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Radar is a low-cost and ubiquitous automotive sensor, but is limited by array resolution and sensitivity when performing direction of arrival analysis. Synthetic Aperture Radar (SAR) is a class of techniques to improve azimuth resolution…

信号处理 · 电气工程与系统科学 2025-01-16 Leyla A. Kabuli , Griffin Foster

Combining synthetic aperture sonar (SAS) imagery with optical images for underwater object classification has the potential to overcome challenges such as water clarity, the stability of the optical image analysis platform, and strong…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Avi Abu , Roee Diamant

The image classification problem has been deeply investigated by the research community, with computer vision algorithms and with the help of Neural Networks. The aim of this paper is to build an image classifier for satellite images of…

计算机视觉与模式识别 · 计算机科学 2021-10-01 Jonas Bokstaller , Yihang She , Zhehan Fu , Tommaso Macrì

The convolutional neural network (CNN) learns the same object in different positions in images, which can improve the recognition accuracy of the model. An implication of this is that CNN may know where the object is. The usefulness of the…

计算机视觉与模式识别 · 计算机科学 2023-02-20 Nan Yang , Laicheng Zhong , Fan Huang , Dong Yuan , Wei Bao

Single image super-resolution (SISR) is a very popular topic nowadays, which has both research value and practical value. In daily life, we crop a large image into sub-images to do super-resolution and then merge them together. Although…

计算机视觉与模式识别 · 计算机科学 2019-07-31 Junyu , Wang , Rong Song

Image classifiers for domain-specific tasks like Synthetic Aperture Radar Automatic Target Recognition (SAR ATR) and chest X-ray classification often rely on convolutional neural networks (CNNs). These networks, while powerful, experience…

计算机视觉与模式识别 · 计算机科学 2024-06-28 Jacob Fein-Ashley , Sachini Wickramasinghe , Bingyi Zhang , Rajgopal Kannan , Viktor Prasanna

Acoustic scattering is strongly influenced by boundary geometry of objects over which sound scatters. The present work proposes a method to infer object geometry from scattering features by training convolutional neural networks. The…

声音 · 计算机科学 2021-02-12 Ziqi Fan , Vibhav Vineet , Chenshen Lu , T. W. Wu , Kyla McMullen

Traditional synthetic aperture radar image change detection methods based on convolutional neural networks (CNNs) face the challenges of speckle noise and deformation sensitivity. To mitigate these issues, we proposed a Multiscale Capsule…

图像与视频处理 · 电气工程与系统科学 2022-01-25 Yunhao Gao , Feng Gao , Junyu Dong , Heng-Chao Li

Driver assistance systems as well as autonomous cars have to rely on sensors to perceive their environment. A heterogeneous set of sensors is used to perform this task robustly. Among them, radar sensors are indispensable because of their…

信号处理 · 电气工程与系统科学 2019-06-26 Johanna Rock , Mate Toth , Elmar Messner , Paul Meissner , Franz Pernkopf

Deep learning based methods have recently pushed the state-of-the-art on the problem of Single Image Super-Resolution (SISR). In this work, we revisit the more traditional interpolation-based methods, that were popular before, now with the…

计算机视觉与模式识别 · 计算机科学 2017-12-19 Xu Jia , Hong Chang , Tinne Tuytelaars

In this paper, we apply the scattering transform (ST), a nonlinear map based off of a convolutional neural network (CNN), to classification of underwater objects using sonar signals. The ST formalizes the observation that the filters…

计算机视觉与模式识别 · 计算机科学 2017-09-05 Naoki Saito , David S. Weber

Deploying deep learning on Synthetic Aperture Radar (SAR) data is becoming more common for mapping purposes. One such case is sea ice, which is highly dynamic and rapidly changes as a result of the combined effect of wind, temperature, and…

计算机视觉与模式识别 · 计算机科学 2023-10-27 Morteza Karimzadeh , Rafael Pires de Lima

Scattering networks are a class of designed Convolutional Neural Networks (CNNs) with fixed weights. We argue they can serve as generic representations for modelling images. In particular, by working in scattering space, we achieve…

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…

计算机视觉与模式识别 · 计算机科学 2019-10-15 Vikas Agaradahalli Gurumurthy

Convolutional neural nets (CNN) are the leading computer vision method for classifying images. In some cases, it is desirable to classify only a specific region of the image that corresponds to a certain object. Hence, assuming that the…

计算机视觉与模式识别 · 计算机科学 2018-12-07 Sagi Eppel

This paper proposes a method for detecting multiple scatterers (targets) in the elevation direction for synthetic aperture radar (SAR) tomography. The proposed method can resolve closely spaced targets through a twostep procedure. In the…

信息论 · 计算机科学 2022-04-11 Ahmad Naghavi , Mohammad Sadegh Fazel , Mojtaba Beheshti , Ehsan Yazdian

Convolutional neural networks (CNN) have been successfully employed to tackle several remote sensing tasks such as image classification and show better performance than previous techniques. For the radar imaging community, a natural…

信号处理 · 电气工程与系统科学 2018-07-03 Jingkun Gao , Bin Deng , Yuliang Qin , Hongqiang Wang , Xiang Li

This paper presents a Convolutional Neural Network (CNN) approach for counting and locating objects in high-density imagery. To the best of our knowledge, this is the first object counting and locating method based on a feature map…

For high resolution scene mapping and object recognition, optical technologies such as cameras and LiDAR are the sensors of choice. However, for robust future vehicle autonomy and driver assistance in adverse weather conditions,…

计算机视觉与模式识别 · 计算机科学 2019-12-09 Marcel Sheeny , Andrew Wallace , Sen Wang

Synthetic aperture radar (SAR) is widely used for ground surface classification since it utilizes information on vegetation and soil unavailable in optical observation. Image classification often employs convolutional neural networks.…

信号处理 · 电气工程与系统科学 2021-08-31 Bungo Konishi , Akira Hirose , Ryo Natsuaki