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Related papers: StepFormer: Self-supervised Step Discovery and Loc…

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Given the enormous number of instructional videos available online, learning a diverse array of multi-step task models from videos is an appealing goal. We introduce a new pre-trained video model, VideoTaskformer, focused on representing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Medhini Narasimhan , Licheng Yu , Sean Bell , Ning Zhang , Trevor Darrell

Procedural activity understanding requires perceiving human actions in terms of a broader task, where multiple keysteps are performed in sequence across a long video to reach a final goal state -- such as the steps of a recipe or a DIY…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Kumar Ashutosh , Santhosh Kumar Ramakrishnan , Triantafyllos Afouras , Kristen Grauman

In this paper we consider the problem of classifying fine-grained, multi-step activities (e.g., cooking different recipes, making disparate home improvements, creating various forms of arts and crafts) from long videos spanning up to…

Computer Vision and Pattern Recognition · Computer Science 2022-06-20 Xudong Lin , Fabio Petroni , Gedas Bertasius , Marcus Rohrbach , Shih-Fu Chang , Lorenzo Torresani

We address the problem of extracting key steps from unlabeled procedural videos, motivated by the potential of Augmented Reality (AR) headsets to revolutionize job training and performance. We decompose the problem into two steps:…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Anshul Shah , Benjamin Lundell , Harpreet Sawhney , Rama Chellappa

Understanding dynamics from visual observations is a challenging problem that requires disentangling individual objects from the scene and learning their interactions. While recent object-centric models can successfully decompose a scene…

Computer Vision and Pattern Recognition · Computer Science 2023-01-24 Ziyi Wu , Nikita Dvornik , Klaus Greff , Thomas Kipf , Animesh Garg

In this paper we address the problem of automatically discovering atomic actions in unsupervised manner from instructional videos. Instructional videos contain complex activities and are a rich source of information for intelligent agents,…

Computer Vision and Pattern Recognition · Computer Science 2021-06-29 AJ Piergiovanni , Anelia Angelova , Michael S. Ryoo , Irfan Essa

We propose LocFormer, a Transformer-based model for video grounding which operates at a constant memory footprint regardless of the video length, i.e. number of frames. LocFormer is designed for tasks where it is necessary to process the…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Cristian Rodriguez-Opazo , Edison Marrese-Taylor , Basura Fernando , Hiroya Takamura , Qi Wu

In this paper, we show that recent advances in video representation learning and pre-trained vision-language models allow for substantial improvements in self-supervised video object localization. We propose a method that first localizes…

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…

Computer Vision and Pattern Recognition · Computer Science 2021-02-23 Duc Quang Vu , Ngan T. H. Le , Jia-Ching Wang

We address the problem of automatically learning the main steps to complete a certain task, such as changing a car tire, from a set of narrated instruction videos. The contributions of this paper are three-fold. First, we develop a new…

Computer Vision and Pattern Recognition · Computer Science 2016-06-29 Jean-Baptiste Alayrac , Piotr Bojanowski , Nishant Agrawal , Josef Sivic , Ivan Laptev , Simon Lacoste-Julien

Understanding temporal dynamics of video is an essential aspect of learning better video representations. Recently, transformer-based architectural designs have been extensively explored for video tasks due to their capability to capture…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Sukmin Yun , Jaehyung Kim , Dongyoon Han , Hwanjun Song , Jung-Woo Ha , Jinwoo Shin

Despite their irresistible success, deep learning algorithms still heavily rely on annotated data. On the other hand, unsupervised settings pose many challenges, especially about determining the right inductive bias in diverse scenarios.…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Beril Besbinar , Pascal Frossard

In this paper we address the problem of automatically discovering atomic actions in unsupervised manner from instructional videos, which are rarely annotated with atomic actions. We present an unsupervised approach to learn atomic actions…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 AJ Piergiovanni , Anelia Angelova , Michael S. Ryoo , Irfan Essa

The abundance of instructional videos and their narrations over the Internet offers an exciting avenue for understanding procedural activities. In this work, we propose to learn video representation that encodes both action steps and their…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Yiwu Zhong , Licheng Yu , Yang Bai , Shangwen Li , Xueting Yan , Yin Li

Self-attention based Transformer models have demonstrated impressive results for image classification and object detection, and more recently for video understanding. Inspired by this success, we investigate the application of Transformer…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Chenlin Zhang , Jianxin Wu , Yin Li

We propose a deep video prediction model conditioned on a single image and an action class. To generate future frames, we first detect keypoints of a moving object and predict future motion as a sequence of keypoints. The input image is…

Computer Vision and Pattern Recognition · Computer Science 2019-10-07 Yunji Kim , Seonghyeon Nam , In Cho , Seon Joo Kim

In this paper we present an approach for localizing steps of procedural activities in narrated how-to videos. To deal with the scarcity of labeled data at scale, we source the step descriptions from a language knowledge base (wikiHow)…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Effrosyni Mavroudi , Triantafyllos Afouras , Lorenzo Torresani

In this paper, we study the problem of procedure planning in instructional videos. Here, an agent must produce a plausible sequence of actions that can transform the environment from a given start to a desired goal state. When learning…

Computer Vision and Pattern Recognition · Computer Science 2022-05-06 He Zhao , Isma Hadji , Nikita Dvornik , Konstantinos G. Derpanis , Richard P. Wildes , Allan D. Jepson

Human communication takes many forms, including speech, text and instructional videos. It typically has an underlying structure, with a starting point, ending, and certain objective steps between them. In this paper, we consider…

Computer Vision and Pattern Recognition · Computer Science 2016-05-12 Ozan Sener , Amir Roshan Zamir , Chenxia Wu , Silvio Savarese , Ashutosh Saxena

Video summarization has unprecedented importance to help us digest, browse, and search today's ever-growing video collections. We propose a novel subset selection technique that leverages supervision in the form of human-created summaries…

Computer Vision and Pattern Recognition · Computer Science 2016-05-02 Ke Zhang , Wei-Lun Chao , Fei Sha , Kristen Grauman
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