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Automatic Real-Time Video Matting Using Time-of-Flight Camera and Multichannel Poisson Equations

Liang Wang, Minglun Gong, Chenxi Zhang, Ruigang Yang, Cha Zhang, Yee-Hong Yang
2011 International Journal of Computer Vision  
This paper presents an automatic real-time video matting system. The proposed system consists of two novel components.  ...  The scene depth information returned by the TOF camera is less sensitive to environment changes, which makes our method robust to illumination variation, dynamic background and camera motion.  ...  known or near static.  ... 
doi:10.1007/s11263-011-0471-x fatcat:m3sg6g6vkjat7f3rbauos257mu

Practical, Real-time Studio Matting using Dual Imagers [article]

Morgan McGuire, Wojciech Matusik, William Yerazunis
2006 Symposium on Rendering  
This system eliminates color spill and other drawbacks of blue-screen matting while preserving many of its desirable properties (e.g., unassisted, real-time, natural illumination) over more recent methods  ...  Because two imagers capture more information than one, we are able to automatically process scenes that would require manual retouching with blue- screen matting.  ...  We require a special background, but produce much higher-resolution mattes from a normal form-factor camera, and do so in real-time.  ... 
doi:10.2312/egwr/egsr06/235-244 fatcat:paah5a3rinfxtbvc3xdgzgku34

Long-Range Feature Propagating for Natural Image Matting [article]

Qinglin Liu, Haozhe Xie, Shengping Zhang, Bineng Zhong, Rongrong Ji
2021 arXiv   pre-print
Natural image matting estimates the alpha values of unknown regions in the trimap.  ...  Finally, we use the matting module which takes the image, trimap and context features to estimate the alpha matte.  ...  Shared Matting [15] uses only the pixels in the near boundaries between the known and unknown regions to speed the image matting.  ... 
arXiv:2109.12252v1 fatcat:tiqyg4m2bfgthfi623qmd737mu

Natural video matting using camera arrays

Neel Joshi, Wojciech Matusik, Shai Avidan
2006 ACM Transactions on Graphics  
Our current system runs at several frames per second, and we believe that it is the first system capable of computing high-quality alpha mattes at near real-time rates without the use of active illumination  ...  Our current system runs at several frames per second, and we believe that it is the first system capable of computing high-quality alpha mattes at near real-time rates without the use of active illumination  ...  We would also like to thank John Barnwell for his help with building the camera array structure.  ... 
doi:10.1145/1141911.1141955 fatcat:anvfxqnmhfecze5riqufo5vhge

Natural video matting using camera arrays

Neel Joshi, Wojciech Matusik, Shai Avidan
2006 ACM SIGGRAPH 2006 Papers on - SIGGRAPH '06  
Our current system runs at several frames per second, and we believe that it is the first system capable of computing high-quality alpha mattes at near real-time rates without the use of active illumination  ...  Our current system runs at several frames per second, and we believe that it is the first system capable of computing high-quality alpha mattes at near real-time rates without the use of active illumination  ...  We would also like to thank John Barnwell for his help with building the camera array structure.  ... 
doi:10.1145/1179352.1141955 fatcat:4s6x7m2q3rgebp5qzrfdj4drru

Defocus video matting

Morgan McGuire, Wojciech Matusik, Hanspeter Pfister, John F. Hughes, Frédo Durand
2005 ACM Transactions on Graphics  
Defocus matting pulls mattes with sub-pixel detail from natural images without user intervention and in situations where blue screen matting is impractical.  ...  Current techniques require either a known background (e.g., a blue screen) or extensive user interaction (e.g., to specify known foreground and background elements).  ...  The novel backgrounds are photographs by Shriram Krishnamurthi.  ... 
doi:10.1145/1073204.1073231 fatcat:rivsliu2zbeapihd676rk5tt7y

Defocus video matting

Morgan McGuire, Wojciech Matusik, Hanspeter Pfister, John F. Hughes, Frédo Durand
2005 ACM SIGGRAPH 2005 Papers on - SIGGRAPH '05  
Defocus matting pulls mattes with sub-pixel detail from natural images without user intervention and in situations where blue screen matting is impractical.  ...  Current techniques require either a known background (e.g., a blue screen) or extensive user interaction (e.g., to specify known foreground and background elements).  ...  The novel backgrounds are photographs by Shriram Krishnamurthi.  ... 
doi:10.1145/1186822.1073231 fatcat:mvvgl4p2jrd2vfj2obmc26la2y

Confidence-driven image co-matting

Linbo Wang, Tianchen Xia, Yanwen Guo, Ligang Liu, Jue Wang
2014 Computers & graphics  
that contain slightly-deformed instances of the same foreground object against different backgrounds.  ...  Our system first generates trimaps for input images using co-segmentation, and an initial alpha matte for each image using single image matting.  ...  Running time Overall, the co-matting framework is more timeintensive compared with single image matting approaches.  ... 
doi:10.1016/j.cag.2013.10.014 fatcat:bxtjf6dn2bdhjjdh7nivbxowfe

