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Dense pixel matching problems such as optical flow and disparity estimation are among the most challenging tasks in computer vision. Recently, several deep learning methods designed for these problems have been successful. A sufficiently…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Ali Salehi , Madhusudhanan Balasubramanian

Video frame interpolation (VFI) is currently a very active research topic, with applications spanning computer vision, post production and video encoding. VFI can be extremely challenging, particularly in sequences containing large motions,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Duolikun Danier , Fan Zhang , David Bull

While promising performance for speaker verification has been achieved by deep speaker embeddings, the advantage would reduce in the case of speaking-style variability. Speaking rate mismatch is often observed in practical speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-31 Fuchuan Tong , Siqi Zheng , Haodong Zhou , Xingjia Xie , Qingyang Hong , Lin Li

The estimation of the time- and frequency-dependent coherent-to-diffuse power ratio (CDR) from the measured spatial coherence between two omnidirectional microphones is investigated. Known CDR estimators are formulated in a common…

Sound · Computer Science 2015-04-01 Andreas Schwarz , Walter Kellermann

We propose a deep beamforming framework for enhancing target speaker(s) in multi-speaker environments. A deep neural network (DNN) is trained to estimate beamforming weights directly from noisy multichannel inputs while satisfying linear…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-21 Ilai Zaidel , Ori Engel , Bar Engel , Sharon Gannot

This paper introduces a new training strategy to improve speech dereverberation systems using minimal acoustic information and reverberant (wet) speech. Most existing algorithms rely on paired dry/wet data, which is difficult to obtain, or…

Audio and Speech Processing · Electrical Eng. & Systems 2025-02-12 Louis Bahrman , Mathieu Fontaine , Gael Richard

In the last decades several multi-microphone speech dereverberation algorithms have been proposed, among which the weighted prediction error (WPE) algorithm. In the WPE algorithm, a prediction delay is required to reduce the correlation…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-04 Anselm Lohmann , Toon van Waterschoot , Joerg Bitzer , Simon Doclo

Deep object recognition models have been very successful over benchmark datasets such as ImageNet. How accurate and robust are they to distribution shifts arising from natural and synthetic variations in datasets? Prior research on this…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Ali Borji

WaveNet is a state-of-the-art text-to-speech vocoder that remains challenging to deploy due to its autoregressive loop. In this work we focus on ways to accelerate the original WaveNet architecture directly, as opposed to modifying the…

Machine Learning · Computer Science 2020-11-23 Sam Davis , Giuseppe Coccia , Sam Gooch , Julian Mack

While the deep learning techniques promote the rapid development of the speech enhancement (SE) community, most schemes only pursue the performance in a black-box manner and lack adequate model interpretability. Inspired by Taylor's…

Sound · Computer Science 2022-05-03 Andong Li , Shan You , Guochen Yu , Chengshi Zheng , Xiaodong Li

We present a filter correlation based model compression approach for deep convolutional neural networks. Our approach iteratively identifies pairs of filters with the largest pairwise correlations and drops one of the filters from each such…

Computer Vision and Pattern Recognition · Computer Science 2020-01-17 Pravendra Singh , Vinay Kumar Verma , Piyush Rai , Vinay P. Namboodiri

Dereverberation is an important sub-task of Speech Enhancement (SE) to improve the signal's intelligibility and quality. However, it remains challenging because the reverberation is highly correlated with the signal. Furthermore, the…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-05 Satvik Venkatesh , Philip Coleman , Arthur Benilov , Simon Brown , Selim Sheta , Frederic Roskam

Deep learning techniques have successfully been employed in numerous computer vision tasks including image segmentation. The techniques have also been applied to medical image segmentation, one of the most critical tasks in computer-aided…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Titinunt Kitrungrotsakul , Iwamoto Yutaro , Lanfen Lin , Ruofeng Tong , Jingsong Li , Yen-Wei Chen

In this paper, we address the problem of multichannel speech enhancement in the short-time Fourier transform (STFT) domain. A long short-time memory (LSTM) network takes as input a sequence of STFT coefficients associated with a frequency…

Sound · Computer Science 2020-09-24 Xiaofei LI , Radu Horaud

Direct-to-Reverberant Ratio (DRR) is an important measure for characterizing the properties of a room. The recently proposed DRR Estimation using a Null-Steered Beamformer (DENBE) algorithm was originally tested on simulated data where…

Sound · Computer Science 2015-10-27 James Eaton , Patrick A. Naylor

This paper presents an experimental study on deep speaker embedding with an attention mechanism that has been found to be a powerful representation learning technique in speaker recognition. In this framework, an attention model works as a…

Sound · Computer Science 2018-09-26 Qiongqiong Wang , Koji Okabe , Kong Aik Lee , Hitoshi Yamamoto , Takafumi Koshinaka

This paper addresses the combination of complementary parallel speech recognition systems to reduce the error rate of speech recognition systems operating in real highly-reverberant environments. First, the testing environment consists of…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-19 José Novoa , Josué Fredes , Jorge Wuth , Fernando Huenupán , Richard M. Stern , Nestor Becerra Yoma

An acoustic reverberator consisting of a network of delay lines connected via scattering junctions is proposed. All parameters of the reverberator are derived from physical properties of the enclosure it simulates. It allows for simulation…

Sound · Computer Science 2015-07-10 Enzo De Sena , Huseyin Hacihabiboglu , Zoran Cvetkovic , Julius O. Smith

Frame-online speech enhancement systems in the short-time Fourier transform (STFT) domain usually have an algorithmic latency equal to the window size due to the use of overlap-add in the inverse STFT (iSTFT). This algorithmic latency…

Sound · Computer Science 2022-07-13 Zhong-Qiu Wang , Shinji Watanabe

The DeepFilterNet (DFN) architecture was recently proposed as a deep learning model suited for hearing aid devices. Despite its competitive performance on numerous benchmarks, it still follows a `one-size-fits-all' approach, which aims to…