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Multiple object tracking (MOT) involves identifying multiple targets and assigning them corresponding IDs within a video sequence, where occlusions are often encountered. Recent methods address occlusions using appearance cues through…

Computer Vision and Pattern Recognition · Computer Science 2024-09-13 Rongzihan Song , Zhenyu Weng , Huiping Zhuang , Jinchang Ren , Yongming Chen , Zhiping Lin

Correlation filter-based trackers heavily suffer from the problem of multiple peaks in their response maps incurred by occlusions. Moreover, the whole tracking pipeline may break down due to the uncertainties brought by shifting among…

Computer Vision and Pattern Recognition · Computer Science 2021-01-05 Zheng Zhang , T. T. Wong

Video Temporal Grounding (VTG) involves Moment Retrieval (MR) and Highlight Detection (HD) based on textual queries. For this, most methods rely solely on final-layer features of frozen large pre-trained backbones, limiting their…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 David Pujol-Perich , Sergio Escalera , Albert Clapés

Occlusions between consecutive frames have long posed a significant challenge in optical flow estimation. The inherent ambiguity introduced by occlusions directly violates the brightness constancy constraint and considerably hinders…

Computer Vision and Pattern Recognition · Computer Science 2023-11-30 Shangkun Sun , Jiaming Liu , Thomas H. Li , Huaxia Li , Guoqing Liu , Wei Gao

The detection of anomalous tissue regions (ATRs) within affected tissues is crucial in clinical diagnosis and pathological studies. Conventional automated ATR detection methods, primarily based on histology images alone, falter in cases…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Kaichen Xu , Qilong Wu , Yan Lu , Yinan Zheng , Wenlin Li , Xingjie Tang , Jun Wang , Xiaobo Sun

Medical vision foundation models remain limited in downstream tasks, particularly volumetric medical image segmentation. While fine-tuning on labeled target-domain data improves performance, existing approaches typically rely on randomly…

Image and Video Processing · Electrical Eng. & Systems 2026-05-07 Jin Yang , Daniel S. Marcus , Aristeidis Sotiras

Tracking a point through a video can be a challenging task due to uncertainty arising from visual obfuscations, such as appearance changes and occlusions. Although current state-of-the-art discriminative models excel in regressing long-term…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Mattie Tesfaldet , Adam W. Harley , Konstantinos G. Derpanis , Derek Nowrouzezahrai , Christopher Pal

Markerless motion tracking has advanced rapidly in the past 10 years and currently offers powerful opportunities for behavioural, clinical, and biomechanical research. While several specialised toolkits provide high performance for specific…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Hristo Dimitrov , Giulia Dominijanni , Viktorija Pavalkyte , Tamar R. Makin

Football player tracking is challenged by frequent occlusions, similar appearances, and rapid motion in crowded scenes. This paper presents a lightweight SAM-based tracking method combining the Segment Anything Model (SAM) with CSRT…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Chamath Ranasinghe , Uthayasanker Thayasivam

Sparse representation has been widely studied in visual tracking, which has shown promising tracking performance. Despite a lot of progress, the visual tracking problem is still a challenging task due to appearance variations over time. In…

Computer Vision and Pattern Recognition · Computer Science 2016-05-03 Xue Yang , Fei Han , Hua Wang , Hao Zhang

Persistent monitoring of a spatiotemporal fluid process requires data sampling and predictive modeling of the process being monitored. In this paper we present PASST algorithm: Predictive-model based Adaptive Sampling of a Spatio-Temporal…

Robotics · Computer Science 2023-04-04 Sandeep Manjanna , Tom Z. Jiahao , M. Ani Hsieh

Improved surgical skill is generally associated with improved patient outcomes, although assessment is subjective; labour-intensive; and requires domain specific expertise. Automated data driven metrics can alleviate these difficulties, as…

Dense object tracking, the ability to localize specific object points with pixel-level accuracy, is an important computer vision task with numerous downstream applications in robotics. Existing approaches either compute dense keypoint…

Robotics · Computer Science 2021-12-14 Mel Vecerik , Jackie Kay , Raia Hadsell , Lourdes Agapito , Jon Scholz

Surgical video segmentation is a critical task in computer-assisted surgery and is vital for enhancing surgical quality and patient outcomes. Recently, the Segment Anything Model 2 (SAM2) framework has shown superior advancements in image…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Haofeng Liu , Erli Zhang , Junde Wu , Mingxuan Hong , Yueming Jin

The Segment Anything Model (SAM) has demonstrated strong performance in image segmentation of natural scene images. However, its effectiveness diminishes markedly when applied to specific scientific domains, such as Scanning Probe…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Yao Shen , Ziwei Wei , Chunmeng Liu , Shuming Wei , Qi Zhao , Kaiyang Zeng , Guangyao Li

The Fast Fourier Transform(FFT) is a classic signal processing algorithm that is utilized in a wide range of applications. For image processing, FFT computes on every pixel's value of an image, regardless of their properties in frequency…

Signal Processing · Electrical Eng. & Systems 2020-02-25 Sheng Shi , Runkai Yang , Haihang You

Conventional computer-assisted orthopaedic navigation systems rely on the tracking of dedicated optical markers for patient poses, which makes the surgical workflow more invasive, tedious, and expensive. Visual tracking has recently been…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Xue Hu , Anh Nguyen , Ferdinando Rodriguez y Baena

Automatic extraction of vessel skeletons is crucial for many clinical applications. However, achieving topologically faithful delineation of thin vessel skeletons remains highly challenging, primarily due to frequent discontinuities and the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yaoyu Liu , Minghui Zhang , Junjun He , Yun Gu

Multi-modal human action segmentation is a critical and challenging task with a wide range of applications. Nowadays, the majority of approaches concentrate on the fusion of dense signals (i.e., RGB, optical flow, and depth maps). However,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Qi Liu , Xinchen Liu , Kun Liu , Xiaoyan Gu , Wu Liu

Diffusion models represent a powerful family of generative models widely used for image and video generation. However, the time-consuming deployment, long inference time, and requirements on large memory hinder their applications on…

Machine Learning · Computer Science 2025-04-18 Kafeng Wang , Jianfei Chen , He Li , Zhenpeng Mi , Jun Zhu