Real-Time High-Resolution Background Matting [article]

Shanchuan Lin, Andrey Ryabtsev, Soumyadip Sengupta, Brian Curless, Steve Seitz, Ira Kemelmacher-Shlizerman
2020 arXiv   pre-print
The main challenge is to compute a high-quality alpha matte, preserving strand-level hair details, while processing high-resolution images in real-time.  ...  We introduce a real-time, high-resolution background replacement technique which operates at 30fps in 4K resolution, and 60fps for HD on a modern GPU.  ...  Matting with a known natural background.  ... 
arXiv:2012.07810v1 fatcat:kkp2bdglkjbm5gzsi5vudo7q2q

Castle in the Sky: Dynamic Sky Replacement and Harmonization in Videos [article]

Zhengxia Zou
2020 arXiv   pre-print
Our method runs in real-time and is free of user interactions. We decompose this artistic creation process into a couple of proxy tasks including sky matting, motion estimation, and image blending.  ...  This paper proposes a vision-based method for video sky replacement and harmonization, which can automatically generate realistic and dramatic sky backgrounds in videos with controllable styles.  ...  We can see our method reaches a real-time processing speed (24 fps) at the output resolution of 640×320 and a near real-time processing speed (15 fps) at 854×480 but still has large rooms for speed up.  ... 
arXiv:2010.11800v1 fatcat:dh3kpnrqp5bebeoelb4ip7lswa

Real-Time Foreground Segmentation with Kinect Sensor [chapter]

Luigi Cinque, Alessandro Danani, Piercarlo Dondi, Luca Lombardi
2015 Lecture Notes in Computer Science  
The most known of these devices is certainly the Microsoft Kinect, able to provide at the same time a color image and a depth map of the scene.  ...  This paper presents an alternative and more general solution for the foreground segmentation and a comparison with the standard background subtraction algorithm of Kinect.  ...  ToF Based Segmentation Time-of-Flight cameras are active imaging sensors able to provide distance measures of an environment using laser light in near-infrared spectrum. they can work with impulses or  ... 
doi:10.1007/978-3-319-23234-8_6 fatcat:lsypxe2p6bhkpc5kfqmusnmgcm

AlphaGAN: Generative adversarial networks for natural image matting [article]

Sebastian Lutz, Konstantinos Amplianitis, Aljosa Smolic
2018 arXiv   pre-print
We present the first generative adversarial network (GAN) for natural image matting.  ...  Our novel generator network is trained to predict visually appealing alphas with the addition of the adversarial loss from the discriminator that is trained to classify well-composited images.  ...  We would also like to thank the authors of the Deep Image Matting [33] paper for providing us with their training dataset and their evaluation code.  ... 
arXiv:1807.10088v1 fatcat:xeb7v5u2cjh7fhjaisd6t2aloa

Improved Image Matting via Real-time User Clicks and Uncertainty Estimation [article]

Tianyi Wei, Dongdong Chen, Wenbo Zhou, Jing Liao, Hanqing Zhao, Weiming Zhang, Nenghai Yu
2021 arXiv   pre-print
Image matting is a fundamental and challenging problem in computer vision and graphics.  ...  To this end, this paper proposes an improved deep image matting framework which is trimap-free and only needs several user click interactions to eliminate the ambiguity.  ...  Besides, a real-time user interactive system is built. Related Work Natural Image Matting.  ... 
arXiv:2012.08323v2 fatcat:vmfc2egjxnbx7bhtb3gp6ve6uu

Color range determination and alpha matting for color images

Zhenyi Luo, Wenyi Wang, Jiying Zhao, Yu Liu
2013 2013 IEEE International Conference on Imaging Systems and Techniques (IST)  
The experimental results demonstrate that our proposed method can handle images with one background color, images with gridded background, and images with difficult regions such as complex hair stripes  ...  We proposed a better color selection method, which improves matting results in the experiments. In the thesis, a detailed implementation of robust matting is provided.  ...  By introducing the 3D camera, depth keying could generates matte in natural background in real time, without user input such as trimap or foreground and background scribbles.  ... 
doi:10.1109/ist.2013.6729679 fatcat:allkyqhkubcevh4epzmswb3qda

Practical automatic background substitution for live video

Haozhi Huang, Xiaonan Fang, Yufei Ye, Songhai Zhang, Paul L. Rosin
2017 Computational Visual Media  
substitution system has been proposed which can run in real time, which makes it practical for everyday applications.  ...  The objective of background substitution is to extract the foreground from the input video and then combine it with a new background.  ...  [23] ), precluding real-time performance.  ... 
doi:10.1007/s41095-016-0074-0 fatcat:dix4nqog4vbjnaqyceh5t37iem
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