Video matting of complex scenes
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
ACM SIGGRAPH 2005 Papers
ACM SIGGRAPH 2005 Papers
A Closed-Form Solution to Natural Image Matting
IEEE Transactions on Pattern Analysis and Machine Intelligence
Image and video matting: a survey
Foundations and Trends® in Computer Graphics and Vision
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ACM SIGGRAPH 2009 papers
Temporally coherent video matting
Graphical Models
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Computers and Graphics
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Extracting temporally-coherent alpha mattes in video is an important but challenging problem in post-production. Previous video matting systems are highly sensitive to initial conditions and image noise, thus cannot reliably produce stable alpha mattes without temporal jitter. In this paper we propose an improved video matting system which contains two new components: (1) an accurate trimap propagation mechanism for setting up the initial matting conditions in a temporally-coherent way; and (2) a temporal matte filter which can improve the temporal coherence of the mattes while maintaining the matte structures on individual frames. Experimental results show that compared with previous methods, the two new components lead to alpha mattes with better temporal coherence.