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We present a new method for segmenting, and a new user interface for indexing and visualizing, the semantic content of extended instructional videos. Given a series of key frames from the video, we generate a condensed view of the data by…

Information Retrieval · Computer Science 2007-05-23 Alexander Haubold , John R. Kender

The rapid development of AI models has led to a growing emphasis on enhancing their capabilities for complex input data such as videos. While large-scale video datasets have been introduced to support this growth, the unique challenges of…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Yinjie Zhao , Heng Zhao , Bihan Wen , Yew-Soon Ong , Joey Tianyi Zhou

Video summarization, by selecting the most informative and/or user-relevant parts of original videos to create concise summary videos, has high research value and consumer demand in today's video proliferation era. Multi-modal video…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Yaowei Guo , Jiazheng Xing , Xiaojun Hou , Shuo Xin , Juntao Jiang , Demetri Terzopoulos , Chenfanfu Jiang , Yong Liu

Effective information retrieval (IR) in settings with limited training data, particularly for complex queries, remains a challenging task. This paper introduces IR2, Information Regularization for Information Retrieval, a technique for…

Information Retrieval · Computer Science 2025-04-03 Jianyou Wang , Kaicheng Wang , Xiaoyue Wang , Weili Cao , Ramamohan Paturi , Leon Bergen

In this paper we consider the problem of video-based person re-identification, which is the task of associating videos of the same person captured by different and non-overlapping cameras. We propose a Siamese framework in which video…

Computer Vision and Pattern Recognition · Computer Science 2019-10-14 Marco Zamprogno , Marco Passon , Niki Martinel , Giuseppe Serra , Giuseppe Lancioni , Christian Micheloni , Carlo Tasso , Gian Luca Foresti

Most action recognition solutions rely on dense sampling to precisely cover the informative temporal clip. Extensively searching temporal region is expensive for a real-world application. In this work, we focus on improving the inference…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Chunhui Liu , Xinyu Li , Hao Chen , Davide Modolo , Joseph Tighe

Video object detection is more challenging compared to image object detection. Previous works proved that applying object detector frame by frame is not only slow but also inaccurate. Visual clues get weakened by defocus and motion blur,…

Computer Vision and Pattern Recognition · Computer Science 2017-12-19 Congrui Hetang , Hongwei Qin , Shaohui Liu , Junjie Yan

Text-guided video-to-video stylization transforms the visual appearance of a source video to a different appearance guided on textual prompts. Existing text-guided image diffusion models can be extended for stylized video synthesis.…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Minshan Xie , Hanyuan Liu , Chengze Li , Tien-Tsin Wong

Although the problem of automatic video summarization has recently received a lot of attention, the problem of creating a video summary that also highlights elements relevant to a search query has been less studied. We address this problem…

Computer Vision and Pattern Recognition · Computer Science 2017-09-29 Arun Balajee Vasudevan , Michael Gygli , Anna Volokitin , Luc Van Gool

We present a frame interpolation algorithm that synthesizes multiple intermediate frames from two input images with large in-between motion. Recent methods use multiple networks to estimate optical flow or depth and a separate network…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Fitsum Reda , Janne Kontkanen , Eric Tabellion , Deqing Sun , Caroline Pantofaru , Brian Curless

Upsampling videos of human activity is an interesting yet challenging task with many potential applications ranging from gaming to entertainment and sports broadcasting. The main difficulty in synthesizing video frames in this setting stems…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Hsuan-I Ho , Xu Chen , Jie Song , Otmar Hilliges

The metaverse is expected to provide immersive entertainment, education, and business applications. However, virtual reality (VR) transmission over wireless networks is data- and computation-intensive, making it critical to introduce novel…

Image and Video Processing · Electrical Eng. & Systems 2024-01-03 Yiyu Guo , Zhijin Qin , Xiaoming Tao , Geoffrey Ye Li

Deep Convolutional Neural Networks (CNNs) are powerful models that have achieved excellent performance on difficult computer vision tasks. Although CNNs perform well whenever large labeled training samples are available, they work badly on…

Computer Vision and Pattern Recognition · Computer Science 2021-06-03 Zhouyong Liu , Shun Luo , Wubin Li , Jingben Lu , Yufan Wu , Shilei Sun , Chunguo Li , Luxi Yang

Low-light video enhancement (LLVE) is an important yet challenging task with many applications such as photographing and autonomous driving. Unlike single image low-light enhancement, most LLVE methods utilize temporal information from…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Lin Liu , Junfeng An , Jianzhuang Liu , Shanxin Yuan , Xiangyu Chen , Wengang Zhou , Houqiang Li , Yanfeng Wang , Qi Tian

The past few years have witnessed great success in applying deep learning to enhance the quality of compressed image/video. The existing approaches mainly focus on enhancing the quality of a single frame, not considering the similarity…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Qunliang Xing , Zhenyu Guan , Mai Xu , Ren Yang , Tie Liu , Zulin Wang

Video summarization helps turn long videos into clear, concise representations that are easier to review, document, and analyze, especially in high-stakes domains like surgical training. Prior work has progressed from using basic visual…

Computer Vision and Pattern Recognition · Computer Science 2026-02-02 Shreya Rajpal , Michal Golovanevsky , Carsten Eickhoff

Action recognition is computationally expensive. In this paper, we address the problem of frame selection to improve the accuracy of action recognition. In particular, we show that selecting good frames helps in action recognition…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Shreyank N Gowda , Marcus Rohrbach , Laura Sevilla-Lara

Automating video-based data and machine learning pipelines poses several challenges including metadata generation for efficient storage and retrieval and isolation of key-frames for scene understanding tasks. In this work, we present two…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Sohini Roychowdhury

Video-to-video synthesis (vid2vid) aims for converting high-level semantic inputs to photorealistic videos. While existing vid2vid methods can achieve short-term temporal consistency, they fail to ensure the long-term one. This is because…

Computer Vision and Pattern Recognition · Computer Science 2020-07-17 Arun Mallya , Ting-Chun Wang , Karan Sapra , Ming-Yu Liu

As a special case of common object removal, image person removal is playing an increasingly important role in social media and criminal investigation domains. Due to the integrity of person area and the complexity of human posture, person…

Computer Vision and Pattern Recognition · Computer Science 2022-09-30 Yunliang Jiang , Chenyang Gu , Zhenfeng Xue , Xiongtao Zhang , Yong Liu