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Recent advances in text-to-video diffusion models have enabled high-quality video synthesis, but controllable generation remains challenging, particularly under limited data and compute. Existing fine-tuning methods for conditional…

计算机视觉与模式识别 · 计算机科学 2025-12-15 Kinam Kim , Junha Hyung , Jaegul Choo

We propose TubeR: a simple solution for spatio-temporal video action detection. Different from existing methods that depend on either an off-line actor detector or hand-designed actor-positional hypotheses like proposals or anchors, we…

计算机视觉与模式识别 · 计算机科学 2022-05-11 Jiaojiao Zhao , Yanyi Zhang , Xinyu Li , Hao Chen , Shuai Bing , Mingze Xu , Chunhui Liu , Kaustav Kundu , Yuanjun Xiong , Davide Modolo , Ivan Marsic , Cees G. M. Snoek , Joseph Tighe

While Transformers have revolutionized machine learning on various data, existing Transformers for temporal graphs face limitations in (1) restricted receptive fields, (2) overhead of subgraph extraction, and (3) suboptimal generalization…

机器学习 · 计算机科学 2024-12-03 Kay Liu , Jiahao Ding , MohamadAli Torkamani , Philip S. Yu

Temporal sentence grounding (TSG) is a highly challenging task aiming to localize the temporal segment within an untrimmed video corresponding to a given natural language description. Benefiting from the design of learnable queries, the…

计算机视觉与模式识别 · 计算机科学 2025-08-07 Yifan Wang , Ziyi Liu , Xiaolong Sun , Jiawei Wang , Hongmin Liu

Multi-horizon forecasting problems often contain a complex mix of inputs -- including static (i.e. time-invariant) covariates, known future inputs, and other exogenous time series that are only observed historically -- without any prior…

机器学习 · 统计学 2020-09-29 Bryan Lim , Sercan O. Arik , Nicolas Loeff , Tomas Pfister

Temporal Action Localization (TAL) is a challenging task in video understanding that aims to identify and localize actions within a video sequence. Recent studies have emphasized the importance of applying long-term temporal context…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Tuan N. Tang , Kwonyoung Kim , Kwanghoon Sohn

Spatio-temporal traffic forecasting is challenging due to complex temporal patterns, dynamic spatial structures, and diverse input formats. Although Transformer-based models offer strong global modeling, they often struggle with rigid…

人工智能 · 计算机科学 2025-08-20 Jiayu Fang , Zhiqi Shao , S T Boris Choy , Junbin Gao

Dynamic graph-level embedding aims to capture structural evolution in networks, which is essential for modeling real-world scenarios. However, existing methods face two critical yet under-explored issues: Structural Visit Bias, where random…

机器学习 · 计算机科学 2025-08-22 Haodi Zhong , Liuxin Zou , Di Wang , Bo Wang , Zhenxing Niu , Quan Wang

We present our solution to the BinEgo-360 Challenge at ICCV 2025, which focuses on temporal action localization (TAL) in multi-perspective and multi-modal video settings. The challenge provides a dataset containing panoramic, third-person,…

计算机视觉与模式识别 · 计算机科学 2025-12-15 Anh-Kiet Duong , Petra Gomez-Krämer

Deep learning models, in particular \textit{image} models, have recently gained generalisability and robustness. %are becoming more general and robust by the day. In this work, we propose to exploit such advances in the realm of…

计算机视觉与模式识别 · 计算机科学 2024-11-05 Tanay Agrawal , Abid Ali , Antitza Dantcheva , Francois Bremond

Weakly-supervised temporal action localization aims to recognize and localize action segments in untrimmed videos given only video-level action labels for training. Without the boundary information of action segments, existing methods…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Bo He , Xitong Yang , Le Kang , Zhiyu Cheng , Xin Zhou , Abhinav Shrivastava

Temporal action proposal generation aims to estimate temporal intervals of actions in untrimmed videos, which is a challenging yet important task in the video understanding field. The proposals generated by current methods still suffer from…

计算机视觉与模式识别 · 计算机科学 2021-03-25 Zhiwu Qing , Haisheng Su , Weihao Gan , Dongliang Wang , Wei Wu , Xiang Wang , Yu Qiao , Junjie Yan , Changxin Gao , Nong Sang

The goal of Temporal Action Localization (TAL) is to find the categories and temporal boundaries of actions in an untrimmed video. Most TAL methods rely heavily on action recognition models that are sensitive to action labels rather than…

计算机视觉与模式识别 · 计算机科学 2023-09-26 Hao Zhang , Chunyan Feng , Jiahui Yang , Zheng Li , Caili Guo

Recently, temporal action localization (TAL), i.e., finding specific action segments in untrimmed videos, has attracted increasing attentions of the computer vision community. State-of-the-art solutions for TAL involves evaluating the…

计算机视觉与模式识别 · 计算机科学 2021-03-01 Peisen Zhao , Lingxi Xie , Chen Ju , Ya Zhang , Yanfeng Wang , Qi Tian

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,…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Qi Liu , Xinchen Liu , Kun Liu , Xiaoyan Gu , Wu Liu

Temporal action localization (TAL) is a fundamental yet challenging task in video understanding. Existing TAL methods rely on pre-training a video encoder through action classification supervision. This results in a task discrepancy problem…

计算机视觉与模式识别 · 计算机科学 2021-11-01 Mengmeng Xu , Juan-Manuel Perez-Rua , Xiatian Zhu , Bernard Ghanem , Brais Martinez

Video segmentation encompasses a wide range of categories of problem formulation, e.g., object, scene, actor-action and multimodal video segmentation, for delineating task-specific scene components with pixel-level masks. Recently,…

计算机视觉与模式识别 · 计算机科学 2023-10-20 Rezaul Karim , Richard P. Wildes

The ability to identify and temporally segment fine-grained human actions throughout a video is crucial for robotics, surveillance, education, and beyond. Typical approaches decouple this problem by first extracting local spatiotemporal…

计算机视觉与模式识别 · 计算机科学 2016-11-17 Colin Lea , Michael D. Flynn , Rene Vidal , Austin Reiter , Gregory D. Hager

Temporal Action Detection (TAD), the task of localizing and classifying actions in untrimmed video, remains challenging due to action overlaps and variable action durations. Recent findings suggest that TAD performance is dependent on the…

计算机视觉与模式识别 · 计算机科学 2024-09-09 Aglind Reka , Diana Laura Borza , Dominick Reilly , Michal Balazia , Francois Bremond

Temporal action proposal generation is an important and challenging task in video understanding, which aims at detecting all temporal segments containing action instances of interest. The existing proposal generation approaches are…

计算机视觉与模式识别 · 计算机科学 2021-08-20 Jing Tan , Jiaqi Tang , Limin Wang , Gangshan Wu