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Alpha estimation in natural images
Abstract
Many boundaries between objects in the world project onto curves in an image. However, boundaries involving natural objects (e.g., trees, hair, water, smoke) are often unworkable under this model because many pixels receive light from more than one object. We propose a technique for estimating alpha, the proportion in which two colors mix to produce a color at the boundary. The technique extends blue screen matting to backgrounds that have almost arbitrary color distributions, though coarse knowledge of the boundary's location is required. Results show a number of different objects moved from one image to another while maintaining naturalism.
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Citations
Cited by
GrabCut: Interactive foreground extraction using iterated graph cuts
Rother, C., Kolmogorov, V., & Blake, A. (2004) · ACM Transactions on Graphics · doi:10.1145/1015706.1015720 · Cited by 5,703
A Closed-Form Solution to Natural Image Matting
Levin, A., Lischinski, D., & Weiss, Y. (2008) · IEEE Transactions on Pattern Analysis and Machine Intelligence · doi:10.1109/tpami.2007.1177 · Cited by 1,616
"GrabCut": interactive foreground extraction using iterated graph cuts
Rother, C., Kolmogorov, V., & Blake, A. (2004) · ACM SIGGRAPH 2004 Papers · doi:10.1145/1186562.1015720 · Cited by 935
Interactive Image Segmentation Using an Adaptive GMMRF Model
Blake, A., Rother, C., Brown, M., Perez, P., & Torr, P. (2004) · Lecture Notes in Computer Science · doi:10.1007/978-3-540-24670-1_33 · Cited by 527
An iterative optimization approach for unified image segmentation and matting
Wang, J., & Cohen, M. F. (2005) · Tenth IEEE International Conference on Computer Vision (ICCV'05) Volume 1 · doi:10.1109/iccv.2005.37 · Cited by 316
Metadata
- Authors
- Ruzon, M. A., & Tomasi, C.
- Venue
- Proceedings IEEE Conference on Computer Vision and Pattern Recognition. CVPR 2000 (Cat. No.PR00662)
- Publisher
- IEEE Comput. Soc
- Published
- 2002-11-07
- Volume
- 1
- Pages
- 18-25
- ISSN
- 1063-6919 (ISSN-L)
- OpenAlex
- W2103334940
- Cited by
- 348
- References
- 0
- FWCI
- 10.50
- Type
- conference paper
- Language
- en
- Open access
- closed
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- Ruzon, M. A., & Tomasi, C. (2002). Alpha estimation in natural images. Proceedings IEEE Conference on Computer Vision and Pattern Recognition. CVPR 2000 (Cat. No.PR00662). https://doi.org/10.1109/cvpr.2000.855793
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