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Many speech segments in movies are re-recorded in a studio during postproduction, to compensate for poor sound quality as recorded on location. Manual alignment of the newly-recorded speech with the original lip movements is a tedious task.…

计算机视觉与模式识别 · 计算机科学 2018-08-21 Tavi Halperin , Ariel Ephrat , Shmuel Peleg

Suppose that we are given a set of videos, along with natural language descriptions in the form of multiple sentences (e.g., manual annotations, movie scripts, sport summaries etc.), and that these sentences appear in the same temporal…

计算机视觉与模式识别 · 计算机科学 2015-12-22 Piotr Bojanowski , Rémi Lajugie , Edouard Grave , Francis Bach , Ivan Laptev , Jean Ponce , Cordelia Schmid

Egocentric videos capture scenes from a wearer's viewpoint, resulting in dynamic backgrounds, frequent motion, and occlusions, posing challenges to accurate keystep recognition. We propose a flexible graph-learning framework for…

计算机视觉与模式识别 · 计算机科学 2026-02-11 Julia Lee Romero , Kyle Min , Subarna Tripathi , Morteza Karimzadeh

Egocentric assistants often rely on first-person view data to capture user behavior and context for personalized services. Since different users exhibit distinct habits, preferences, and routines, such personalization is essential for truly…

计算机视觉与模式识别 · 计算机科学 2026-04-23 Yanshuo Wang , Yuan Xu , Xuesong Li , Jie Hong , Yizhou Wang , Chang Wen Chen , Wentao Zhu

Narrated instructional videos often show and describe manipulations of similar objects, e.g., repairing a particular model of a car or laptop. In this work we aim to reconstruct such objects and to localize associated narrations in 3D.…

计算机视觉与模式识别 · 计算机科学 2021-09-13 Dimitri Zhukov , Ignacio Rocco , Ivan Laptev , Josef Sivic , Johannes L. Schönberger , Bugra Tekin , Marc Pollefeys

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)…

计算机视觉与模式识别 · 计算机科学 2023-06-07 Effrosyni Mavroudi , Triantafyllos Afouras , Lorenzo Torresani

Gaze is an essential prompt for analyzing human behavior and attention. Recently, there has been an increasing interest in determining gaze direction from facial videos. However, video gaze estimation faces significant challenges, such as…

计算机视觉与模式识别 · 计算机科学 2024-04-11 Swati Jindal , Mohit Yadav , Roberto Manduchi

Few-shot video classification aims to learn new video categories with only a few labeled examples, alleviating the burden of costly annotation in real-world applications. However, it is particularly challenging to learn a class-invariant…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Songyang Zhang , Jiale Zhou , Xuming He

Video-Language Pretraining (VLP), which aims to learn transferable representation to advance a wide range of video-text downstream tasks, has recently received increasing attention. Best performing works rely on large-scale, 3rd-person…

Affordance-centric Question-driven Task Completion (AQTC) for Egocentric Assistant introduces a groundbreaking scenario. In this scenario, through learning instructional videos, AI assistants provide users with step-by-step guidance on…

计算机视觉与模式识别 · 计算机科学 2023-06-27 Chao Zhang , Shiwei Wu , Sirui Zhao , Tong Xu , Enhong Chen

We propose a self-supervised algorithm to learn representations from egocentric video data. Recently, significant efforts have been made to capture humans interacting with their own environments as they go about their daily activities. In…

计算机视觉与模式识别 · 计算机科学 2022-09-28 Himangi Mittal , Pedro Morgado , Unnat Jain , Abhinav Gupta

Learning to localize temporal boundaries of procedure steps in instructional videos is challenging due to the limited availability of annotated large-scale training videos. Recent works focus on learning the cross-modal alignment between…

计算机视觉与模式识别 · 计算机科学 2024-09-25 Yuxiao Chen , Kai Li , Wentao Bao , Deep Patel , Yu Kong , Martin Renqiang Min , Dimitris N. Metaxas

The goal of this paper is to determine the spatio-temporal location of actions in video. Where training from hard to obtain box annotations is the norm, we propose an intuitive and effective algorithm that localizes actions from their class…

计算机视觉与模式识别 · 计算机科学 2017-12-14 Pascal Mettes , Cees G. M. Snoek , Shih-Fu Chang

We study instruction-guided editing of egocentric videos for interactive AR applications. While recent AI video editors perform well on third-person footage, egocentric views present unique challenges - including rapid egomotion and…

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…

计算机视觉与模式识别 · 计算机科学 2016-05-12 Ozan Sener , Amir Roshan Zamir , Chenxia Wu , Silvio Savarese , Ashutosh Saxena

The objective of this work is to manipulate visual timelines (e.g. a video) through natural language instructions, making complex timeline editing tasks accessible to non-expert or potentially even disabled users. We call this task…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Alejandro Pardo , Jui-Hsien Wang , Bernard Ghanem , Josef Sivic , Bryan Russell , Fabian Caba Heilbron

The ability to anticipate human-object interactions is highly desirable in an intelligent assistive system in order to guide users during daily life activities and understand their short and long-term goals. Creating systems with such…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Daniele Materia , Francesco Ragusa , Giovanni Maria Farinella

Advances in deep learning have enabled the development of models that have exhibited a remarkable tendency to recognize and even localize actions in videos. However, they tend to experience errors when faced with scenes or examples beyond…

计算机视觉与模式识别 · 计算机科学 2022-03-15 Sathyanarayanan N. Aakur , Sanjoy Kundu , Nikhil Gunti

The best summary of a long video differs among different people due to its highly subjective nature. Even for the same person, the best summary may change with time or mood. In this paper, we introduce the task of generating customized…

计算机视觉与模式识别 · 计算机科学 2018-03-05 Jinsoo Choi , Tae-Hyun Oh , In So Kweon

We address the task of unsupervised retargeting of human actions from one video to another. We consider the challenging setting where only a few frames of the target is available. The core of our approach is a conditional generative model…

计算机视觉与模式识别 · 计算机科学 2020-03-26 Jessica Lee , Deva Ramanan , Rohit Girdhar