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相关论文: A Large-Scale Study on Unsupervised Spatiotemporal…

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Self-supervised learning has drawn attention through its effectiveness in learning in-domain representations with no ground-truth annotations; in particular, it is shown that properly designed pretext tasks (e.g., contrastive prediction…

计算机视觉与模式识别 · 计算机科学 2022-01-17 Jonghwan Mun , Minchul Shin , Gunsoo Han , Sangho Lee , Seongsu Ha , Joonseok Lee , Eun-Sol Kim

We propose a method for generating a temporally remapped video that matches the desired target duration while maximally preserving natural video dynamics. Our approach trains a neural network through self-supervision to recognize and…

计算机视觉与模式识别 · 计算机科学 2022-05-12 Simon Jenni , Markus Woodson , Fabian Caba Heilbron

Spatio-temporal feature learning is of central importance for action recognition in videos. Existing deep neural network models either learn spatial and temporal features independently (C2D) or jointly with unconstrained parameters (C3D).…

计算机视觉与模式识别 · 计算机科学 2019-03-05 Chao Li , Qiaoyong Zhong , Di Xie , Shiliang Pu

Large-scale labeled data are generally required to train deep neural networks in order to obtain better performance in visual feature learning from images or videos for computer vision applications. To avoid extensive cost of collecting and…

计算机视觉与模式识别 · 计算机科学 2019-02-19 Longlong Jing , Yingli Tian

We study pre-training representations for decision-making using video data, which is abundantly available for tasks such as game agents and software testing. Even though significant empirical advances have been made on this problem, a…

机器学习 · 计算机科学 2024-03-21 Dipendra Misra , Akanksha Saran , Tengyang Xie , Alex Lamb , John Langford

Unsupervised visual representation learning remains a largely unsolved problem in computer vision research. Among a big body of recently proposed approaches for unsupervised learning of visual representations, a class of self-supervised…

计算机视觉与模式识别 · 计算机科学 2019-01-28 Alexander Kolesnikov , Xiaohua Zhai , Lucas Beyer

This paper explores feature prediction as a stand-alone objective for unsupervised learning from video and introduces V-JEPA, a collection of vision models trained solely using a feature prediction objective, without the use of pretrained…

计算机视觉与模式识别 · 计算机科学 2024-04-15 Adrien Bardes , Quentin Garrido , Jean Ponce , Xinlei Chen , Michael Rabbat , Yann LeCun , Mahmoud Assran , Nicolas Ballas

Using offline training schemes, researchers have tackled the event segmentation problem by providing full or weak-supervision through manually annotated labels or self-supervised epoch-based training. Most works consider videos that are at…

计算机视觉与模式识别 · 计算机科学 2021-07-20 Ramy Mounir , Roman Gula , Jörn Theuerkauf , Sudeep Sarkar

Spatio-temporal convolution often fails to learn motion dynamics in videos and thus an effective motion representation is required for video understanding in the wild. In this paper, we propose a rich and robust motion representation based…

计算机视觉与模式识别 · 计算机科学 2021-11-03 Heeseung Kwon , Manjin Kim , Suha Kwak , Minsu Cho

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

Video transformers have recently emerged as a competitive alternative to 3D CNNs for video understanding. However, due to their large number of parameters and reduced inductive biases, these models require supervised pretraining on…

计算机视觉与模式识别 · 计算机科学 2022-04-01 Jue Wang , Gedas Bertasius , Du Tran , Lorenzo Torresani

We are interested in learning models of intuitive physics similar to the ones that animals use for navigation, manipulation and planning. In addition to learning general physical principles, however, we are also interested in learning ``on…

计算机视觉与模式识别 · 计算机科学 2019-05-28 Sébastien Ehrhardt , Aron Monszpart , Niloy J. Mitra , Andrea Vedaldi

For visual estimation of optical flow, a crucial function for many vision tasks, unsupervised learning, using the supervision of view synthesis has emerged as a promising alternative to supervised methods, since ground-truth flow is not…

计算机视觉与模式识别 · 计算机科学 2023-04-17 Zitang Sun , Shin'ya Nishida , Zhengbo Luo

While great strides have been made in using deep learning algorithms to solve supervised learning tasks, the problem of unsupervised learning - leveraging unlabeled examples to learn about the structure of a domain - remains a difficult…

机器学习 · 计算机科学 2017-03-02 William Lotter , Gabriel Kreiman , David Cox

A long-term video, such as a movie or TV show, is composed of various scenes, each of which represents a series of shots sharing the same semantic story. Spotting the correct scene boundary from the long-term video is a challenging task,…

计算机视觉与模式识别 · 计算机科学 2022-05-12 Haoqian Wu , Keyu Chen , Yanan Luo , Ruizhi Qiao , Bo Ren , Haozhe Liu , Weicheng Xie , Linlin Shen

Our objective is to transform a video into a set of discrete audio-visual objects using self-supervised learning. To this end, we introduce a model that uses attention to localize and group sound sources, and optical flow to aggregate…

计算机视觉与模式识别 · 计算机科学 2020-08-11 Triantafyllos Afouras , Andrew Owens , Joon Son Chung , Andrew Zisserman

In the field of continual learning, models are designed to learn tasks one after the other. While most research has centered on supervised continual learning, there is a growing interest in unsupervised continual learning, which makes use…

机器学习 · 计算机科学 2024-07-18 Daniel Marczak , Sebastian Cygert , Tomasz Trzciński , Bartłomiej Twardowski

Self-supervised tasks have been utilized to build useful representations that can be used in downstream tasks when the annotation is unavailable. In this paper, we introduce a self-supervised video representation learning method based on…

计算机视觉与模式识别 · 计算机科学 2021-02-23 Duc Quang Vu , Ngan T. H. Le , Jia-Ching Wang

Training robust deep video representations has proven to be computationally challenging due to substantial decoding overheads, the enormous size of raw video streams, and their inherent high temporal redundancy. Different from existing…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Shristi Das Biswas , Efstathia Soufleri , Arani Roy , Kaushik Roy

We introduce a framework that predicts the goals behind observable human action in video. Motivated by evidence in developmental psychology, we leverage video of unintentional action to learn video representations of goals without direct…

计算机视觉与模式识别 · 计算机科学 2020-12-17 Dave Epstein , Carl Vondrick