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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

The most recent efforts in video matting have focused on eliminating trimap dependency since trimap annotations are expensive and trimap-based methods are less adaptable for real-time applications. Despite the latest tripmap-free methods…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Chung-Ching Lin , Jiang Wang , Kun Luo , Kevin Lin , Linjie Li , Lijuan Wang , Zicheng Liu

This paper proposes a novel deep learning-based video object matting method that can achieve temporally coherent matting results. Its key component is an attention-based temporal aggregation module that maximizes image matting networks'…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Yunke Zhang , Chi Wang , Miaomiao Cui , Peiran Ren , Xuansong Xie , Xian-sheng Hua , Hujun Bao , Qixing Huang , Weiwei Xu

In this paper, we propose an end to end solution for image matting i.e high-precision extraction of foreground objects from natural images. Image matting and background detection can be achieved easily through chroma keying in a studio…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Rishab Sharma , Rahul Deora , Anirudha Vishvakarma

Image matting is a fundamental computer vision problem and has many applications. Previous algorithms have poor performance when an image has similar foreground and background colors or complicated textures. The main reasons are prior…

Computer Vision and Pattern Recognition · Computer Science 2017-04-12 Ning Xu , Brian Price , Scott Cohen , Thomas Huang

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

Due to the difficulty of solving the matting problem, lots of methods use some kinds of assistance to acquire high quality alpha matte. Green screen matting methods rely on physical equipment. Trimap-based methods take manual interactions…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Jinlin Liu

Image matting refers to extracting precise alpha matte from natural images, and it plays a critical role in various downstream applications, such as image editing. Despite being an ill-posed problem, traditional methods have been trying to…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Jizhizi Li , Jing Zhang , Dacheng Tao

Image matting aims to obtain an alpha matte that separates foreground objects from the background accurately. Recently, trimap-free matting has been well studied because it requires only the original image without any extra input. Such…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Leo Shan Wenzhang Zhou Grace Zhao

We propose a method for creating a matte -- the per-pixel foreground color and alpha -- of a person by taking photos or videos in an everyday setting with a handheld camera. Most existing matting methods require a green screen background or…

Computer Vision and Pattern Recognition · Computer Science 2020-04-13 Soumyadip Sengupta , Vivek Jayaram , Brian Curless , Steve Seitz , Ira Kemelmacher-Shlizerman

In the portrait matting, the goal is to predict an alpha matte that identifies the effect of each pixel on the foreground subject. Traditional approaches and most of the existing works utilized an additional input, e.g., trimap, background…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Dogucan Yaman , Hazım Kemal Ekenel , Alexander Waibel

Cutting out an object and estimating its opacity mask, known as image matting, is a key task in many image editing applications. Deep learning approaches have made significant progress by adapting the encoder-decoder architecture of…

Computer Vision and Pattern Recognition · Computer Science 2020-03-18 Marco Forte , François Pitié

In Omnimatte, one aims to decompose a given video into semantically meaningful layers, including the background and individual objects along with their associated effects, such as shadows and reflections. Existing methods often require…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Dvir Samuel , Matan Levy , Nir Darshan , Gal Chechik , Rami Ben-Ari

Natural image matting is an important problem in computer vision and graphics. It is an ill-posed problem when only an input image is available without any external information. While the recent deep learning approaches have shown promising…

Computer Vision and Pattern Recognition · Computer Science 2019-10-04 Qiqi Hou , Feng Liu

Image matting is a longstanding problem in computational photography. Although, it has been studied for more than two decades, yet there is a challenge of developing an automatic matting algorithm which does not require any human efforts.…

Computer Vision and Pattern Recognition · Computer Science 2017-07-05 Vikas Gupta , Shanmuganathan Raman

Natural image matting aims to precisely separate foreground objects from background using alpha matte. Fully automatic natural image matting without external annotation is challenging. Well-performed matting methods usually require accurate…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Yuhongze Zhou , Liguang Zhou , Tin Lun Lam , Yangsheng Xu

Image matting requires high-quality pixel-level human annotations to support the training of a deep model in recent literature. Whereas such annotation is costly and hard to scale, significantly holding back the development of the research.…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Yanda Li , Zilong Huang , Gang Yu , Ling Chen , Yunchao Wei , Jianbo Jiao

Video matting aims to predict the alpha mattes for each frame from a given input video sequence. Recent solutions to video matting have been dominated by deep convolutional neural networks (CNN) for the past few years, which have become the…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Jiachen Li , Vidit Goel , Marianna Ohanyan , Shant Navasardyan , Yunchao Wei , Humphrey Shi

Natural image matting separates the foreground from background in fractional occupancy which can be caused by highly transparent objects, complex foreground (e.g., net or tree), and/or objects containing very fine details (e.g., hairs).…

Computer Vision and Pattern Recognition · Computer Science 2021-04-19 Yanan Sun , Chi-Keung Tang , Yu-Wing Tai

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
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