NDLI: Expression flow for 3D-aware face component transfer

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Expression flow for 3D-aware face component transfer

Content Provider	ACM Digital Library
Author	Yang, Fei Wang, Jue Shechtman, Eli Bourdev, Lubomir Metaxas, Dimitri
Abstract	We address the problem of correcting an undesirable expression on a face photo by transferring local facial components, such as a smiling mouth, from another face photo of the same person which has the desired expression. Direct copying and blending using existing compositing tools results in semantically unnatural composites, since expression is a global effect and the local component in one expression is often incompatible with the shape and other components of the face in another expression. To solve this problem we present Expression Flow, a 2D flow field which can warp the target face globally in a natural way, so that the warped face is compatible with the new facial component to be copied over. To do this, starting with the two input face photos, we jointly construct a pair of 3D face shapes with the same identity but different expressions. The expression flow is computed by projecting the difference between the two 3D shapes back to 2D. It describes how to warp the target face photo to match the expression of the reference photo. User studies suggest that our system is able to generate face composites with much higher fidelity than existing methods.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF MP4
ISBN	9781450309431
DOI	10.1145/1964921.1964955
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-08-07
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Image warping Facial component Face modeling Facial flow Facial expression
Content Type	Audio Text
Resource Type	Article

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