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Object detection, one of the three main tasks of computer vision, has been used in various applications. The main process is to use deep neural networks to extract the features of an image and then use the features to identify the class and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Wenshuo Li

The method of direct imaging has detected many exoplanets and made important contribution to the field of planet formation. The standard method employs angular differential imaging (ADI) technique, and more ADI image frames could lead to…

Earth and Planetary Astrophysics · Physics 2023-01-12 Pattana Chintarungruangchai , Ing-Guey Jiang , Jun Hashimoto , Yu Komatsu , Mihoko Konishi

We developed Convolutional Neural Networks (CNNs) to rapidly and directly infer the planet mass from radio dust continuum images. Substructures induced by young planets in protoplanetary disks can be used to infer the potential young…

Earth and Planetary Astrophysics · Physics 2021-12-15 Shangjia Zhang , Zhaohuan Zhu , Mingon Kang

We propose to use low-rank matrix approximation using the component-wise L1-norm for direct imaging of exoplanets. Exoplanet detection by direct imaging is a challenging task for three main reasons: (1) the host star is several orders of…

Instrumentation and Methods for Astrophysics · Physics 2023-10-30 Hazan Daglayan , Simon Vary , Valentin Leplat , Nicolas Gillis , P. -A. Absil

Current space-based missions, such as the Transiting Exoplanet Survey Satellite (TESS), provide a large database of light curves that must be analysed efficiently and systematically. In recent years, deep learning (DL) methods, particularly…

Earth and Planetary Astrophysics · Physics 2025-04-15 Helem Salinas , Karim Pichara , Rafael Brahm , Francisco Pérez-Galarce , Domingo Mery

Visual place recognition (VPR) is a challenging task with the unbalance between enormous computational cost and high recognition performance. Thanks to the practical feature extraction ability of the lightweight convolution neural networks…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Qingyuan Gong , Yu Liu , Liqiang Zhang , Renhe Liu

We explore the effectiveness of deep learning convolutional neural networks (CNNs) for estimating strong gravitational lens mass model parameters. We have investigated a number of practicalities faced when modelling real image data, such as…

Instrumentation and Methods for Astrophysics · Physics 2019-07-24 James Pearson , Nan Li , Simon Dye

Coronagraphs allow for faint off-axis exoplanets to be observed, but are limited to angular separations greater than a few beam widths. Accessing closer-in separations would greatly increase the expected number of detectable planets, which…

Automated detection of cervical cancer cells or cell clumps has the potential to significantly reduce error rate and increase productivity in cervical cancer screening. However, most traditional methods rely on the success of accurate cell…

Computer Vision and Pattern Recognition · Computer Science 2019-12-24 Yixiong Liang , Zhihong Tang , Meng Yan , Jialin Chen , Qing Liu , Yao Xiang

This paper proposed an ensemble of deep convolutional neural networks (CNN) based on EfficientNet, named ECOVNet, to detect COVID-19 using a large chest X-ray data set. At first, the open-access large chest X-ray collection is augmented,…

Image and Video Processing · Electrical Eng. & Systems 2021-05-27 Nihad Karim Chowdhury , Muhammad Ashad Kabir , Md. Muhtadir Rahman , Noortaz Rezoana

Scene understanding plays an important role in several high-level computer vision applications, such as autonomous vehicles, intelligent video surveillance, or robotics. However, too few solutions have been proposed for indoor/outdoor scene…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Ayman Beghdadi , Azeddine Beghdadi , Mohib Ullah , Faouzi Alaya Cheikh , Malik Mallem

We present our results from training and evaluating a convolutional neural network (CNN) to predict galaxy shapes from wide-field survey images of the first data release of the Dark Energy Survey (DES DR1). We use conventional shape…

Cosmology and Nongalactic Astrophysics · Physics 2019-09-25 Dezső Ribli , László Dobos , István Csabai

In this paper we describe the implementation of a convolutional neural network (CNN) used to assess online review helpfulness. To our knowledge, this is the first use of this architecture to address this problem. We explore the impact of…

Computer Vision and Pattern Recognition · Computer Science 2018-08-29 Xianshan Qu , Xiaopeng Li , John R. Rose

For the task of change detection (CD) in remote sensing images, deep convolution neural networks (CNNs)-based methods have recently aggregated transformer modules to improve the capability of global feature extraction. However, they suffer…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Weiming Li , Lihui Xue , Xueqian Wang , Gang Li

Training CNN for detection is time-consuming due to the large dataset and complex network modules, making it hard to search architectures on detection datasets directly, which usually requires vast search costs (usually tens and even…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Xiaoxing Wang , Jiale Lin , Junchi Yan , Juanping Zhao , Xiaokang Yang

Convolutional neural networks (CNNs) are the state-of-the-art technique for identifying strong gravitational lenses. Although they are highly successful in recovering genuine lens systems with a high true-positive rate, the unbalanced…

Optical and hybrid convolutional neural networks (CNNs) recently have become of increasing interest to achieve low-latency, low-power image classification and computer vision tasks. However, implementing optical nonlinearity is challenging,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Anna Wirth-Singh , Jinlin Xiang , Minho Choi , Johannes E. Fröch , Luocheng Huang , Shane Colburn , Eli Shlizerman , Arka Majumdar

A Monte Carlo k-nearest neighbours (KNN) and a multi-resolution convolutional neural network (CNN) were developed to detect the presences of multiple gasses in near infrared (IR) spectrums. High Resolution Transmission database was used to…

Machine Learning · Computer Science 2020-03-25 Brosnan Yuen

Convolutional neural networks (CNNs) have revolutionized the world of computer vision over the last few years, pushing image classification beyond human accuracy. The computational effort of today's CNNs requires power-hungry parallel…

Hardware Architecture · Computer Science 2017-02-27 Renzo Andri , Lukas Cavigelli , Davide Rossi , Luca Benini

Deep Convolutional Neural Networks (CNN) provides an "end-to-end" solution for image pattern recognition with impressive performance in many areas of application including medical imaging. Most CNN models of high performance use…

Image and Video Processing · Electrical Eng. & Systems 2020-05-29 Mohammed Ahmed , Hongbo Du , Alaa AlZoubi