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In this paper, we combine deep learning concepts and some proper orthogonal decomposition (POD) model reduction methods for predicting flow in heterogeneous porous media. Nonlinear flow dynamics is studied, where the dynamics is regarded as…

Numerical Analysis · Mathematics 2025-09-12 Siu Wun Cheung , Eric T. Chung , Yalchin Efendiev , Eduardo Gildin , Yating Wang , Jingyan Zhang

Recent advances in self-supervised learning (SSL) on Transformers have significantly improved speaker verification (SV) by providing domain-general speech representations. However, existing approaches have underutilized the multi-layered…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-16 Jin Sob Kim , Hyun Joon Park , Wooseok Shin , Juan Yun , Sung Won Han

The ability to segment teeth precisely from digitized 3D dental models is an essential task in computer-aided orthodontic surgical planning. To date, deep learning based methods have been popularly used to handle this task. State-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Lingming Zhang , Yue Zhao , Deyu Meng , Zhiming Cui , Chenqiang Gao , Xinbo Gao , Chunfeng Lian , Dinggang Shen

Video denoising aims at removing noise from videos to recover clean ones. Some existing works show that optical flow can help the denoising by exploiting the additional spatial-temporal clues from nearby frames. However, the flow estimation…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Jiezhang Cao , Qin Wang , Jingyun Liang , Yulun Zhang , Kai Zhang , Radu Timofte , Luc Van Gool

In recent years, deep learning based machine lipreading has gained prominence. To this end, several architectures such as LipNet, LCANet and others have been proposed which perform extremely well compared to traditional lipreading DNN-HMM…

Computer Vision and Pattern Recognition · Computer Science 2019-07-01 Dilip Kumar Margam , Rohith Aralikatti , Tanay Sharma , Abhinav Thanda , Pujitha A K , Sharad Roy , Shankar M Venkatesan

In this study, we propose a deep neural network for reconstructing intelligible speech from silent lip movement videos. We use auditory spectrogram as spectral representation of speech and its corresponding sound generation method resulting…

Computer Vision and Pattern Recognition · Computer Science 2017-10-27 Hassan Akbari , Himani Arora , Liangliang Cao , Nima Mesgarani

This paper introduces Bayesian Flow Networks (BFNs), a new class of generative model in which the parameters of a set of independent distributions are modified with Bayesian inference in the light of noisy data samples, then passed as input…

Machine Learning · Computer Science 2025-03-12 Alex Graves , Rupesh Kumar Srivastava , Timothy Atkinson , Faustino Gomez

Talking head generation is a significant research topic that still faces numerous challenges. Previous works often adopt generative adversarial networks or regression models, which are plagued by generation quality and average facial shape…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Ziyu Yao , Xuxin Cheng , Zhiqi Huang

Speaker-independent speech separation has achieved remarkable performance in recent years with the development of deep neural network (DNN). Various network architectures, from traditional convolutional neural network (CNN) and recurrent…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-17 Xue Yang , Changchun Bao

We propose a novel multi-stream architecture and training methodology that exploits semantic labels for facial image deblurring. The proposed Uncertainty Guided Multi- Stream Semantic Network (UMSN) processes regions belonging to each…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Rajeev Yasarla , Federico Perazzi , Vishal M. Patel

In this paper some of the different techniques used to localize the lips from the face are discussed and compared along with its processing steps. Lip localization is the basic step needed to read the lips for extracting visual information…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 S. D. Lalitha , K. K. Thyagharajan

This paper introduces an explainable DNN-based beamformer with a postfilter (ExNet-BF+PF) for multichannel signal processing. Our approach combines the U-Net network with a beamformer structure to address this problem. The method involves a…

Audio and Speech Processing · Electrical Eng. & Systems 2024-11-19 Adi Cohen , Daniel Wong , Jung-Suk Lee , Sharon Gannot

In this paper, we propose a convolutional layer inspired by optical flow algorithms to learn motion representations. Our representation flow layer is a fully-differentiable layer designed to capture the `flow' of any representation channel…

Computer Vision and Pattern Recognition · Computer Science 2019-08-05 AJ Piergiovanni , Michael S. Ryoo

The goal of this work is to recognise phrases and sentences being spoken by a talking face, with or without the audio. Unlike previous works that have focussed on recognising a limited number of words or phrases, we tackle lip reading as an…

Computer Vision and Pattern Recognition · Computer Science 2020-11-05 Joon Son Chung , Andrew Senior , Oriol Vinyals , Andrew Zisserman

Change detection typically involves identifying regions with changes between bitemporal images taken at the same location. Besides significant changes, slow changes in bitemporal images are also important in real-life scenarios. For…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Haoxuan Li , Chenxu Wei , Haodong Wang , Xiaomeng Hu , Boyuan An , Lingyan Ran , Baosen Zhang , Jin Jin , Omirzhan Taukebayev , Amirkhan Temirbayev , Junrui Liu , Xiuwei Zhang

Disfluency detection is usually an intermediate step between an automatic speech recognition (ASR) system and a downstream task. By contrast, this paper aims to investigate the task of end-to-end speech recognition and disfluency removal.…

Audio and Speech Processing · Electrical Eng. & Systems 2020-09-30 Paria Jamshid Lou , Mark Johnson

Lipreading, i.e. speech recognition from visual-only recordings of a speaker's face, can be achieved with a processing pipeline based solely on neural networks, yielding significantly better accuracy than conventional methods. Feed-forward…

Computer Vision and Pattern Recognition · Computer Science 2016-02-01 Michael Wand , Jan Koutník , Jürgen Schmidhuber

This paper introduces feature gradient flow, a new technique for interpreting deep learning models in terms of features that are understandable to humans. The gradient flow of a model locally defines nonlinear coordinates in the input data…

Image and Video Processing · Electrical Eng. & Systems 2023-07-26 Yinzhu Jin , Jonathan C. Garneau , P. Thomas Fletcher

This paper proposes a two-stream flow-guided convolutional attention networks for action recognition in videos. The central idea is that optical flows, when properly compensated for the camera motion, can be used to guide attention to the…

Computer Vision and Pattern Recognition · Computer Science 2017-08-31 An Tran , Loong-Fah Cheong

The reliability of using fully convolutional networks (FCNs) has been successfully demonstrated by recent studies in many speech applications. One of the most popular variants of these FCNs is the `U-Net', which is an encoder-decoder…

Audio and Speech Processing · Electrical Eng. & Systems 2021-11-10 Vinay Kothapally , Wei Xia , Shahram Ghorbani , John H. L. Hansen , Wei Xue , Jing Huang