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Audio-driven cospeech video generation typically involves two stages: speech-to-gesture and gesture-to-video. While significant advances have been made in speech-to-gesture generation, synthesizing natural expressions and gestures remains…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Renda Li , Xiaohua Qi , Qiang Ling , Jun Yu , Ziyi Chen , Peng Chang , Mei HanJing Xiao

Recent advancements in video generation have significantly impacted various downstream applications, particularly in identity-preserving video generation (IPT2V). However, existing methods struggle with "copy-paste" artifacts and low…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Jiangchuan Wei , Shiyue Yan , Wenfeng Lin , Boyuan Liu , Renjie Chen , Mingyu Guo

While recent neural text-to-speech (TTS) systems perform remarkably well, they typically require a substantial amount of recordings from the target speaker reading in the desired speaking style. In this work, we present a novel 3-step…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-03 Goeric Huybrechts , Thomas Merritt , Giulia Comini , Bartek Perz , Raahil Shah , Jaime Lorenzo-Trueba

Vivid talking face generation holds immense potential applications across diverse multimedia domains, such as film and game production. While existing methods accurately synchronize lip movements with input audio, they typically ignore…

Computer Vision and Pattern Recognition · Computer Science 2024-06-13 Jiadong Liang , Feng Lu

Retrieval-augmented generation (RAG) grounds large language models with external evidence, but under a limited context budget, the key challenge is deciding which retrieved passages should be injected. We show that retrieval relevance…

Computation and Language · Computer Science 2026-01-27 Zhipeng Song , Yizhi Zhou , Xiangyu Kong , Jiulong Jiao , Xinrui Bao , Xu You , Xueqing Shi , Yuhang Zhou , Heng Qi

Most action recognition solutions rely on dense sampling to precisely cover the informative temporal clip. Extensively searching temporal region is expensive for a real-world application. In this work, we focus on improving the inference…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Chunhui Liu , Xinyu Li , Hao Chen , Davide Modolo , Joseph Tighe

Retrieval-Augmented Generation (RAG) systems face significant performance gaps when applied to technical domains requiring precise information extraction from complex documents. Current evaluation methodologies relying on document-level…

Machine Learning · Computer Science 2025-02-25 Aryan Jadon , Avinash Patil , Shashank Kumar

Facial expression spotting is the preliminary step for micro- and macro-expression analysis. The task of reliably spotting such expressions in video sequences is currently unsolved. The current best systems depend upon optical flow methods…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Chuin Hong Yap , Moi Hoon Yap , Adrian K. Davison , Connah Kendrick , Jingting Li , Sujing Wang , Ryan Cunningham

This paper formulates and presents a solution to the new problem of budgeted semantic video segmentation. Given a video, the goal is to accurately assign a semantic class label to every pixel in the video within a specified time budget.…

Computer Vision and Pattern Recognition · Computer Science 2016-07-27 Behrooz Mahasseni , Sinisa Todorovic , Alan Fern

Implicit neural representations, represented by Neural Radiance Fields (NeRF), have dominated research in 3D computer vision by virtue of high-quality visual results and data-driven benefits. However, their realistic applications are…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Yaokun Li , Chao Gou , Guang Tan

Current query expansion models use pseudo-relevance feedback to improve first-pass retrieval effectiveness; however, this fails when the initial results are not relevant. Instead of building a language model from retrieved results, we…

Information Retrieval · Computer Science 2023-04-27 Iain Mackie , Shubham Chatterjee , Jeffrey Dalton

Talking face generation aims to synthesize a sequence of face images that correspond to a clip of speech. This is a challenging task because face appearance variation and semantics of speech are coupled together in the subtle movements of…

Computer Vision and Pattern Recognition · Computer Science 2019-04-24 Hang Zhou , Yu Liu , Ziwei Liu , Ping Luo , Xiaogang Wang

This paper presents a self-supervised learning framework, named MGF, for general-purpose speech representation learning. In the design of MGF, speech hierarchy is taken into consideration. Specifically, we propose to use generative learning…

Sound · Computer Science 2021-02-04 Yucheng Zhao , Dacheng Yin , Chong Luo , Zhiyuan Zhao , Chuanxin Tang , Wenjun Zeng , Zheng-Jun Zha

Personalised text generation is essential for user-centric information systems, yet most evaluation methods overlook the individuality of users. We introduce \textbf{PREF}, a \textbf{P}ersonalised \textbf{R}eference-free \textbf{E}valuation…

Computation and Language · Computer Science 2025-08-15 Xiao Fu , Hossein A. Rahmani , Bin Wu , Jerome Ramos , Emine Yilmaz , Aldo Lipani

Automated radiology report generation is essential in clinical practice. However, diagnosing radiological images typically requires physicians 5-10 minutes, resulting in a waste of valuable healthcare resources. Existing studies have not…

Multimedia · Computer Science 2025-09-16 Jing Xiao , Hongfei Liu , Ruiqi Dong , Jimin Liu , Haoyong Yu

Retrieval-augmented generation (RAG) methods can enhance the performance of LLMs by incorporating retrieved knowledge chunks into the generation process. In general, the retrieval and generation steps usually have different requirements for…

Information Retrieval · Computer Science 2025-04-16 Peiru Yang , Xintian Li , Zhiyang Hu , Jiapeng Wang , Jinhua Yin , Huili Wang , Lizhi He , Shuai Yang , Shangguang Wang , Yongfeng Huang , Tao Qi

Most existing methods for text-based person retrieval focus on text-to-image person retrieval. Nevertheless, due to the lack of dynamic information provided by isolated frames, the performance is hampered when the person is obscured or…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Xu Zhang , Fan Ni , Guan-Nan Dong , Aichun Zhu , Jianhui Wu , Mingcheng Ni , Hui Liu

High-fidelity facial avatar reconstruction from a monocular video is a significant research problem in computer graphics and computer vision. Recently, Neural Radiance Field (NeRF) has shown impressive novel view rendering results and has…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Yunpeng Bai , Yanbo Fan , Xuan Wang , Yong Zhang , Jingxiang Sun , Chun Yuan , Ying Shan

We introduce a novel method for joint expression and audio-guided talking face generation. Recent approaches either struggle to preserve the speaker identity or fail to produce faithful facial expressions. To address these challenges, we…

Computer Vision and Pattern Recognition · Computer Science 2024-09-19 Sai Tanmay Reddy Chakkera , Aggelina Chatziagapi , Dimitris Samaras

We present GStalker, a 3D audio-driven talking face generation model with Gaussian Splatting for both fast training (40 minutes) and real-time rendering (125 FPS) with a 3$\sim$5 minute video for training material, in comparison with…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Bo Chen , Shoukang Hu , Qi Chen , Chenpeng Du , Ran Yi , Yanmin Qian , Xie Chen