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相关论文: t-EVA: Time-Efficient t-SNE Video Annotation

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Video action detection (spatio-temporal action localization) is usually the starting point for human-centric intelligent analysis of videos nowadays. It has high practical impacts for many applications across robotics, security, healthcare,…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Xin Hu , Zhenyu Wu , Hao-Yu Miao , Siqi Fan , Taiyu Long , Zhenyu Hu , Pengcheng Pi , Yi Wu , Zhou Ren , Zhangyang Wang , Gang Hua

Deep learning has made significant strides in video understanding tasks, but the computation required to classify lengthy and massive videos using clip-level video classifiers remains impractical and prohibitively expensive. To address this…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Muhammad Adi Nugroho , Sangmin Woo , Sumin Lee , Changick Kim

Large-scale annotated datasets allow AI systems to learn from and build upon the knowledge of the crowd. Many crowdsourcing techniques have been developed for collecting image annotations. These techniques often implicitly rely on the fact…

人机交互 · 计算机科学 2016-10-07 Gunnar A. Sigurdsson , Olga Russakovsky , Ali Farhadi , Ivan Laptev , Abhinav Gupta

Recent action recognition models have achieved impressive results by integrating objects, their locations and interactions. However, obtaining dense structured annotations for each frame is tedious and time-consuming, making these methods…

计算机视觉与模式识别 · 计算机科学 2022-11-30 Elad Ben-Avraham , Roei Herzig , Karttikeya Mangalam , Amir Bar , Anna Rohrbach , Leonid Karlinsky , Trevor Darrell , Amir Globerson

Despite significant progress in semi-supervised learning for image object detection, several key issues are yet to be addressed for video object detection: (1) Achieving good performance for supervised video object detection greatly depends…

计算机视觉与模式识别 · 计算机科学 2023-11-14 Tanvir Mahmud , Chun-Hao Liu , Burhaneddin Yaman , Diana Marculescu

When visualizing a high-dimensional dataset, dimension reduction techniques are commonly employed which provide a single 2-dimensional view of the data. We describe ENS-t-SNE: an algorithm for Embedding Neighborhoods Simultaneously that…

机器学习 · 计算机科学 2024-04-02 Jacob Miller , Vahan Huroyan , Raymundo Navarrete , Md Iqbal Hossain , Stephen Kobourov

Video-based person re-identification (Re-ID) aims at matching video sequences of pedestrians across non-overlapping cameras. It is a practical yet challenging task of how to embed spatial and temporal information of a video into its feature…

计算机视觉与模式识别 · 计算机科学 2019-08-06 Chih-Ting Liu , Chih-Wei Wu , Yu-Chiang Frank Wang , Shao-Yi Chien

Spatio-temporal action detection is an important and challenging problem in video understanding. However, the application of the existing large-scale spatio-temporal action datasets in specific fields is limited, and there is currently no…

计算机视觉与模式识别 · 计算机科学 2022-04-27 Fan Yang

We study self-supervised video representation learning, which is a challenging task due to 1) lack of labels for explicit supervision; 2) unstructured and noisy visual information. Existing methods mainly use contrastive loss with video…

计算机视觉与模式识别 · 计算机科学 2021-08-18 Deng Huang , Wenhao Wu , Weiwen Hu , Xu Liu , Dongliang He , Zhihua Wu , Xiangmiao Wu , Mingkui Tan , Errui Ding

The increasing ubiquity of video content and the corresponding demand for efficient access to meaningful information have elevated video summarization and video highlights as a vital research area. However, many state-of-the-art methods…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Pritam Mishra , Coloma Ballester , Dimosthenis Karatzas

We present a convolution-free approach to video classification built exclusively on self-attention over space and time. Our method, named "TimeSformer," adapts the standard Transformer architecture to video by enabling spatiotemporal…

计算机视觉与模式识别 · 计算机科学 2021-06-10 Gedas Bertasius , Heng Wang , Lorenzo Torresani

The ability to quickly annotate medical imaging data plays a critical role in training deep learning frameworks for segmentation. Doing so for image volumes or video sequences is even more pressing as annotating these is particularly…

计算机视觉与模式识别 · 计算机科学 2021-07-20 Laurent Lejeune , Raphael Sznitman

In this paper, we introduce T-DEED, a Temporal-Discriminability Enhancer Encoder-Decoder for Precise Event Spotting in sports videos. T-DEED addresses multiple challenges in the task, including the need for discriminability among frame…

计算机视觉与模式识别 · 计算机科学 2024-04-12 Artur Xarles , Sergio Escalera , Thomas B. Moeslund , Albert Clapés

Training on large-scale datasets can boost the performance of video instance segmentation while the annotated datasets for VIS are hard to scale up due to the high labor cost. What we possess are numerous isolated filed-specific datasets,…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Rongkun Zheng , Lu Qi , Xi Chen , Yi Wang , Kun Wang , Yu Qiao , Hengshuang Zhao

Video editing is a critical component of content creation that transforms raw footage into coherent works aligned with specific visual and narrative objectives. Existing approaches face two major challenges: temporal inconsistencies due to…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Jianhui Wang , Yinda Chen , Yangfan He , Xinyuan Song , Yi Xin , Dapeng Zhang , Zhongwei Wan , Bin Li , Rongchao Zhang

Large-scale text-to-image (T2I) diffusion models have been extended for text-guided video editing, yielding impressive zero-shot video editing performance. Nonetheless, the generated videos usually show spatial irregularities and temporal…

计算机视觉与模式识别 · 计算机科学 2024-08-29 Yuanzhi Wang , Yong Li , Xiaoya Zhang , Xin Liu , Anbo Dai , Antoni B. Chan , Zhen Cui

Exchanging data as character-separated values (CSV) is slow, cumbersome and error-prone. Especially for time-series data, which is common in Activity Recognition, synchronizing several independently recorded sensors is challenging. Adding…

数据库 · 计算机科学 2019-08-05 Philipp M. Scholl , Benjamin Völker , Bernd Becker , Kristof Van Laerhoven

Deep neural networks (DNNs) have demonstrated exceptional performance across various image segmentation tasks. However, the process of preparing datasets for training segmentation DNNs is both labor-intensive and costly, as it typically…

计算机视觉与模式识别 · 计算机科学 2025-01-24 Yixin Zhang , Shen Zhao , Hanxue Gu , Maciej A. Mazurowski

Real-time video analysis remains a challenging problem in computer vision, requiring efficient processing of both spatial and temporal information while maintaining computational efficiency. Existing approaches often struggle to balance…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Shahla John

Few-shot video object segmentation aims to reduce annotation costs; however, existing methods still require abundant dense frame annotations for training, which are scarce in the medical domain. We investigate an extremely low-data regime…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Zixuan Zheng , Yilei Shi , Chunlei Li , Jingliang Hu , Xiao Xiang Zhu , Lichao Mou