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From clinical healthcare to daily living, continuous sensor monitoring across multiple modalities has shown great promise for real-world intelligent decision-making but also faces various challenges. In this work, we introduce MAESTRO, a…

Machine Learning · Computer Science 2025-10-01 Payal Mohapatra , Yueyuan Sui , Akash Pandey , Stephen Xia , Qi Zhu

Video Diffusion Transformers have revolutionized high-fidelity video generation but suffer from the massive computational burden of self-attention. While sparse attention provides a promising acceleration solution, existing methods…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Wentai Zhang , Ronghui Xi , Shiyao Peng , Jiayu Huang , Haoran Luo , Zichen Tang , Haihong E

We introduce InstructVid2Vid, an end-to-end diffusion-based methodology for video editing guided by human language instructions. Our approach empowers video manipulation guided by natural language directives, eliminating the need for…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Bosheng Qin , Juncheng Li , Siliang Tang , Tat-Seng Chua , Yueting Zhuang

Recent research has witnessed the advances in facial image editing tasks. For video editing, however, previous methods either simply apply transformations frame by frame or utilize multiple frames in a concatenated or iterative fashion,…

Computer Vision and Pattern Recognition · Computer Science 2020-07-06 Meng Cao , Haozhi Huang , Hao Wang , Xuan Wang , Li Shen , Sheng Wang , Linchao Bao , Zhifeng Li , Jiebo Luo

Diffusion-based methods can generate realistic images and videos, but they struggle to edit existing objects in a video while preserving their appearance over time. This prevents diffusion models from being applied to natural video editing…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Wenhao Chai , Xun Guo , Gaoang Wang , Yan Lu

We propose A^2-Edit, a unified inpainting framework for arbitrary object categories, which allows users to replace any target region with a reference object using only a coarse mask. To address the issues of severe homogenization and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Huayu Zheng , Guangzhao Li , Baixuan Zhao , Siqi Luo , Hantao Jiang , Guangtao Zhai , Xiaohong Liu

Even though large-scale text-to-image generative models show promising performance in synthesizing high-quality images, applying these models directly to image editing remains a significant challenge. This challenge is further amplified in…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Shutong Jin , Ruiyu Wang , Florian T. Pokorny

Scene Text Editing (STE) is a challenging research problem, that primarily aims towards modifying existing texts in an image while preserving the background and the font style of the original text. Despite its utility in numerous real-world…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Alloy Das , Sanket Biswas , Prasun Roy , Subhankar Ghosh , Umapada Pal , Michael Blumenstein , Josep Lladós , Saumik Bhattacharya

Diffusion transformers enable flexible generative modeling for video. However, it is still technically challenging and computationally expensive to generate high-resolution videos with rich semantics and complex motion. Similar to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-16 Xunnong Xu , Mengying Cao

Video colour editing is a crucial task for content creation, yet existing solutions either require painstaking frame-by-frame manipulation or produce unrealistic results with temporal artefacts. We present a practical, training-free…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Chaitat Utintu , Pinaki Nath Chowdhury , Aneeshan Sain , Subhadeep Koley , Ayan Kumar Bhunia , Yi-Zhe Song

Recent advances in customized video generation have enabled users to create videos tailored to both specific subjects and motion trajectories. However, existing methods often require complicated test-time fine-tuning and struggle with…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Yujie Wei , Shiwei Zhang , Hangjie Yuan , Xiang Wang , Haonan Qiu , Rui Zhao , Yutong Feng , Feng Liu , Zhizhong Huang , Jiaxin Ye , Yingya Zhang , Hongming Shan

Although it has been widely discussed in video surveillance, background subtraction is still an open problem in the context of complex scenarios, e.g., dynamic backgrounds, illumination variations, and indistinct foreground objects. To…

Computer Vision and Pattern Recognition · Computer Science 2015-02-03 Liang Lin , Yuanlu Xu , Xiaodan Liang , Jianhuang Lai

Diffusion models have recently emerged as powerful tools for camera simulation, enabling both geometric transformations and realistic optical effects. Among these, image-based bokeh rendering has shown promising results, but diffusion for…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Yang Yang , Siming Zheng , Qirui Yang , Jinwei Chen , Boxi Wu , Xiaofei He , Deng Cai , Bo Li , Peng-Tao Jiang

Document-based question answering (QA) increasingly includes abstract questions that require synthesizing scattered information from long documents or across multiple documents into coherent answers. However, this setting is still poorly…

Computation and Language · Computer Science 2026-05-12 Shu Wang , Shansong Zhou , Xinyang Wang , Shiwei Wang , Hulong Wu , Yixiang Fang

Audio-Visual Question Answering (AVQA) requires models to effectively utilize both visual and auditory modalities to answer complex and diverse questions about audio-visual scenes. However, existing methods lack sufficient flexibility and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Jiayu Zhang , Shuo Ye , Qilang Ye , Xun Lin , Zihan Song , Zitong Yu

This article introduces Lester, a novel method to automatically synthetise retro-style 2D animations from videos. The method approaches the challenge mainly as an object segmentation and tracking problem. Video frames are processed with the…

Computer Vision and Pattern Recognition · Computer Science 2024-02-16 Ruben Tous

Vision-language-action models have gained significant attention for their ability to model multimodal sequences in embodied instruction following tasks. However, most existing models rely on causal attention, which we find suboptimal for…

Robotics · Computer Science 2026-01-21 Yueen Ma , Dafeng Chi , Shiguang Wu , Yuecheng Liu , Yuzheng Zhuang , Irwin King

Video-to-video synthesis poses significant challenges in maintaining character consistency, smooth temporal transitions, and preserving visual quality during fast motion. While recent fully cross-frame self-attention mechanisms have…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Tanvir Mahmud , Mustafa Munir , Radu Marculescu , Diana Marculescu

Unsupervised Video Object Segmentation (VOS) aims at identifying the contours of primary foreground objects in videos without any prior knowledge. However, previous methods do not fully use spatial-temporal context and fail to tackle this…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Ping Li , Yu Zhang , Li Yuan , Huaxin Xiao , Binbin Lin , Xianghua Xu

Video generation has witnessed remarkable progress with the advent of deep generative models, particularly diffusion models. While existing methods excel in generating high-quality videos from text prompts or single images, personalized…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Yufan Deng , Xun Guo , Yizhi Wang , Jacob Zhiyuan Fang , Angtian Wang , Shenghai Yuan , Yiding Yang , Bo Liu , Haibin Huang , Chongyang Ma