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Discriminative representation is essential to keep a unique identifier for each target in Multiple object tracking (MOT). Some recent MOT methods extract features of the bounding box region or the center point as identity embeddings.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Hao Ren , Shoudong Han , Huilin Ding , Ziwen Zhang , Hongwei Wang , Faquan Wang

Action segmentation is a challenging task in high-level process analysis, typically performed on video or kinematic data obtained from various sensors. This work presents two contributions related to action segmentation on kinematic data.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Adam Goldbraikh , Omer Shubi , Or Rubin , Carla M Pugh , Shlomi Laufer

Fine-grained video action recognition can be conceptualized as a video-text matching problem. Previous approaches often rely on global video semantics to consolidate video embeddings, which can lead to misalignment in video-text pairs due…

Computer Vision and Pattern Recognition · Computer Science 2024-10-21 Enqi Liu , Liyuan Pan , Yan Yang , Yiran Zhong , Zhijing Wu , Xinxiao Wu , Liu Liu

Convolutional neural networks like U-Net excel in medical image segmentation, while attention mechanisms and KAN enhance feature extraction. Meta's SAM 2 uses Vision Transformers for prompt-based segmentation without fine-tuning. However,…

Image and Video Processing · Electrical Eng. & Systems 2025-04-08 Mengyuan Liu , Yixiao Chen , Anning Tian , Xinmeng Wu , Mozhi Shen , Tianchou Gong , Jeongkyu Lee

High-fidelity semantic segmentation of magnetic resonance volumes is critical for estimating tissue morphometry and relaxation parameters in both clinical and research applications. While manual segmentation is accepted as the…

Image and Video Processing · Electrical Eng. & Systems 2019-02-07 Arjun D. Desai , Garry E. Gold , Brian A. Hargreaves , Akshay S. Chaudhari

Over the past few years, a significant progress has been made in deep convolutional neural networks (CNNs)-based image recognition. This is mainly due to the strong ability of such networks in mining discriminative object pose and parts…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Asish Bera , Zachary Wharton , Yonghuai Liu , Nik Bessis , Ardhendu Behera

Automatic surgical phase recognition plays a vital role in robot-assisted surgeries. Existing methods ignored a pivotal problem that surgical phases should be classified by learning segment-level semantics instead of solely relying on…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Xinpeng Ding , Xiaomeng Li

Fine-grained 3D part segmentation is crucial for enabling embodied AI systems to perform complex manipulation tasks, such as interacting with specific functional components of an object. However, existing interactive segmentation methods…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Bojun Zhang , Hangjian Ye , Hao Zheng , Jianzheng Huang , Zhengyu Lin , Zhenhong Guo , Feng Zheng

Action recognition from videos, i.e., classifying a video into one of the pre-defined action types, has been a popular topic in the communities of artificial intelligence, multimedia, and signal processing. However, existing methods usually…

Computer Vision and Pattern Recognition · Computer Science 2022-09-05 Xiaodong Chen , Xinchen Liu , Wu Liu , Kun Liu , Dong Wu , Yongdong Zhang , Tao Mei

To assist surgeons in the operating theatre, surgical phase recognition is critical for developing computer-assisted surgical systems, which requires comprehensive understanding of surgical videos. Although existing studies made great…

Computer Vision and Pattern Recognition · Computer Science 2023-11-23 Zhen Chen , Yuhao Zhai , Jun Zhang , Jinqiao Wang

The challenges of high intra-class variance yet low inter-class fluctuations in fine-grained visual categorization are more severe with few labeled samples, \textit{i.e.,} Fine-Grained categorization problems under the Few-Shot setting…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Huaxi Huang , Junjie Zhang , Jian Zhang , Qiang Wu , Chang Xu

Affect is often expressed via non-verbal body language such as actions/gestures, which are vital indicators for human behaviors. Recent studies on recognition of fine-grained actions/gestures in monocular images have mainly focused on…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Ardhendu Behera , Zachary Wharton , Morteza Ghahremani , Swagat Kumar , Nik Bessis

Semantic segmentation is a crucial task for robot navigation and safety. However, it requires huge amounts of pixelwise annotations to yield accurate results. While recent progress in computer vision algorithms has been heavily boosted by…

Computer Vision and Pattern Recognition · Computer Science 2019-10-23 Alina Marcu , Dragos Costea , Vlad Licaret , Marius Leordeanu

There exist a wide range of intra class variations of the same actions and inter class similarity among the actions, at the same time, which makes the action recognition in videos very challenging. In this paper, we present a novel…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Chhavi Dhiman , Dinesh Kumar Vishwakarma , Paras Aggarwal

Despite the growing discriminative capabilities of modern deep learning methods for recognition tasks, the inner workings of the state-of-art models still remain mostly black-boxes. In this paper, we propose a systematic interpretation of…

Computer Vision and Pattern Recognition · Computer Science 2017-11-27 Jingxuan Hou , Tae Soo Kim , Austin Reiter

Wound care is often challenged by the economic and logistical burdens that consistently afflict patients and hospitals worldwide. In recent decades, healthcare professionals have sought support from computer vision and machine learning…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Remi Chierchia , Léo Lebrat , David Ahmedt-Aristizabal , Yulia Arzhaeva , Olivier Salvado , Clinton Fookes , Rodrigo Santa Cruz

Accurate lumbar spine segmentation is crucial for diagnosing spinal disorders. Existing methods typically use coarse-grained segmentation strategies that lack the fine detail needed for precise diagnosis. Additionally, their reliance on…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Sheng Lian , Jianlong Cai , Dengfeng Pan , Guang-Yong Chen , Hao Xu , Fan Zhang , Guodong Fan , Shuo Li

We present an approach for weakly supervised learning of human actions. Given a set of videos and an ordered list of the occurring actions, the goal is to infer start and end frames of the related action classes within the video and to…

Computer Vision and Pattern Recognition · Computer Science 2017-10-10 Alexander Richard , Hilde Kuehne , Juergen Gall

Fine-grained visual recognition is to classify objects with visually similar appearances into subcategories, which has made great progress with the development of deep CNNs. However, handling subtle differences between different…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Yifan Zhao , Jia Li , Xiaowu Chen , Yonghong Tian

On public benchmarks, current action recognition techniques have achieved great success. However, when used in real-world applications, e.g. sport analysis, which requires the capability of parsing an activity into phases and…

Computer Vision and Pattern Recognition · Computer Science 2020-04-15 Dian Shao , Yue Zhao , Bo Dai , Dahua Lin