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Video matting has broad applications, from adding interesting effects to casually captured movies to assisting video production professionals. Matting with associated effects such as shadows and reflections has also attracted increasing…

Computer Vision and Pattern Recognition · Computer Science 2023-09-15 Geng Lin , Chen Gao , Jia-Bin Huang , Changil Kim , Yipeng Wang , Matthias Zwicker , Ayush Saraf

We recover a video of the motion taking place in a hidden scene by observing changes in indirect illumination in a nearby uncalibrated visible region. We solve this problem by factoring the observed video into a matrix product between the…

Computer Vision and Pattern Recognition · Computer Science 2019-12-06 Miika Aittala , Prafull Sharma , Lukas Murmann , Adam B. Yedidia , Gregory W. Wornell , William T. Freeman , Fredo Durand

Given a video and a set of input object masks, an omnimatte method aims to decompose the video into semantically meaningful layers containing individual objects along with their associated effects, such as shadows and reflections. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yao-Chih Lee , Erika Lu , Sarah Rumbley , Michal Geyer , Jia-Bin Huang , Tali Dekel , Forrester Cole

Alpha matting is widely used in video conferencing as well as in movies, television, and social media sites. Deep learning approaches to the matte extraction problem are well suited to video conferencing due to the consistent subject matter…

Computer Vision and Pattern Recognition · Computer Science 2023-07-03 Sharif Elcott , J. P. Lewis , Nori Kanazawa , Christoph Bregler

Capture stages are high-end sources of state-of-the-art recordings for downstream applications in movies, games, and other media. One crucial step in almost all pipelines is matting, i.e., separating captured performances from the…

Graphics · Computer Science 2025-11-20 Hannah Dröge , Janelle Pfeifer , Saskia Rabich , Reinhard Klein , Matthias B. Hullin , Markus Plack

The main challenge of Temporal Action Localization is to retrieve subtle human actions from various co-occurring ingredients, e.g., context and background, in an untrimmed video. While prior approaches have achieved substantial progress…

Computer Vision and Pattern Recognition · Computer Science 2022-06-24 Kun Xia , Le Wang , Sanping Zhou , Nanning Zheng , Wei Tang

Interactive portrait matting refers to extracting the soft portrait from a given image that best meets the user's intent through their inputs. Existing methods often underperform in complex scenarios, mainly due to three factors. (1) Most…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Siyi Jiao , Wenzheng Zeng , Changxin Gao , Nong Sang

Cutting out an object and estimating its opacity mask, known as image matting, is a key task in image and video editing. Due to the highly ill-posed issue, additional inputs, typically user-defined trimaps or scribbles, are usually needed…

Computer Vision and Pattern Recognition · Computer Science 2023-06-05 Jiawei Wu , Changqing Zhang , Zuoyong Li , Huazhu Fu , Xi Peng , Joey Tianyi Zhou

Video matting has traditionally been limited by the lack of high-quality ground-truth data. Most existing video matting datasets provide only human-annotated imperfect alpha and foreground annotations, which must be composited to background…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Yongtao Ge , Kangyang Xie , Guangkai Xu , Mingyu Liu , Li Ke , Longtao Huang , Hui Xue , Hao Chen , Chunhua Shen

Image matting is a key technique for image and video editing and composition. Conventionally, deep learning approaches take the whole input image and an associated trimap to infer the alpha matte using convolutional neural networks. Such…

Computer Vision and Pattern Recognition · Computer Science 2021-01-18 Haichao Yu , Ning Xu , Zilong Huang , Yuqian Zhou , Humphrey Shi

Unsupervised landmark learning is the task of learning semantic keypoint-like representations without the use of expensive input keypoint-level annotations. A popular approach is to factorize an image into a pose and appearance data stream,…

Computer Vision and Pattern Recognition · Computer Science 2020-01-28 Aysegul Dundar , Kevin J. Shih , Animesh Garg , Robert Pottorf , Andrew Tao , Bryan Catanzaro

Face filters have become a key element of short-form video content, enabling a wide array of visual effects such as stylization and face swapping. However, their performance often degrades in the presence of occlusions, where objects like…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Hyebin Cho , Jaehyup Lee

Video harmonization aims to adjust the foreground of a composite video to make it compatible with the background. So far, video harmonization has only received limited attention and there is no public dataset for video harmonization. In…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Xinyuan Lu , Shengyuan Huang , Li Niu , Wenyan Cong , Liqing Zhang

Many tasks in data mining and related fields can be formalized as matching between objects in two heterogeneous domains, including collaborative filtering, link prediction, image tagging, and web search. Machine learning techniques,…

Machine Learning · Computer Science 2014-10-24 Jingbo Shang , Tianqi Chen , Hang Li , Zhengdong Lu , Yong Yu

We aim to leverage diffusion to address the challenging image matting task. However, the presence of high computational overhead and the inconsistency of noise sampling between the training and inference processes pose significant obstacles…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Yihan Hu , Yiheng Lin , Wei Wang , Yao Zhao , Yunchao Wei , Humphrey Shi

Despite the success of deep learning in video understanding tasks, processing every frame in a video is computationally expensive and often unnecessary in real-time applications. Frame selection aims to extract the most informative and…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Mingjun Zhao , Yakun Yu , Xiaoli Wang , Lei Yang , Di Niu

This paper introduces an innovative approach for image matting that redefines the traditional regression-based task as a generative modeling challenge. Our method harnesses the capabilities of latent diffusion models, enriched with…

Computer Vision and Pattern Recognition · Computer Science 2024-07-31 Zhixiang Wang , Baiang Li , Jian Wang , Yu-Lun Liu , Jinwei Gu , Yung-Yu Chuang , Shin'ichi Satoh

Human instance matting aims to estimate an alpha matte for each human instance in an image, which is challenging as it easily fails in complex cases requiring disentangling mingled pixels belonging to multiple instances along hairy and thin…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Siyi Jiao , Wenzheng Zeng , Yerong Li , Huayu Zhang , Changxin Gao , Nong Sang , Mike Zheng Shou

Recent text-to-image models produce high-quality images, yet text ambiguity hinders precise control when specific styles or objects are required. There have been a number of recent works dealing with learning and composing multiple objects…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Sonali Godavarthy , Matthias Neuwirth-Trapp , Tim-Felix Faasch , Maarten Bieshaar , Michael Moeller , Danda Pani Paudel

We propose a novel neural-network-based method to perform matting of videos depicting people that does not require additional user input such as trimaps. Our architecture achieves temporal stability of the resulting alpha mattes by using…

Computer Vision and Pattern Recognition · Computer Science 2021-09-13 Ivan Molodetskikh , Mikhail Erofeev , Andrey Moskalenko , Dmitry Vatolin
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