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This paper introduces a computationally efficient technique for estimating high-resolution Doppler blood flow from an ultrafast ultrasound image sequence. More precisely, it consists in a new fast alternating minimization algorithm that…

Image and Video Processing · Electrical Eng. & Systems 2020-11-04 Duong-Hung Pham , Adrian Basarab , Jean-Pierre Remenieras , Paul Rodríguez , Denis Kouamé

Neural vocoders have recently advanced waveform generation, yielding natural and expressive audio. Among these approaches, iSTFT-based vocoders have recently gained attention. They predict a complex-valued spectrogram and then synthesize…

Sound · Computer Science 2026-03-13 Hyung-Seok Oh , Deok-Hyeon Cho , Seung-Bin Kim , Seong-Whan Lee

Enabled by multi-head self-attention, Transformer has exhibited remarkable results in speech emotion recognition (SER). Compared to the original full attention mechanism, window-based attention is more effective in learning fine-grained…

Sound · Computer Science 2023-02-28 Weidong Chen , Xiaofen Xing , Xiangmin Xu , Jianxin Pang , Lan Du

Causal Disentangled Representation Learning(CDRL) aims to learn and disentangle low dimensional representations and their underlying causal structure from observations. However, existing disentanglement methods rely on a standard mean-field…

Machine Learning · Computer Science 2026-01-30 Yutao Jin , Yuang Tao , Junyong Zhai

Current anti-spoofing and audio deepfake detection systems use either magnitude spectrogram-based features (such as CQT or Melspectrograms) or raw audio processed through convolution or sinc-layers. Both methods have drawbacks: magnitude…

Sound · Computer Science 2023-08-24 Nicolas M. Müller , Philip Sperl , Konstantin Böttinger

This article presents a Non-negative Tensor Factorization based method for sound source separation from Ambisonic microphone signals. The proposed method enables the use of prior knowledge about the Directions-of-Arrival (DOAs) of the…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-20 Mateusz Guzik , Konrad Kowalczyk

The recently proposed semi-blind source separation (SBSS) method for nonlinear acoustic echo cancellation (NAEC) outperforms adaptive NAEC in attenuating the nonlinear acoustic echo. However, the multiplicative transfer function (MTF)…

Audio and Speech Processing · Electrical Eng. & Systems 2023-01-18 Guoliang Cheng , Lele Liao , Kai Chen , Yuxiang Hu , Changbao Zhu , Jing Lu

Previous VoIP steganalysis methods face great challenges in detecting speech signals at low embedding rates, and they are also generally difficult to perform real-time detection, making them hard to truly maintain cyberspace security. To…

Multimedia · Computer Science 2019-02-05 Zhongliang Yang , Hao Yang , Yuting Hu , Yongfeng Huang , Yu-Jin Zhang

In this paper, we propose an end-to-end post-filter method with deep attention fusion features for monaural speaker-independent speech separation. At first, a time-frequency domain speech separation method is applied as the pre-separation…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-18 Cunhang Fan , Jianhua Tao , Bin Liu , Jiangyan Yi , Zhengqi Wen , Xuefei Liu

This paper presents the Multimodal Laryngoscopic Video Analyzing System (MLVAS), a novel system that leverages both audio and video data to automatically extract key video segments and metrics from raw laryngeal videostroboscopic videos for…

Sound · Computer Science 2026-03-10 Yucong Zhang , Xin Zou , Jinshan Yang , Wenjun Chen , Juan Liu , Faya Liang , Ming Li

A universal methodology for coding-decoding the complex amplitude field of an imaged sample in coherent microscopy is presented, where no restrictions on any of the two interferometric beams are required. Thus, the imaging beam can be…

With the increasing demand for audio communication and online conference, ensuring the robustness of Acoustic Echo Cancellation (AEC) under the complicated acoustic scenario including noise, reverberation and nonlinear distortion has become…

Sound · Computer Science 2022-02-16 Shimin Zhang , Yuxiang Kong , Shubo Lv , Yanxin Hu , Lei Xie

Emotion recognition (ER) from speech signals is a robust approach since it cannot be imitated like facial expression or text based sentiment analysis. Valuable information underlying the emotions are significant for human-computer…

Sound · Computer Science 2023-12-19 David Hason Rudd , Huan Huo , Guandong Xu

We present the method of complementary ensemble empirical mode decomposition (CEEMD) and Hilbert-Huang transform (HHT) for analyzing nonstationary financial time series. This noise-assisted approach decomposes any time series into a number…

Computational Finance · Quantitative Finance 2021-05-25 Tim Leung , Theodore Zhao

Current discriminative depth estimation methods often produce blurry artifacts, while generative approaches suffer from slow sampling due to curvatures in the noise-to-depth transport. Our method addresses these challenges by framing depth…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Ming Gui , Johannes Schusterbauer , Ulrich Prestel , Pingchuan Ma , Dmytro Kotovenko , Olga Grebenkova , Stefan Andreas Baumann , Vincent Tao Hu , Björn Ommer

In a hybrid speech model, both voiced and unvoiced components can coexist in a segment. Often, the voiced speech is regarded as the deterministic component, and the unvoiced speech and additive noise are the stochastic components.…

Audio and Speech Processing · Electrical Eng. & Systems 2021-05-05 Alfredo Esquivel Jaramillo , Jesper Kjær Nielsen , Mads Græsbøll Christensen

While log-amplitude mel-spectrogram has widely been used as the feature representation for processing speech based on deep learning, the effectiveness of another aspect of speech spectrum, i.e., phase information, was shown recently for…

Sound · Computer Science 2022-05-02 Shunsuke Hidaka , Kohei Wakamiya , Tokihiko Kaburagi

This study introduces a significant architectural advancement in feature fusion for lyrical content classification by integrating auxiliary structural features directly into the self-attention mechanism of a pre-trained Transformer. I…

Machine Learning · Computer Science 2025-12-03 M. A. Gameiro

Dysarthria is a neurological disorder that significantly impairs speech intelligibility, often rendering affected individuals unable to communicate effectively. This necessitates the development of robust dysarthric-to-regular speech…

Sound · Computer Science 2025-06-23 Shoutrik Das , Nishant Singh , Arjun Gangwar , S Umesh

Zernike polynomials are widely used to describe the wavefront phase as they are well suited to the circular geometry of various optical apertures. Non-conventional optical systems, such as future large optical telescopes with highly…

Instrumentation and Methods for Astrophysics · Physics 2018-09-27 Pierre Janin-Potiron , Patrice Martinez , Marcel Carbillet