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Denoising diffusion probabilistic models are a promising new class of generative models that mark a milestone in high-quality image generation. This paper showcases their ability to sequentially generate video, surpassing prior methods in…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Ruihan Yang , Prakhar Srivastava , Stephan Mandt

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…

Machine Learning · Computer Science 2017-03-02 William Lotter , Gabriel Kreiman , David Cox

Matrix low rank approximation including the classical PCA and the robust PCA (RPCA) method have been applied to solve the background modeling problem in video analysis. Recently, it has been demonstrated that a special weighted low rank…

Optimization and Control · Mathematics 2017-03-21 Aritra Dutta , Xin Li

Unsupervised learning from visual data is one of the most difficult challenges in computer vision, being a fundamental task for understanding how visual recognition works. From a practical point of view, learning from unsupervised visual…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Ioana Croitoru , Simion-Vlad Bogolin , Marius Leordeanu

One significant factor we expect the video representation learning to capture, especially in contrast with the image representation learning, is the object motion. However, we found that in the current mainstream video datasets, some action…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Jinpeng Wang , Yuting Gao , Ke Li , Jianguo Hu , Xinyang Jiang , Xiaowei Guo , Rongrong Ji , Xing Sun

Foreground detection in a given video sequence is a pivotal step in many computer vision applications such as video surveillance system. Robust Principal Component Analysis (RPCA) performs low-rank and sparse decomposition and accomplishes…

Computer Vision and Pattern Recognition · Computer Science 2019-09-19 Amirhossein Khalilian-Gourtani , Shervin Minaee , Yao Wang

Deep video compression has made remarkable process in recent years, with the majority of advancements concentrated on P-frame coding. Although efforts to enhance B-frame coding are ongoing, their compression performance is still far behind…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Xihua Sheng , Li Li , Dong Liu , Shiqi Wang

Recently, the witness of the rapidly growing popularity of short videos on different Internet platforms has intensified the need for a background music (BGM) retrieval system. However, existing video-music retrieval methods only based on…

Information Retrieval · Computer Science 2021-08-04 Tingtian Li , Zixun Sun , Haoruo Zhang , Jin Li , Ziming Wu , Hui Zhan , Yipeng Yu , Hengcan Shi

We have made significant progress towards building foundational video diffusion models. As these models are trained using large-scale unsupervised data, it has become crucial to adapt these models to specific downstream tasks. Adapting…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Mihir Prabhudesai , Russell Mendonca , Zheyang Qin , Katerina Fragkiadaki , Deepak Pathak

Deep learning algorithms have recently shown to be a successful tool in estimating parameters of statistical models for which simulation is easy, but likelihood computation is challenging. But the success of these approaches depends on…

Machine Learning · Statistics 2024-02-20 Amanda Lenzi , Haavard Rue

We present an algorithm to estimate depth in dynamic video scenes. We propose to learn and infer depth in videos from appearance, motion, occlusion boundaries, and geometric context of the scene. Using our method, depth can be estimated…

Computer Vision and Pattern Recognition · Computer Science 2015-10-27 S. Hussain Raza , Omar Javed , Aveek Das , Harpreet Sawhney , Hui Cheng , Irfan Essa

This paper proposes a novel pretext task to address the self-supervised video representation learning problem. Specifically, given an unlabeled video clip, we compute a series of spatio-temporal statistical summaries, such as the spatial…

Computer Vision and Pattern Recognition · Computer Science 2021-02-01 Jiangliu Wang , Jianbo Jiao , Linchao Bao , Shengfeng He , Wei Liu , Yun-hui Liu

In light of the success of contrastive learning in the image domain, current self-supervised video representation learning methods usually employ contrastive loss to facilitate video representation learning. When naively pulling two…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Shuangrui Ding , Maomao Li , Tianyu Yang , Rui Qian , Haohang Xu , Qingyi Chen , Jue Wang , Hongkai Xiong

Pretrained detectors perform well on benchmarks but often suffer performance degradation in real-world deployments due to distribution gaps between training data and target environments. COCO-like benchmarks emphasize category diversity…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Junwoo Park , Jangho Lee , Sunho Lim

Computer vision applications based on videos often require the detection of moving objects in their first step. Background subtraction is then applied in order to separate the background and the foreground. In literature, background…

Computer Vision and Pattern Recognition · Computer Science 2019-01-14 T. Bouwmans , B. Garcia-Garcia

Query-based video grounding is an important yet challenging task in video understanding, which aims to localize the target segment in an untrimmed video according to a sentence query. Most previous works achieve significant progress by…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Shentong Mo , Daizong Liu , Wei Hu

Video decomposition is very important to extract moving foreground objects from complex backgrounds in computer vision, machine learning, and medical imaging, e.g., extracting moving contrast-filled vessels from the complex and noisy…

Computer Vision and Pattern Recognition · Computer Science 2022-05-09 Binjie Qin , Haohao Mao , Ruipeng Zhang , Yueqi Zhu , Song Ding , Xu Chen

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…

Computer Vision and Pattern Recognition · Computer Science 2022-01-17 Jonghwan Mun , Minchul Shin , Gunsoo Han , Sangho Lee , Seongsu Ha , Joonseok Lee , Eun-Sol Kim

This paper presents a robust regression approach for image binarization under significant background variations and observation noises. The work is motivated by the need of identifying foreground regions in noisy microscopic image or…

Computer Vision and Pattern Recognition · Computer Science 2018-07-18 Garret Vo , Chiwoo Park

Videos provide a rich source of information, but it is generally hard to extract dynamical parameters of interest. Inferring those parameters from a video stream would be beneficial for physical reasoning. Robots performing tasks in dynamic…