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Ultrafast intracardiac echocardiography (ICE) uses unfocused transmissions to capture cardiac motion at frame rates exceeding 1 kHz. While this enables real-time visualization of rapid dynamics, image quality is often degraded by…

图像与视频处理 · 电气工程与系统科学 2025-10-08 Rémi Delaunay , Christoph Hennersperger , Stefan Wörz

Viewpoint estimation from 2D rendered images is helpful in understanding how users select viewpoints for volume visualization and guiding users to select better viewpoints based on previous visualizations. In this paper, we propose a…

图形学 · 计算机科学 2019-02-04 Neng Shi , Yubo Tao

This letter introduces SVN-ICP, a novel Iterative Closest Point (ICP) algorithm with uncertainty estimation that leverages Stein Variational Newton (SVN) on manifold. Designed specifically for fusing LiDAR odometry in multisensor systems,…

机器人学 · 计算机科学 2025-10-14 Shiping Ma , Haoming Zhang , Marc Toussaint

In this paper, we propose an image re-sampling compression method by learning virtual codec network (VCN) to resolve the non-differentiable problem of quantization function for image compression. Here, the image re-sampling not only refers…

图像与视频处理 · 电气工程与系统科学 2018-07-11 Lijun Zhao , Huihui Bai , Anhong Wang , Yao Zhao

Inverse problems are fundamental in fields like medical imaging, geophysics, and computerized tomography, aiming to recover unknown quantities from observed data. However, these problems often lack stability due to noise and…

数值分析 · 数学 2024-06-26 Andrea Ebner , Matthias Schwab , Markus Haltmeier

Visual-inertial SLAM systems often exhibit suboptimal performance due to multiple confounding factors including imperfect sensor calibration, noisy measurements, rapid motion dynamics, low illumination, and the inherent limitations of…

机器人学 · 计算机科学 2025-12-02 Tali Orlev Shapira , Itzik Klein

This study aimed to develop a virtual sensing algorithm of structural vibration for the real-time identification of unmeasured information. First, certain local point vibration responses (such as displacement and acceleration) are measured…

计算工程、金融与科学 · 计算机科学 2022-11-24 Seungin Oh , Hanmin Lee , Jai-Kyung Lee , Hyungchul Yoon , Jin-Gyun Kim

Thin film interferometry is a powerful technique for non-invasively measuring liquid film thickness with applications in ophthalmology, but its clinical translation is hindered by the challenges in reconstructing thickness profiles from…

计算机视觉与模式识别 · 计算机科学 2025-10-30 Gautam A. Viruthagiri , Arnuv Tandon , Gerald G. Fuller , Vinny Chandran Suja

Event-based sensors offer significant advantages over traditional frame-based cameras, especially in scenarios involving rapid motion or challenging lighting conditions. However, event data frequently suffers from considerable noise,…

计算机视觉与模式识别 · 计算机科学 2025-06-05 Marcin Kowalczyk , Kamil Jeziorek , Tomasz Kryjak

Invertible networks have various benefits for image denoising since they are lightweight, information-lossless, and memory-saving during back-propagation. However, applying invertible models to remove noise is challenging because the input…

图像与视频处理 · 电气工程与系统科学 2021-04-22 Yang Liu , Zhenyue Qin , Saeed Anwar , Pan Ji , Dongwoo Kim , Sabrina Caldwell , Tom Gedeon

The effect of noise on the Inverse Synthetic Aperture Radar (ISAR) with sparse apertures is a challenging issue for image reconstruction with high resolution at low Signal-to-Noise Ratios (SNRs). It is well-known that the image resolution…

信号处理 · 电气工程与系统科学 2024-06-18 Mohammad Roueinfar , Mohammad Hossein Kahaei

This paper presents a super-efficient spatially adaptive contrast enhancement algorithm for enhancing infrared (IR) radiation based superficial vein images in real-time. The super-efficiency permits the algorithm to run in consumer-grade…

计算机视觉与模式识别 · 计算机科学 2018-03-02 A. M. R. R. Bandara , K. A. S. H. Kulathilake , P. W. G. R. M. P. B. Giragama

During the image acquisition process, noise is usually added to the data mainly due to physical limitations of the acquisition sensor, and also regarding imprecisions during the data transmission and manipulation. In that sense, the…

Recently, deep unfolding methods that guide the design of deep neural networks (DNNs) through iterative algorithms have received increasing attention in the field of inverse problems. Unlike general end-to-end DNNs, unfolding methods have…

最优化与控制 · 数学 2022-11-28 Zhuo-Xu Cui , Qingyong Zhu , Jing Cheng , Dong Liang

Fourier ptychographic microscopy (FPM) is a computational imaging technique with both high resolution and large field-of-view. However, the effective numerical aperture (NA) achievable with a typical LED panel is ambiguous and usually…

图像与视频处理 · 电气工程与系统科学 2017-10-03 An Pan , Yan Zhang , Maosen Li , Meiling Zhou , Junwei Min , Ming Lei , Baoli Yao

Recent studies have shown that Convolutional Neural Networks (CNNs) are vulnerable to a small perturbation of input called "adversarial examples". In this work, we propose a new feedforward CNN that improves robustness in the presence of…

机器学习 · 计算机科学 2016-02-26 Jonghoon Jin , Aysegul Dundar , Eugenio Culurciello

Motion estimation approaches typically employ sensor fusion techniques, such as the Kalman Filter, to handle individual sensor failures. More recently, deep learning-based fusion approaches have been proposed, increasing the performance and…

计算机视觉与模式识别 · 计算机科学 2022-09-19 Nimet Kaygusuz , Oscar Mendez , Richard Bowden

In this paper, we propose a progressive learning paradigm for transformer-based variable-rate image compression. Our approach covers a wide range of compression rates with the assistance of the Layer-adaptive Prompt Module (LPM). Inspired…

计算机视觉与模式识别 · 计算机科学 2023-11-29 Shiyu Qin , Yimin Zhou , Jinpeng Wang , Bin Chen , Baoyi An , Tao Dai , Shu-Tao Xia

This paper describes the implementation and performance of adiabatic absorbing layers in an FFT-accelerated volume integral equation (VIE) method for simulating truncated nanophotonics structures. At the truncation sites, we place absorbing…

计算物理 · 物理学 2018-08-15 Alexandra Tambova , Samuel P. Groth , Jacob K. White , Athanasios G. Polimeridis

Delay-and-sum (DAS) algorithms are widely used for beamforming in linear array photoacoustic imaging systems and are characterized by fast execution. However, these algorithms suffer from various drawbacks like low resolution, low contrast,…

医学物理 · 物理学 2021-07-29 Souradip Paul , Subhamoy Mandal , Mayanglambam Suheshkumar Singh