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Motion blur estimation remains an important task for scene analysis and image restoration. In recent years, the removal of motion blur in photographs has seen impressive progress in the hands of deep learning-based methods, trained to map…

Computer Vision and Pattern Recognition · Computer Science 2021-04-28 Guillermo Carbajal , Patricia Vitoria , Mauricio Delbracio , Pablo Musé , José Lezama

Compressive sensing is a method to recover the original image from undersampled measurements. In order to overcome the ill-posedness of this inverse problem, image priors are used such as sparsity in the wavelet domain, minimum…

Computer Vision and Pattern Recognition · Computer Science 2018-12-20 Magauiya Zhussip , Shakarim Soltanayev , Se Young Chun

Most deep neural networks (DNNs) based ultrasound (US) medical image analysis models use pretrained backbones (e.g., ImageNet) for better model generalization. However, the domain gap between natural and medical images causes an inevitable…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 Yixiong Chen , Chunhui Zhang , Li Liu , Cheng Feng , Changfeng Dong , Yongfang Luo , Xiang Wan

Surveillance scenarios are prone to several problems since they usually involve low-resolution footage, and there is no control of how far the subjects may be from the camera in the first place. This situation is suitable for the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-27 Angelo G. Menezes

Ultrafast ultrasound (US) revolutionized biomedical imaging with its capability of acquiring full-view frames at over 1 kHz, unlocking breakthrough modalities such as shear-wave elastography and functional US neuroimaging. Yet, it suffers…

Image and Video Processing · Electrical Eng. & Systems 2022-04-04 Dimitris Perdios , Manuel Vonlanthen , Florian Martinez , Marcel Arditi , Jean-Philippe Thiran

Phase aberration is one of the primary sources of image quality degradation in ultrasound, which is induced by spatial variations in sound speed across the heterogeneous medium. This effect disrupts transmitted waves and prevents coherent…

Image and Video Processing · Electrical Eng. & Systems 2023-05-18 Mostafa Sharifzadeh , Habib Benali , Hassan Rivaz

We propose the inverse design of ultracompact, broadband focusing spectrometers based on adaptive deep diffractive neural networks (a-D$^2$NNs). Specifically, we introduce and characterize two-layer diffractive devices with engineered…

Optics · Physics 2022-12-14 Yilin Zhu , Yuyao Chen , Luca Dal Negro

Machine learning algorithms have recently been considered for many tasks in the field of wireless communications. Previously, we have proposed the use of a deep fully convolutional neural network (CNN) for receiver processing and shown it…

Signal Processing · Electrical Eng. & Systems 2022-07-13 Janne M. J. Huttunen , Dani Korpi , Mikko Honkala

This paper investigates a learning solution for robust beamforming optimization in downlink multi-user systems. A base station (BS) identifies efficient multi-antenna transmission strategies only with imperfect channel state information…

Information Theory · Computer Science 2021-03-03 Junbeom Kim , Hoon Lee , Seok-Hwan Park

It is a challenging task to recover sharp image from a single defocus blurry image in real-world applications. On many modern cameras, dual-pixel (DP) sensors create two-image views, based on which stereo information can be exploited to…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Yu Li , Yaling Yi , Dongwei Ren , Qince Li , Wangmeng Zuo

Invariance to microphone array configuration is a rare attribute in neural beamformers. Filter-and-sum (FS) methods in this class define the target signal with respect to a reference channel. However, this not only complicates formulation…

Audio and Speech Processing · Electrical Eng. & Systems 2023-02-28 Anton Kovalyov , Kashyap Patel , Issa Panahi

Traditional and deep learning-based fusion methods generated the intermediate decision map to obtain the fusion image through a series of post-processing procedures. However, the fusion results generated by these methods are easy to lose…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Yongsheng Zang , Dongming Zhou , Changcheng Wang , Rencan Nie , Yanbu Guo

Ultrasound is an adjunct tool to mammography that can quickly and safely aid physicians with diagnosing breast abnormalities. Clinical ultrasound often assumes a constant sound speed to form B-mode images for diagnosis. However, the various…

Computer Vision and Pattern Recognition · Computer Science 2023-02-08 Walter A. Simson , Magdalini Paschali , Vasiliki Sideri-Lampretsa , Nassir Navab , Jeremy J. Dahl

Ultrasound images are widespread in medical diagnosis for musculoskeletal, cardiac, and obstetrical imaging due to the efficiency and non-invasiveness of the acquisition methodology. However, the acquired images are degraded by acoustic…

Image and Video Processing · Electrical Eng. & Systems 2023-06-14 Hojat Asgariandehkordi , Sobhan Goudarzi , Adrian Basarab , Hassan Rivaz

Medical imaging has significantly revolutionized medical diagnostics and treatment planning, progressing from early X-ray usage to sophisticated methods like MRIs, CT scans, and ultrasounds. This paper investigates the use of deep learning…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Abdennour Boulesnane , Boutheina Mokhtari , Oumnia Rana Segueni , Slimane Segueni

Automatically segmenting objects from optical remote sensing images (ORSIs) is an important task. Most existing models are primarily based on either convolutional or Transformer features, each offering distinct advantages. Exploiting both…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Yanguang Sun , Jiexi Yan , Jianjun Qian , Chunyan Xu , Jian Yang , Lei Luo

Distributed Acoustic Sensing (DAS) using fiber optic cables is a promising new technology for pipeline monitoring and protection. In this work, we applied and compared two approaches for event detection using DAS: Classic machine learning…

Machine Learning · Computer Science 2019-04-29 Mugdim Bublin

Deep neural networks have been extensively studied for undersampled MRI reconstruction. While achieving state-of-the-art performance, they are trained and deployed specifically for one anatomy with limited generalization ability to another…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Xinwen Liu , Jing Wang , Feng Liu , S. Kevin Zhou

In coded aperture snapshot spectral compressive imaging (CASSI) systems, hyperspectral image (HSI) reconstruction methods are employed to recover the spatial-spectral signal from a compressed measurement. Among these algorithms, deep…

Image and Video Processing · Electrical Eng. & Systems 2022-10-18 Yuanhao Cai , Jing Lin , Haoqian Wang , Xin Yuan , Henghui Ding , Yulun Zhang , Radu Timofte , Luc Van Gool

Probabilistic atlas priors have been commonly used to derive adaptive and robust brain MRI segmentation algorithms. Widely-used neuroimage analysis pipelines rely heavily on these techniques, which are often computationally expensive. In…

Computer Vision and Pattern Recognition · Computer Science 2019-07-24 Adrian V. Dalca , Evan Yu , Polina Golland , Bruce Fischl , Mert R. Sabuncu , Juan Eugenio Iglesias
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