Surface Shape Reconstruction of a Nonrigid Transport Object Using Refraction and Motion
IEEE Transactions on Pattern Analysis and Machine Intelligence
IEEE Transactions on Pattern Analysis and Machine Intelligence
Multichannel Shape from Shading Techniques for Moving Specular Surfaces
ECCV '98 Proceedings of the 5th European Conference on Computer Vision-Volume II - Volume II
Reconstructing the Geometry of Flowing Water
ICCV '05 Proceedings of the Tenth IEEE International Conference on Computer Vision - Volume 2
ICCV '05 Proceedings of the Tenth IEEE International Conference on Computer Vision - Volume 2
ACM SIGGRAPH 2007 papers
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ACM SIGGRAPH 2008 papers
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ACM SIGGRAPH 2008 papers
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ACM SIGGRAPH Asia 2008 papers
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ACM SIGGRAPH Asia 2008 papers
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ACM SIGGRAPH 2009 papers
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ACCV'07 Proceedings of the 8th Asian conference on Computer vision - Volume Part I
DynTex: A comprehensive database of dynamic textures
Pattern Recognition Letters
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This paper introduces a method for reconstructing water from real video footage. Using a single input video, the proposed method produces a more informative reconstruction from a wider range of possible scenes than the current state of the art. The key is the combination of vision algorithms and physics laws. Shape from shading is used to capture the change of the water's surface, from which a vertical velocity gradient field is calculated. Such a gradient field is used to constrain the tracking of horizontal velocities by minimizing an energy function as a weighted combination of mass-conservation and intensity-conservation. Hence the final reconstruction contains a dense velocity field that is incompressible in 3D. The proposed method is efficient and performs consistently well across water of different types.