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Related papers: PATS: Proficiency-Aware Temporal Sampling for Mult…

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We introduce the notion of a Patch Sampling Schedule (PSS), that varies the number of Vision Transformer (ViT) patches used per batch during training. Since all patches are not equally important for most vision objectives (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Bradley McDanel , Chi Phuong Huynh

The scene perception, understanding, and simulation are fundamental techniques for embodied-AI agents, while existing solutions are still prone to segmentation deficiency, dynamic objects' interference, sensor data sparsity, and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Zhiliu Yang , Jinyu Dai , Jianyuan Zhang , Zhu Yang

Segmenting multiple objects (e.g., organs) in medical images often requires an understanding of their topology, which simultaneously quantifies the shape of the objects and their positions relative to each other. This understanding is…

Image and Video Processing · Electrical Eng. & Systems 2024-08-16 Mehmet Bahadir Erden , Sinan Unver , Ilke Ali Gurses , Rustu Turkay , Cigdem Gunduz-Demir

To meet the growing demand for systematic surgical training, wet-lab environments have become indispensable platforms for hands-on practice in ophthalmology. Yet, traditional wet-lab training depends heavily on manual performance…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Negin Ghamsarian , Raphael Sznitman , Klaus Schoeffmann , Jens Kowal

We tackle the problem of predicting saliency maps for videos of dynamic scenes. We note that the accuracy of the maps reconstructed from the gaze data of a fixed number of observers varies with the frame, as it depends on the content of the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Ekta Prashnani , Orazio Gallo , Joohwan Kim , Josef Spjut , Pradeep Sen , Iuri Frosio

Task robust adaptation is a long-standing pursuit in sequential decision-making. Some risk-averse strategies, e.g., the conditional value-at-risk principle, are incorporated in domain randomization or meta reinforcement learning to…

Machine Learning · Computer Science 2025-05-16 Yun Qu , Qi Cheems Wang , Yixiu Mao , Yiqin Lv , Xiangyang Ji

Temporal Action Segmentation (TAS) is an essential task in video analysis, aiming to segment and classify continuous frames into distinct action segments. However, the ambiguous boundaries between actions pose a significant challenge for…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Shuaibing Wang , Shunli Wang , Mingcheng Li , Dingkang Yang , Haopeng Kuang , Ziyun Qian , Lihua Zhang

Soccer video understanding has motivated the creation of datasets for tasks such as temporal action localization, spatiotemporal action detection (STAD), or multiobject tracking (MOT). The annotation of structured sequences of events (who…

Artificial Intelligence · Computer Science 2025-11-21 Jeremie Ochin , Raphael Chekroun , Bogdan Stanciulescu , Sotiris Manitsaris

Existing Temporal Action Detection (TAD) methods typically take a pre-processing step in converting an input varying-length video into a fixed-length snippet representation sequence, before temporal boundary estimation and action…

Computer Vision and Pattern Recognition · Computer Science 2023-03-06 Sauradip Nag , Xiatian Zhu , Yi-Zhe Song , Tao Xiang

Self-supervised approaches for video have shown impressive results in video understanding tasks. However, unlike early works that leverage temporal self-supervision, current state-of-the-art methods primarily rely on tasks from the image…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Ishan Rajendrakumar Dave , Simon Jenni , Mubarak Shah

The pairwise objective paradigms are an important and essential aspect of machine learning. Examples of machine learning approaches that use pairwise objective functions include differential network in face recognition, metric learning,…

Machine Learning · Computer Science 2022-10-04 Hilal AlQuabeh , Aliakbar Abdurahimov

Diffusion models have emerged as a dominant approach for text-to-image generation. Key components such as the human preference alignment and classifier-free guidance play a crucial role in ensuring generation quality. However, their…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Minghao Fu , Guo-Hua Wang , Liangfu Cao , Qing-Guo Chen , Zhao Xu , Weihua Luo , Kaifu Zhang

In this paper, the main task we aim to tackle is the multi-instance semi-supervised video object segmentation across a sequence of frames where only the first-frame box-level ground-truth is provided. Detection-based algorithms are widely…

Computer Vision and Pattern Recognition · Computer Science 2020-04-17 Mingjie Sun , Jimin Xiao , Eng Gee Lim , Bingfeng Zhang , Yao Zhao

Association football is a complex and dynamic sport, with numerous actions occurring simultaneously in each game. Analyzing football videos is challenging and requires identifying subtle and diverse spatio-temporal patterns. Despite recent…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Silvio Giancola , Anthony Cioppa , Julia Georgieva , Johsan Billingham , Andreas Serner , Kerry Peek , Bernard Ghanem , Marc Van Droogenbroeck

Video Anomaly Detection (VAD), aiming to identify abnormalities within a specific context and timeframe, is crucial for intelligent Video Surveillance Systems. While recent deep learning-based VAD models have shown promising results by…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Hao Shen , Lu Shi , Wanru Xu , Yigang Cen , Linna Zhang , Gaoyun An

Articulation perception aims to recover the motion and structure of articulated objects (e.g., drawers and cupboards), and is fundamental to 3D scene understanding in robotics, simulation, and animation. Existing learning-based methods rely…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Yihao Wang , Yang Miao , Wenshuai Zhao , Wenyan Yang , Zihan Wang , Joni Pajarinen , Luc Van Gool , Danda Pani Paudel , Juho Kannala , Xi Wang , Arno Solin

Temporal alignment of fine-grained human actions in videos is important for numerous applications in computer vision, robotics, and mixed reality. State-of-the-art methods directly learn image-based embedding space by leveraging powerful…

Computer Vision and Pattern Recognition · Computer Science 2022-04-27 Taein Kwon , Bugra Tekin , Siyu Tang , Marc Pollefeys

Deep neural networks have recently achieved competitive accuracy for human activity recognition. However, there is room for improvement, especially in modeling long-term temporal importance and determining the activity relevance of…

Computer Vision and Pattern Recognition · Computer Science 2018-08-23 Sibo Song , Ngai-Man Cheung , Vijay Chandrasekhar , Bappaditya Mandal

Real-time video analytics systems typically place models with fewer weights on edge devices to reduce latency. The distribution of video content features may change over time for various reasons (i.e. light and weather change) , leading to…

Computer Vision and Pattern Recognition · Computer Science 2024-06-06 Peng Zhao , Runchu Dong , Guiqin Wang , Cong Zhao

In this work, we address the task of semi-supervised video object segmentation(VOS) and explore how to make efficient use of video property to tackle the challenge of semi-supervision. We propose a novel pipeline called State-Aware…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Xi Chen , Zuoxin Li , Ye Yuan , Gang Yu , Jianxin Shen , Donglian Qi