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We present a video generation model that accurately reproduces object motion, changes in camera viewpoint, and new content that arises over time. Existing video generation methods often fail to produce new content as a function of time…

计算机视觉与模式识别 · 计算机科学 2022-06-10 Tim Brooks , Janne Hellsten , Miika Aittala , Ting-Chun Wang , Timo Aila , Jaakko Lehtinen , Ming-Yu Liu , Alexei A. Efros , Tero Karras

Determinantal Point Processes (DPPs) are a family of probabilistic models that have a repulsive behavior, and lend themselves naturally to many tasks in machine learning where returning a diverse set of objects is important. While there are…

统计理论 · 数学 2017-03-03 John Urschel , Victor-Emmanuel Brunel , Ankur Moitra , Philippe Rigollet

This paper focuses on self-supervised video representation learning. Most existing approaches follow the contrastive learning pipeline to construct positive and negative pairs by sampling different clips. However, this formulation tends to…

计算机视觉与模式识别 · 计算机科学 2022-04-04 Rui Qian , Weiyao Lin , John See , Dian Li

Temporal segmentation of long videos is an important problem, that has largely been tackled through supervised learning, often requiring large amounts of annotated training data. In this paper, we tackle the problem of self-supervised…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Sathyanarayanan N. Aakur , Sudeep Sarkar

Reinforcement learning based post-training paradigms for Video Large Language Models (VideoLLMs) have achieved significant success by optimizing for visual-semantic tasks such as captioning or VideoQA. However, while these approaches…

计算机视觉与模式识别 · 计算机科学 2026-01-08 Xiaokun Sun , Zezhong Wu , Zewen Ding , Linli Xu

Automatically describing a video with natural language is regarded as a fundamental challenge in computer vision. The problem nevertheless is not trivial especially when a video contains multiple events to be worthy of mention, which often…

计算机视觉与模式识别 · 计算机科学 2018-04-24 Yehao Li , Ting Yao , Yingwei Pan , Hongyang Chao , Tao Mei

Self-supervised approaches for video have shown impressive results in video understanding tasks. However, unlike early works that leverage temporal self-supervision, current state-of-the-art methods primarily rely on tasks from the image…

计算机视觉与模式识别 · 计算机科学 2023-12-21 Ishan Rajendrakumar Dave , Simon Jenni , Mubarak Shah

The wide popularity of short videos on social media poses new opportunities and challenges to optimize recommender systems on the video-sharing platforms. Users provide complex and multi-faceted responses towards recommendations, including…

机器学习 · 计算机科学 2022-05-27 Qingpeng Cai , Ruohan Zhan , Chi Zhang , Jie Zheng , Guangwei Ding , Pinghua Gong , Dong Zheng , Peng Jiang

This paper targets the task of language-based video moment localization. The language-based setting of this task allows for an open set of target activities, resulting in a large variation of the temporal lengths of video moments. Most…

计算机视觉与模式识别 · 计算机科学 2022-03-04 Qi Zheng , Jianfeng Dong , Xiaoye Qu , Xun Yang , Yabing Wang , Pan Zhou , Baolong Liu , Xun Wang

Many methods have been developed to help people find the video contents they want efficiently. However, there are still some unsolved problems in this area. For example, given a query video and a reference video, how to accurately localize…

计算机视觉与模式识别 · 计算机科学 2018-08-07 Yang Feng , Lin Ma , Wei Liu , Tong Zhang , Jiebo Luo

Visual Place Recognition (VPR) is the task of matching current visual imagery from a camera to images stored in a reference map of the environment. While initial VPR systems used simple direct image methods or hand-crafted visual features,…

计算机视觉与模式识别 · 计算机科学 2021-02-25 Sourav Garg , Michael Milford

While most existing video summarization approaches aim to extract an informative summary of a single video, we propose a novel framework for summarizing multi-view videos by exploiting both intra- and inter-view content correlations in a…

计算机视觉与模式识别 · 计算机科学 2016-08-02 Rameswar Panda , Abir Das , Amit K. Roy-Chowdhury

Fine-tuning LLMs on tabular classification tasks can lead to the phenomenon of fine-tuning multiplicity where equally well-performing models make conflicting predictions on the same input. Fine-tuning multiplicity can arise due to…

机器学习 · 计算机科学 2025-06-05 Faisal Hamman , Pasan Dissanayake , Saumitra Mishra , Freddy Lecue , Sanghamitra Dutta

Dense video captioning is an extremely challenging task since accurate and coherent description of events in a video requires holistic understanding of video contents as well as contextual reasoning of individual events. Most existing…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Jonghwan Mun , Linjie Yang , Zhou Ren , Ning Xu , Bohyung Han

The efficacy of video generation models heavily depends on the quality of their training datasets. Most previous video generation models are trained on short video clips, while recently there has been increasing interest in training long…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Tianwei Xiong , Yuqing Wang , Daquan Zhou , Zhijie Lin , Jiashi Feng , Xihui Liu

Despite the recent success of neural networks in image feature learning, a major problem in the video domain is the lack of sufficient labeled data for learning to model temporal information. In this paper, we propose an unsupervised…

计算机视觉与模式识别 · 计算机科学 2016-11-29 Linchao Zhu , Zhongwen Xu , Yi Yang

Robust frame-wise embeddings are essential to perform video analysis and understanding tasks. We present a self-supervised method for representation learning based on aligning temporal video sequences. Our framework uses a transformer-based…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Keyne Oei , Amr Gomaa , Anna Maria Feit , João Belo

The local optimality of motion vectors (MVs) is an intrinsic property in video coding, and any modifications to the MVs will inevitably destroy this optimality, making it a sensitive indicator of steganography in the MV domain. Thus the…

计算机视觉与模式识别 · 计算机科学 2021-12-23 Liming Zhai , Lina Wang , Yanzhen Ren , Yang Liu

Video summarization techniques have been proven to improve the overall user experience when it comes to accessing and comprehending video content. If the user's preference is known, video summarization can identify significant information…

计算机视觉与模式识别 · 计算机科学 2024-11-07 Brian Chen , Xiangyuan Zhao , Yingnan Zhu

This paper addresses the problem of video summarization. Given an input video, the goal is to select a subset of the frames to create a summary video that optimally captures the important information of the input video. With the large…

计算机视觉与模式识别 · 计算机科学 2018-09-03 Mrigank Rochan , Linwei Ye , Yang Wang