling, max pooling, or RNN, among others, or b) spatio-temporal aggregation via 3D convolutions. The first assume independence among…

Computer Vision and Pattern Recognition · Computer Science 2019-05-30 Swathikiran Sudhakaran , Sergio Escalera , Oswald Lanz