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Robust video scene classification models should capture the spatial (pixel-wise) and temporal (frame-wise) characteristics of a video effectively. Transformer models with self-attention which are designed to get contextualized…

计算机视觉与模式识别 · 计算机科学 2021-10-28 Saurabh Sahu , Palash Goyal

Transformer models have shown great success handling long-range interactions, making them a promising tool for modeling video. However, they lack inductive biases and scale quadratically with input length. These limitations are further…

计算机视觉与模式识别 · 计算机科学 2023-02-14 Javier Selva , Anders S. Johansen , Sergio Escalera , Kamal Nasrollahi , Thomas B. Moeslund , Albert Clapés

In this paper, we propose self-supervised training for video transformers using unlabeled video data. From a given video, we create local and global spatiotemporal views with varying spatial sizes and frame rates. Our self-supervised…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Kanchana Ranasinghe , Muzammal Naseer , Salman Khan , Fahad Shahbaz Khan , Michael Ryoo

Most existing transformer based video instance segmentation methods extract per frame features independently, hence it is challenging to solve the appearance deformation problem. In this paper, we observe the temporal information is…

计算机视觉与模式识别 · 计算机科学 2023-01-24 Zhenghao Zhang , Fangtao Shao , Zuozhuo Dai , Siyu Zhu

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

Inspired by the performance and scalability of autoregressive large language models (LLMs), transformer-based models have seen recent success in the visual domain. This study investigates a transformer adaptation for video prediction with a…

计算机视觉与模式识别 · 计算机科学 2025-10-24 Dean L Slack , G Thomas Hudson , Thomas Winterbottom , Noura Al Moubayed

In this paper, we present an approach for learning a visual representation from the raw spatiotemporal signals in videos. Our representation is learned without supervision from semantic labels. We formulate our method as an unsupervised…

计算机视觉与模式识别 · 计算机科学 2016-07-27 Ishan Misra , C. Lawrence Zitnick , Martial Hebert

Applying image processing algorithms independently to each frame of a video often leads to undesired inconsistent results over time. Developing temporally consistent video-based extensions, however, requires domain knowledge for individual…

计算机视觉与模式识别 · 计算机科学 2018-08-02 Wei-Sheng Lai , Jia-Bin Huang , Oliver Wang , Eli Shechtman , Ersin Yumer , Ming-Hsuan Yang

Most existing real-time deep models trained with each frame independently may produce inconsistent results across the temporal axis when tested on a video sequence. A few methods take the correlations in the video sequence into…

计算机视觉与模式识别 · 计算机科学 2022-02-28 Yifan Liu , Chunhua Shen , Changqian Yu , Jingdong Wang

Self-attention learns pairwise interactions to model long-range dependencies, yielding great improvements for video action recognition. In this paper, we seek a deeper understanding of self-attention for temporal modeling in videos. We…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Bo He , Xitong Yang , Zuxuan Wu , Hao Chen , Ser-Nam Lim , Abhinav Shrivastava

In recent years, 2D Convolutional Networks-based video action recognition has encouragingly gained wide popularity; However, constrained by the lack of long-range non-linear temporal relation modeling and reverse motion information…

计算机视觉与模式识别 · 计算机科学 2021-12-20 Yongkang Zhang , Jun Li , Guoming Wu , Han Zhang , Zhiping Shi , Zhaoxun Liu , Zizhang Wu

In order to autonomously learn wide repertoires of complex skills, robots must be able to learn from their own autonomously collected data, without human supervision. One learning signal that is always available for autonomously collected…

机器人学 · 计算机科学 2017-10-18 Frederik Ebert , Chelsea Finn , Alex X. Lee , Sergey Levine

In video transformers, the time dimension is often treated in the same way as the two spatial dimensions. However, in a scene where objects or the camera may move, a physical point imaged at one location in frame $t$ may be entirely…

计算机视觉与模式识别 · 计算机科学 2021-10-26 Mandela Patrick , Dylan Campbell , Yuki M. Asano , Ishan Misra , Florian Metze , Christoph Feichtenhofer , Andrea Vedaldi , João F. Henriques

Most of the existing video self-supervised methods mainly leverage temporal signals of videos, ignoring that the semantics of moving objects and environmental information are all critical for video-related tasks. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2021-07-09 Wei Li , Dezhao Luo , Bo Fang , Yu Zhou , Weiping Wang

While deep learning surpasses human-level performance in narrow and specific vision tasks, it is fragile and over-confident in classification. For example, minor transformations in perspective, illumination, or object deformation in the…

计算机视觉与模式识别 · 计算机科学 2022-03-15 Maryam Daniali , Edward Kim

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

This paper is on video recognition using Transformers. Very recent attempts in this area have demonstrated promising results in terms of recognition accuracy, yet they have been also shown to induce, in many cases, significant computational…

计算机视觉与模式识别 · 计算机科学 2021-06-14 Adrian Bulat , Juan-Manuel Perez-Rua , Swathikiran Sudhakaran , Brais Martinez , Georgios Tzimiropoulos

We present a large-scale study on unsupervised spatiotemporal representation learning from videos. With a unified perspective on four recent image-based frameworks, we study a simple objective that can easily generalize all these methods to…

计算机视觉与模式识别 · 计算机科学 2021-04-30 Christoph Feichtenhofer , Haoqi Fan , Bo Xiong , Ross Girshick , Kaiming He

Traditional vision-based autonomous driving systems often face difficulties in navigating complex environments when relying solely on single-image inputs. To overcome this limitation, incorporating temporal data such as past image frames or…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Tuong Do , Binh X. Nguyen , Quang D. Tran , Erman Tjiputra , Te-Chuan Chiu , Anh Nguyen

Inspired by the observation that humans are able to process videos efficiently by only paying attention where and when it is needed, we propose an interpretable and easy plug-in spatial-temporal attention mechanism for video action…

计算机视觉与模式识别 · 计算机科学 2019-06-04 Lili Meng , Bo Zhao , Bo Chang , Gao Huang , Wei Sun , Frederich Tung , Leonid Sigal