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Accelerating compute intensive non-real-time beam-forming algorithms in ultrasound imaging using deep learning architectures has been gaining momentum in the recent past. Nonetheless, the complexity of the state-of-the-art deep learning…

图像与视频处理 · 电气工程与系统科学 2024-01-17 Abdul Rahoof , Vivek Chaturvedi , Mahesh Raveendranatha Panicker , Muhammad Shafique

In this paper, a binaural beamforming algorithm for hearing aid applications is introduced.The beamforming algorithm is designed to be robust to some error in the estimate of the target speaker direction. The algorithm has two main…

音频与语音处理 · 电气工程与系统科学 2019-11-21 Hala As'ad , Martin Bouchard , Homayoun Kamkar-Parsi

This paper describes multichannel speech enhancement for improving automatic speech recognition (ASR) in noisy environments. Recently, the minimum variance distortionless response (MVDR) beamforming has widely been used because it works…

Integrated sensing and communication (ISAC) is a pivotal enabler for next-generation wireless networks. A key challenge in ISAC systems lies in designing dual-functional waveforms that can achieve satisfactory radar sensing accuracy by…

信号处理 · 电气工程与系统科学 2025-03-18 Peishi Li , Ming Li , Rang Liu , Qian Liu , A. Lee Swindlehurst

Three-dimensional (3D) ultrasound promises various medical applications for abdominal, obstetrics, and breast imaging. However, ultrasound matrix arrays have extremely high element counts limiting their field of view (FOV). Current reduced…

信号处理 · 电气工程与系统科学 2026-04-17 Mick Gardner , Michael L. Oelze

Dynamic metasurface antennas (DMAs) are an alternative application of metasurfaces as active reconfigurable antennas with advanced analog signal processing and beamforming capabilities, which have been proposed to replace conventional…

信息论 · 计算机科学 2024-09-17 Nemanja Stefan Perović

Many recent loss functions in deep metric learning are expressed with logarithmic and exponential forms, and they involve margin and scale as essential hyper-parameters. Since each data class has an intrinsic characteristic, several…

音频与语音处理 · 电气工程与系统科学 2023-05-24 Myunghun Jung , Hoirin Kim

Typically, an ultrasound flow imaging system employs the conventional delay and sum (DAS) beamformer due to its inherent low complexity. But the conventional DAS technique offers poor contrast, low imaging resolution, and limited…

信号处理 · 电气工程与系统科学 2022-06-24 A. N. Madhavanunni , Mahesh Raveendranatha Panicker

The deconvolutional DAMAS algorithm can effectively eliminate the misconceptions in the usually-used beamforming localization algorithm, allowing for more accurate calculation of the source location as well as the intensity. When solving a…

声音 · 计算机科学 2023-07-06 Weicheng Xue , Bing Yang , Shaohong Jia

Speech separation algorithms are often used to separate the target speech from other interfering sources. However, purely neural network based speech separation systems often cause nonlinear distortion that is harmful for automatic speech…

音频与语音处理 · 电气工程与系统科学 2021-02-10 Zhuohuang Zhang , Yong Xu , Meng Yu , Shi-Xiong Zhang , Lianwu Chen , Dong Yu

While supervised stereo matching and monocular depth estimation have advanced significantly with learning-based algorithms, self-supervised methods using stereo images as supervision signals have received relatively less focus and require…

计算机视觉与模式识别 · 计算机科学 2025-08-19 Zihua Liu , Yizhou Li , Songyan Zhang , Masatoshi Okutomi

In the scenario with reverberation, the experience of human-machine interaction will become worse. In order to solve this problem, many methods for the dereverberation have emerged. At present, how to update the parameters of the Kalman…

音频与语音处理 · 电气工程与系统科学 2022-03-29 Fengqi Tan , Changchun Bao

Audio-Visual Segmentation (AVS) aims to localize sound-producing objects at the pixel level by jointly leveraging auditory and visual information. However, existing methods often suffer from multi-source entanglement and audio-visual…

计算机视觉与模式识别 · 计算机科学 2025-12-24 Jingqi Tian , Yiheng Du , Haoji Zhang , Yuji Wang , Isaac Ning Lee , Xulong Bai , Tianrui Zhu , Jingxuan Niu , Yansong Tang

Data augmentation is vital to the generalization ability and robustness of deep neural networks (DNNs) models. Existing augmentation methods for speaker verification manipulate the raw signal, which are time-consuming and the augmented…

音频与语音处理 · 电气工程与系统科学 2023-10-19 Yuanyuan Wang , Yang Zhang , Zhiyong Wu , Zhihan Yang , Tao Wei , Kun Zou , Helen Meng

In this research work, a novel framework is pro- posed as an efficient successor to traditional imaging methods for breast cancer detection in order to decrease the computational complexity. In this framework, the breast is devided into…

计算机视觉与模式识别 · 计算机科学 2017-09-11 Yasaman Ettefagh , Mohammad Hossein Moghaddam , Saeed Vahidian

While passive acoustic mapping (PAM) has been advanced for monitoring acoustic cavitation activity in focused ultrasound (FUS) therapy, achieving both real-time and high-quality imaging capabilities is still challenging. The angular…

医学物理 · 物理学 2024-12-04 Yi Zeng , Hui Zhu , Jinwei Li , Jianfeng Li , Fei Li , Shukuan Lu , Xiran Cai

Dynamic metasurface antennas (DMAs) are emerging as a promising technology to enable energy-efficient, large array-based multi-antenna systems. This paper presents a simple channel estimation scheme for the downlink of a multiple-input…

信号处理 · 电气工程与系统科学 2026-03-17 Amarilton L. Magalhães , Fazal E-Asim , André L. F. de Almeida , A. Lee Swindlehurst

In this paper we propose a robust loudspeaker beamforming algorithm which is used to enhance the performance of voice driven applications in scenarios where the loudspeakers introduce the majority of the noise, e.g. when music is playing…

音频与语音处理 · 电气工程与系统科学 2025-05-21 Dimme de Groot , Baturalp Karslioglu , Odette Scharenborg , Jorge Martinez

Photoacoustic microscopy (PAM) is a novel implementation of photoacoustic imaging (PAI) for visualizing the 3D bio-structure, which is realized by raster scanning of the tissue. However, as three involved critical imaging parameters,…

图像与视频处理 · 电气工程与系统科学 2023-08-10 Zhengyuan Zhang , Haoran Jin , Zesheng Zheng , Wenwen Zhang , Wenhao Lu , Feng Qin , Arunima Sharma , Manojit Pramanik , Yuanjin Zheng

To improve speech intelligibility and speech quality in noisy environments, binaural noise reduction algorithms for head-mounted assistive listening devices are of crucial importance. Several binaural noise reduction algorithms such as the…

音频与语音处理 · 电气工程与系统科学 2022-11-15 Marvin Tammen , Simon Doclo