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Temporal action segmentation is a topic of increasing interest, however, annotating each frame in a video is cumbersome and costly. Weakly supervised approaches therefore aim at learning temporal action segmentation from videos that are…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Mohsen Fayyaz , Juergen Gall

Remote sensing imagery has attracted significant attention in recent years due to its instrumental role in global environmental monitoring, land usage monitoring, and more. As image databases grow each year, performing automatic…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Jielu Zhang , Zhongliang Zhou , Gengchen Mai , Mengxuan Hu , Zihan Guan , Sheng Li , Lan Mu

Observing the close relationship among panoptic, semantic and instance segmentation tasks, we propose to train a universal multi-dataset multi-task segmentation model: DaTaSeg.We use a shared representation (mask proposals with class…

Computer Vision and Pattern Recognition · Computer Science 2023-06-05 Xiuye Gu , Yin Cui , Jonathan Huang , Abdullah Rashwan , Xuan Yang , Xingyi Zhou , Golnaz Ghiasi , Weicheng Kuo , Huizhong Chen , Liang-Chieh Chen , David A Ross

This work focuses on multi-shot semi-supervised video object segmentation (MVOS), which aims at segmenting the target object indicated by an initial mask throughout a video with multiple shots. The existing VOS methods mainly focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Hengrui Hu , Kaining Ying , Henghui Ding

Data-driven approaches to assist operating room (OR) workflow analysis depend on large curated datasets that are time consuming and expensive to collect. On the other hand, we see a recent paradigm shift from supervised learning to…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Muhammad Abdullah Jamal , Omid Mohareri

Existing temporal action detection (TAD) methods rely on a large number of training data with segment-level annotations. Collecting and annotating such a training set is thus highly expensive and unscalable. Semi-supervised TAD (SS-TAD)…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Sauradip Nag , Xiatian Zhu , Yi-Zhe Song , Tao Xiang

Deep learning has been successfully applied to OCT segmentation. However, for data from different manufacturers and imaging protocols, and for different regions of interest (ROIs), it requires laborious and time-consuming data annotation…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Haoran Zhang , Jianlong Yang , Ce Zheng , Shiqing Zhao , Aili Zhang

We propose a novel multi-modal and multi-task architecture for simultaneous low level gesture and surgical task classification in Robot Assisted Surgery (RAS) videos.Our end-to-end architecture is based on the principles of a long…

Computer Vision and Pattern Recognition · Computer Science 2018-05-03 Duygu Sarikaya , Khurshid A. Guru , Jason J. Corso

Robot-assisted therapy can deliver high-dose, task-specific training after neurologic injury, but most systems act primarily at the limb level-engaging the impaired neural circuits only indirectly-which remains a key barrier to truly…

Semantic segmentation in surgical videos has applications in intra-operative guidance, post-operative analytics and surgical education. Segmentation models need to provide accurate and consistent predictions since temporally inconsistent…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Maria Grammatikopoulou , Ricardo Sanchez-Matilla , Felix Bragman , David Owen , Lucy Culshaw , Karen Kerr , Danail Stoyanov , Imanol Luengo

Dense video captioning, a task of localizing meaningful moments and generating relevant captions for videos, often requires a large, expensive corpus of annotated video segments paired with text. In an effort to minimize the annotation…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 Yongrae Jo , Seongyun Lee , Aiden SJ Lee , Hyunji Lee , Hanseok Oh , Minjoon Seo

Current research on human activity recognition (HAR) mainly assumes that training and testing data are drawn from the same distribution to achieve a generalised model, which means all the data are considered to be independent and…

Signal Processing · Electrical Eng. & Systems 2025-03-05 Xiaozhou Ye , Kevin I-Kai Wang

Recent advancements in multimodal large language models (MLLMs) have opened new avenues for video understanding. However, achieving high fidelity in zero-shot video tasks remains challenging. Traditional video processing methods rely…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yiming Zhang , Zhuokai Zhao , Zhaorun Chen , Zenghui Ding , Xianjun Yang , Yining Sun

Referring multi-object tracking (RMOT) is an emerging cross-modal task that aims to locate an arbitrary number of target objects and maintain their identities referred by a language expression in a video. This intricate task involves the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Changcheng Xiao , Qiong Cao , Yujie Zhong , Xiang Zhang , Tao Wang , Canqun Yang , Long Lan

Speech translation models are unable to directly process long audios, like TED talks, which have to be split into shorter segments. Speech translation datasets provide manual segmentations of the audios, which are not available in…

We present IMAS, a method that segments the primary objects in videos without manual annotation in training or inference. Previous methods in unsupervised video object segmentation (UVOS) have demonstrated the effectiveness of motion as…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Long Lian , Zhirong Wu , Stella X. Yu

Purpose: Tracking the 3D motion of the surgical tool and the patient anatomy is a fundamental requirement for computer-assisted skull-base surgery. The estimated motion can be used both for intra-operative guidance and for downstream skill…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 Zhaoshuo Li , Hongchao Shu , Ruixing Liang , Anna Goodridge , Manish Sahu , Francis X. Creighton , Russell H. Taylor , Mathias Unberath

Language-guided segmentation transcends the scope limitations of traditional semantic segmentation, enabling models to segment arbitrary target regions based on natural language instructions. Existing approaches typically adopt a two-stage…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Chao Hao , Jun Xu , Ji Du , Shuo Ye , Ziyue Qiao , Xiaodong Cun , Guangcong Wang , Xubin Zheng , Zitong Yu

Breast lesion segmentation from breast ultrasound (BUS) videos could assist in early diagnosis and treatment. Existing video object segmentation (VOS) methods usually require dense annotation, which is often inaccessible for medical…

Image and Video Processing · Electrical Eng. & Systems 2024-03-05 Jiajun Zeng , Dong Ni , Ruobing Huang

Phase recognition in surgical videos is crucial for enhancing computer-aided surgical systems as it enables automated understanding of sequential procedural stages. Existing methods often rely on fixed temporal windows for video analysis to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Alejandra Pérez , Santiago Rodríguez , Nicolás Ayobi , Nicolás Aparicio , Eugénie Dessevres , Pablo Arbeláez